How To Set Ignition Timing Without Timing Light


In this video you will learn how manually set your car's ignition timing without timing light WANT TO BUY TUNING INSTRUMENTS? Here's the link tachometer/rpm. It is an important topic because as little as one degree can be the difference between an engine that runs up front and an engine that sputters and pops its way to last place. 020" with the points setting on the highest part of the cam lobe. Rev the engine to 2,500 rpm and check timing with the timing light. If you mark the groove and white notch with some white paint it will show up when the strobe light hits it. Thanks Guys. If the valves are adjusted anywhere close, the engine will run. it is trying to read one discharge signal and seeing several,this causes a biased reading. using an adjustable timing light, set the light to 36 degrees advanced. This will allow you to make sure the curve of the ignition timing is being set, as well as the initial timing. Point the timing light at the pulley, and rev the engine until you no longer see the pulley marks move counter-clockwise (CCW), to your left. I've worked on all kinds of engines since the mid 60's and have yet to read a manufacturer's advice telling me to not use a timing light or the "numbers" to set the ignition timing. Then the timing Pin is inserted through hole on front side of timing gear cover and engine turned by crank until pin falls into recess on face of. Re-Curving Ignition Timing 250-rpm increments from idle until no more advance is forthcoming. The timing light connects to the battery and coil-to-spark plug wire. Lack of proper spark timing can cause a different problem, One or more of the cylinders may misfire. Also when installing the wiring solder and shrink wrap all connections. TIMING LIGHT. The magnets will still pass by the ignition coil, but the spark will occur at the wrong time. It has 14 preset ignition curves to cover a stock engine through exhaust and intake changes to a full blown big inch high compression motor. In this article, we will discuss simple ways to time your engine even without the need to use a timing light. No distributor means there's no distributor cap or rotor to replace, and no troublesome vacuum or mechanical advance mechanisms to cause timing problems. I have been trying for months to set the timing by ear and by static but no solution. It is a rather crude but still valid means to either set the ignition timing to an adjustment good enough to start and run an engine satisfactorily for the first time, or to time an engine when a stroboscopic lamp is not available. you will need one or the other as well to set the total advance. affect ignition timing and hence engine performance. The engine has a thunderbolt IV ignition system with a two barrel carb. There is a procedure for setting the ignition timing to the spec without a timing light. Max Timing: Hard caps the vacuum advance from advancing too far. Either attach your strobe light to no 1 plug lead, or (if you don’t have a light) remove no 1 plug lead and fit a spare spark plug to it (with the body of the plug suitably grounded to the engine). this would change the engine rpm to set the initial engine ignition timing. 5 deg (between 3 and 6 on the indicator) a few days ago and today it was slightly above 6. I want to set my initial timing. while this is a good way to time a motor, i think that initial will be fine for you. The flywheel can be mounted to the crankshaft in 2 opposite orientations: 1) Correctly (according to "factory" procedure) - In this case, the "TDC" timing marks apply to. If you want to check fault codes,you do the same thing,bridge pins 5 & 6 then then turn on the ignition & fault codes will come up. 48 pilot, 178 main, & needle on 2nd clip. If you have the air/fuel ratio set properly and your engine can idle somewhat decently, even if it's by holding the throttle pedal down off closed-throttle to keep the engine from stalling, you can begin by setting a ball-park ignition advance value. Ignition advance needs are shown at the far right of the page. Instructions. Make this adjustment by bringing a lobe of the cam under the rubbing block of the breaker arm, then loosen the gap adjusting screws and rotate the adjusting screw. Unplug that wire bring the motor up to operating temp set your timing at 0* shut the truck off plug your wire back in reset the computer and you should be good to go. Remove that. To break it down in simpler terms, timing is setting where you want the spark to occur relative to piston position and speed. Then retard a bit, say 1/8 to 1/4 inch clockwise. All timing lights are somewhat different you may need to follow the timing light directions. Listen for the electric fuel pump in the fuel tank to make a buzzing noise when the ignition is turned on (you may have to open the gas cap to hear it). A Harley-Davidson motorcycle engine ignition timing device which electronically determines piston top dead center positioning and the degrees of spark plug ignition before or after TDC to permit dynamic setting and monitoring of the engine ignition timing. Innova 3551 Timing Light offers an entry-level timing light with all the features a weekend mechanic needs; Inductive timing light works with most import and domestic ignition systems; Solid state electronic circuitry; Slim, swivel barrel design allows access to even the most difficult-to-reach timing marks. Ignition Timing Toyota 2e Engineat least 3500 RPMs. Has had a lot of money spent on it including new battery, starter motor and windscreen. I have it running nicely but want to set timing with a timing light rather then ear just to make sure. Set your timing where you think you want it, Mark TDC on the flywheel and the timing mark that you set (30* or whatever). Bike still feels the same. to set your base timing without a light, you just turn the motor over in it's normal direction of rotation until the mark lines up with where you want it. Be ready to set ignition timing right off the bat with the engine at 2,500 to 3,500 rpm. Set the timing for full advance - at about 2. Diagnose any wiring and/or vacuum line issues. But first things first. If you want to set timing for TDC for x degrees before TDC, you'll need a timing light that runs off the battery posts and triggers off #1 spark plug wire by clamping the it's trigger pickup on the spark plug wire. 020", next rotate the distributor base until the points break using a indicator light. The cam also plays a big part in the equation. ignition timing Post by aljones » 9 years ago Hi gang - I have just installed a new accuspark distributor on my Mog - set everything up (no. My question deals with setting the timing. Had to slightly modify my gauge but that’s fixed now. Then take the car out and drive it. I have now got it set to approx 20 - 25° BTDC. Believe the timing light above all else, it's always the real timing (if there's a discrepancy). The ignition coils provide the spark that fires each of the spark plugs in an engine. Really useful little piece of equipment. Taken from my post--454 Engine Ignition Information-- Expanded. In this state the tractor can backfire and run pretty ragged. The results at part throttle are amazing. I then set the timing on the balancer at 10 advanced. For example, if value is HIGH, pulseIn() waits for the pin to go from LOW to HIGH, starts timing, then waits for the pin to go LOW and stops timing. Start the engine once more and set the ignition timing per the underhood emission decal. Static is is the pre set advance of the ignition that is set without any influence from vacuum or centrifugal. Attach a voltmeter or 12v light between the distributor connection and ground, and turn on the ignition. Ignition timing is typically split into three types. When you pull the trigger of the timing light (with the engine running), each time the Number 1 plug fires, the timing light flashes a beam of light. This will now put compter back into the mix and it will add timing to engine. Turn the Slope control pot. No timing light needed. Stow the timing light, and then restart the bus. So far over the years, I've tuned two engines that liked 50 total and both had low static compression and fairly long cams. diagnosis connector, the ignition timing will not be the basic timing but be ordinary timing. If the light illuminates, you've done it right. Before adjusting the engine timing, ensure that the breaker point contacts are in good shape and the gap is set to. It is a rather crude but still valid means to either set the ignition timing to an adjustment good enough to start and run an engine satisfactorily for the first time, or to time an engine when a stroboscopic lamp is not available. Below 1,200 RPM, the PCM is monitoring the 18X reference signal and using the 18X signal as the reference for ignition timing advance. Put the engine in "diagnostic mode". Instructions. 93 honda civic will not start after engine swap [ 0 Answers ]. Find the notch on the crank pulley and draw a mark on the slash guard to align with it. Dynamic timing is setting the ignition timing with the engine running and requires a more expensive piece of equipment called a “timing light”. The extra timing mark is. Shine the light into the timing hole. Now I just fitted a magnetic chopper (electronic ignition) and when I tried to check the static timing the time light is on and won't come off not. Start the engine once more and set the ignition timing per the underhood emission decal. Attach a timing light to spark plug one and the battery, disconnect the vacuum advance hose from the distributor, and loosen the distributor hold-down slightly. Back in the day, we set VWs by ear all the time. What a dial back allows you to do is use the timing light advance to line the TDC marks up. If any of you not done this, here's my method that works well. To set the timing on a Chevy 305 engine, locate the timing mark near the harmonic balancer. There is a procedure for setting the ignition timing to the spec without a timing light. Remove your timing cover, RH side of engine on gear cover. the jumper wire was not a "trick" is was how the factory manuals explained to do it. The EEC will change the timing if it sees it as too hot/cold. Ignition timing is typically split into three types. This can be caused by variations in how the air/fuel mix fills the cylinder (mixture quality) and the mixing in the cylinder during each intake stroke. The timing chain has the important job of synchronizing the crankshaft rotation with the camshaft. The timing light is connected to the ignition circuit (mostly inductively) and used to illuminate the timing marks with the engine running. I have a bisi stage 1 cam in mine and it's set at stock but Justin at bisimoto says:. In this article, we will discuss simple ways to time your engine even without the need to use a timing light. With electronic ignition systems, individual cylinders [citation needed] can have their own individual timing so that timing can be as aggressive as possible per cylinder without fuel detonation. Hook up the timing light. Now when I shine the timing light I can see it. On older engines, loosen the distributor hold-down clamp enough so that you can turn the distributor, but not so much that it doesn’t require some effort to. Sometimes I put a timing light on it and may have to tweak it a tad, not much. If a dwell meter is available, that's definitely preferable to a gap measurement. Now you can shoot timing light thru inspection cover to set timing without the use of the clear timing plugs or getting a face full or oil and you have a mark that you can see very easily. The way to tell is if your timing light does not respond the way you expect to a change in trigger offset. Will An Engine Start Ok If The Base Timing Is Set At Tdc (0 Degrees)?. Set the A/R pointer to zero before setting timing with a timing light. as for ignition timing. Just turn the dial and turn distributor until the balancer reads 0. The PCM compares the number of 18X pulses to the number of 3X and cam pulses. In other words, the reading of the tachometer times 3 is actual speed. Re: 1988 EZGO 2pg Ignition Timing When I rebuilt my 2pg nothing on the timing plate was marked, I marked it with witness marks before I dissembled it. As you can see from the chart, most factors will change throughout the range of the engine operation. Ignition timing is like seasoning: some is good, but too much ruins the results. Then retard a bit, say 1/8 to 1/4 inch clockwise. Back in the day, we set VWs by ear all the time. Brown wire with a black stripe. Place gear shift lever in neutral position. To adjust ignition timing, loosen Camshaft Position (CMP) sensor housing bolt. In the diagrams down below I have included a guide to the Thick Film Ignition. After resetting the timing about 8 or 9 times (retarding the timing back by 1 or 2 degrees each time) I finally manage to get the car to go up a hill without pinking with the timing set at TDC. Use this to set the points gap so that the feeler guage will stay in there without holding it, but one touch looser makes it fall out. Remove the timing cover from the right side of the motor with a Phillips screwdriver or Allen wrench, depending on your specific model. Put the transmission back in neutral. As you cannot alter the timing angle the coil/flywheel clearance will have a little effect on the timing. To set this, rev the engine up to the rpm point that the timing should be completely in at. Be ready to set ignition timing right off the bat with the engine at 2,500 to 3,500 rpm. 0-liter engine is 6 degrees before top dead center (BTDC). Connect the + and - to the battery, and loosen the CPS bolt, but don't turn it at all! You're now going to set the ignition timing. According with the Haynes manual the settings wold be: static 11º BTDC, and at 4. ignition timing light. Materials Needed. I also don't know how anyone would have set timing without the fan removed. To set the timing on a Chevy 305 engine, locate the timing mark near the harmonic balancer. Seems simple, but 1/5 of builders will not do this. This is the mark you want to time the engine to. here are the timing marks - ignore the "I" on this diagram, this is for US spica models. If there is no oil vapor in the cap to indicate the seal has broken down, that you provide a few drops of light oil to the distributor shaft and inspect the reluctor for corrosion, that the vacuum advance still works (you can pull the hose and suck on it to. Super easy to do, and you will thank yourself for doing it this way when you go to hit the key for the first time!. The timing map for an SR20 is going to be too retarded for our engines. Got it to junee as put a timing light on number 1 cylinder and, if you call the 'ign' mark on the case 12 o clock the baancer tdc mark is at about 3 o'clock. Others figure they can throw in a new set of points, set the gap with a matchbook cover and drive on. The most common are the timing pointer, sticky mechanical advance, and the power source. Lack of proper spark timing can cause a different problem, One or more of the cylinders may misfire. Setting the ignition timing advance on an engine with a distributor style ignition system can be confusing if you don't know what you're looking at. Shut off the engine and check the fluid levels and inspect for leaks. I then shut it down, and disconnect the EST wire, (it's a SINGLE wire that is tan in color with a black stripe and is located just under the power brake booster/windshield wiper motor area). Ignition timing should have already been correctly set. This is done with a combination of initial advance, plus centrifugal or electronic controlled advance for engine speed, plus vacuum or electronic advance for engine loading and throttle effect. - Record the timing reading. Timing chain replacement is straightforward and provided the instructions in the service manual were followed, the engine should operate normally. Without precise timing, which a good timing chain in good working order provides, the ignition and camshaft timing will not perform in the precise sequence to complete a four-cycle combustion. And at this point you need it fixed. You should see the lamp light just as the TDC mark is below the pointer. If a dwell meter is available, that’s definitely preferable to a gap measurement. 1 and crank pully notch to TDC approx) guess what?. connect the vacuum advance and see if it surges or gains heat, pings, or seems sluggish or any other drivability issue and adjust the vacuum to suit. Make sure that the engine is idle and warmed up and that you have plugged the vacuum line to the distributor (points system) or set the vehicle into base timing mode (electronic. If you're timing the engine as part of a larger repair process (like replacing a timing belt), you'll want to start by getting off on the right foot -- make sure you can locate the timing marks (or notches) on the flywheel and cam. To set the timing after replacing the points and condenser, you'll need, no surprise, an old-fashioned stroboscopic timing light. It requires a test light or a voltmeterBingo. My hope is to get the timing close enough to start the car, and then adjust with a strobe light if necessary. All it 'wants' is a spark at a near-optimum time and a host of things can change this. Hi I am a new member to this site and need some advice on setting my points ignition timing on my 1976 350 sherpa. Many engines with worn timing devices jump time when they're shut off, which often causes a slight snap-back in engine position as the engine ceases rotation. Ignition timing, and your ability to set it as Willys intended, is dependent on correct assembly of 3 mechanical combinations: Flywheel to crankshaft: Due to the 2 special tapered bolts, the flywheel can only be mated to the crankshaft in 2 orientations. If you have a stock distributor and know either the timing at idle or the maximum advance at a given engine speed and you have a good timing light, you will have no trouble setting timing. Where exactly do I line up the mark on the harmonic balancer with on the timing cover. DO NOT CONNECT THE TIMING LIGHT WITH THE ENGINE RUNNING OR WITH THE IGNITION ON. Ignition Timing There are a number of issues affecting the ignition system that are common sources of trouble. Ignition Timing As you probably can guess, the timing advance curve for older Chevy V8’s was set up by the factory as a compromise. Adjust the breaker gap to. The way to tell is if your timing light does not respond the way you expect to a change in trigger offset. With the cable fitted and adjusted preparations prior to setting the ignition timing are complete. The speed of the timing curve is determined by the springs on your advance weights inside the distributor. Is the only/best way to set the timing with a dial-gauge 1. If you are provided with different timing set points and don't have a computerize ignition system, you should set your timing to Total Advance or at the highest RPM spec you are provided. You cannot set the timing via the distributor anymore. maxVac is the 8bit ADC value at which the MAP sensor no longer advances. Attach a voltmeter or 12v light between the distributor connection and ground, and turn on the ignition. I jumpered it and set it up to 12 btc. 035", and the ignition timing can be set by the width of the ignition points gap (. The distributor (or ignition system) also controls the electrical saturation of the ignition coil and the collapse of the electrical field strength, and thus controls the resulting spark energy intensity. If you are provided with different timing set points and don't have a computerize ignition system, you should set your timing to Total Advance or at the highest RPM spec you are provided. The best way to arrive at a suitable ignition curve for your engine is to use the Ignition Timing Factors Chart. All you will need is a paper clip, an ignition timing light and a 12mm spanner. Ignition Base Timing and Advancing Timing, How to set it and what it should be set at for better performance. It requires a test light or a voltmeter. Connect the timing light ground connection to a suitable grounding point. To set the timing after replacing the points and condenser, you'll need, no surprise, an old-fashioned stroboscopic timing light. But it is highly unlikely that when timing belt is broken on the move, that you get away without any damages to valves. They were generally set for timing in a special fixture, but can be set in this way too. To the best of my knowledge there are 3 versions of the 123 being used on E types, the 123 Tune that is programable via a lap top, the 123 Jag-6-R-V which should have its stattic timing initially set at 10deg BTDC(as per the instructions supplied with it) & the GB-6-R-V that should have the static set to TDC( as per the instruction. This will be your 0 mark. I can't do that as I'm working alone right now with no one to crank over the car while I run the timing light. Timing curves are typically set without the vacuum advance. If you’re using the Innova, clip over the spark plug wire for the #1 cylinder, which is the spark plug closest to the front of the truck. The distributor (or ignition system) also controls the electrical saturation of the ignition coil and the collapse of the electrical field strength, and thus controls the resulting spark energy intensity. Without these marks, a timing light simply can’t be used. Set the front cylinder TDC mark JUST on the backside of the timing hole. These cars will idle at lower speeds if the carbs are in good shape, but the water pump is very inefficient at lower rpms, and your ignition light will probably be on, so set idle at 900 to 1000 rpm. Then, bump the timing up a bit by ear until you hear ping, then bring it back some. If the light illuminates, you've done it right. Learning To Use the Timing Light. 0s is a time-honored trick to wake up the under-hood lump. If the number of 18X pulses are incorrect while the engine is cranking or running, the PCM will set a DTC. Adjust magneto timing accordingly. Set parking brake and place transmission in Neutral (M/T) or Drive (A/T). I'm timing a pretty stock 454 with non hei distributor, but it's kinda a general question as well. It can also be used when installing a new distributor. Once it's running (get the static timing right and it will) advance the timing to the point just below where it pings under full throttle load. Rotate the distributor until the light just comes on. Factory tells you to set a 1992 3000GT SL at 7 degrees before top dead center on the ignition timing. When both sets of points are open, a third and continuous sound will be emitted. The user can set the timing from 0 - 60° BTDC. The first step on how to use a timing light, you need to first see the timing tape and what it says. If an engine won't start and you don't know why, connect the timing light and crank the engine, checking to see that the light senses the pulse in the spark plug wire. If you don't have a ohmmeter, set the engine on the compression stroke, then remove the distributor cap and put some cellophane from a pack of cigarettes between the points. have the same problem? Yes. It seems to run pretty good even though, and will suffice until I can get a balancer on there. The timing light connects to the battery and coil-to-spark plug wire. Forget about setting a standard 850cc engine with a strobe. code 52 - knock sensor then this might be a good starting point. Setting the Diagnostic Jumper : Behind the left headlight is a blue plug where you can get 12 volts for your timing light. For 91 without a knock light, I would retard probably. Rotate the engine until the rotor points to the number one spark plug wire. Carefully done, it's rather accurate, easily within one or two degrees. Using timing light, ensure crankshaft pulley mark aligns with timing pointer, indicating timing is correctly set at 5 degrees BTDC. mark, have the engine warmed up, timing light in hand (set at zero advance if you have a programmable-advance timing light), and a 10mm socket wrench to work the diz clamp. So for instance if you wanted 38 degrees total at 3000 RPM you would set the light to 38 degrees, rev the engine to 3000 and line the TDC marks up. I broke my timing light and I need to set my timing. stroke) on no. You'd lose reliable ignition before you hit best timing. Beginning in the '90s, most manufacturers did away with a mechanical distributor and plug wires and instead managed timing and spark with the engine computer and an individual coil-on-plug (COP) or coil pack. Color coordinated leads are 4 ft. 020") or with an automotive strobe timing light after the flywheel is degreed in with timing marks. After reading Steves (JK TOWERS) comments about ignition timing for LPG I went out and bought a strobe light and proceeded to check. I consider the Hillbilly Willy technique to be somewhat superior, because nothing outruns the stopwatch. No timing light needed. Increasing it is useful with cams that prohibit low idle RPMs. A Harley-Davidson motorcycle engine ignition timing device which electronically determines piston top dead center positioning and the degrees of spark plug ignition before or after TDC to permit dynamic setting and monitoring of the engine ignition timing. Click on the other tabs, Performance Cam Profile and Radical Cam Profile to see ignition timing for other cams on the far right side of the page. Remember, the timing belt only keeps mechanical timing - that of the cams to the crank - it has no bearing on ignition timing. the jumper wire was not a "trick" is was how the factory manuals explained to do it. You won't need a dial back timing light to use it (they're expensive for a really good one) and you won't have to start "guessing" once the timing mark on the balancer starts "crawling up behind the water pump", off the top of the range of stock timing marks. The user can set the timing from 0 - 60° BTDC. All timing lights are somewhat different you may need to follow the timing light directions. Adjust magneto timing accordingly. If the number of 18X pulses are incorrect while the engine is cranking or running, the PCM will set a DTC. The timing cover should also be removed. With the idle set to factory spec, check the timing by observing the timing marks on the crankshaft pulley in relation to the fixed marks on the timing belt. If you mark the groove and white notch with some white paint it will show up when the strobe light hits it. For a long time it was the only way they were set. Fully retard spark lever on the steering column. Without precise timing, which a good timing chain in good working order provides, the ignition and camshaft timing will not perform in the precise sequence to complete a four-cycle combustion. Crank engine so #1 cylinder (front) is coming up on compression. The timing of an engine comes from the angle of the crankshaft that the spark plug fires before/after. Rotax points ignition timing Older Rotax Bosch points ignition aircraft engines require periodic maintenance and timing service to maintain their reliability. Features - 5 Different adjustable timing curves, 4 Different retard modes, Fully static time-able with built in LED light (Set the timing accurately without having the engine running), Broad range rev limiter (8,500 to 16,000), Increased horsepower & torque, Digital tach output (smooth & accurate), Increased spark energy, Improved throttle. I set my dual plug ignition timing to 36 degrees BTC using a gen-u-wine BSA degree wheel, with an assistant on the throttle and holding up the bike and me with the timing light. The first step on how to use a timing light, you need to first see the timing tape and what it says. Attach your timing light to the battery and put the clamp on the #1 spark plug lead. This direct link provides the timing of the valves during their opening and closing sequences. Using a timing light, place the pickup on #1 or #6 spark plug wire. How To Time An Engine Without Timing Marks. With an adjustable light set at 36 degrees, align the stock timing marks with “0” when the timing is. Rotate the engine clockwise and observe the valves on the number one cylinder. Super easy to do, and you will thank yourself for doing it this way when you go to hit the key for the first time!. I think that the reason for a timing light is that it allows you to see if your timing is perfect. When a properly adjusted ignition coil is running on battery and the roller grounds the timer segment, the coil will vibrate continuously and provide voltage to fire the spark plug. This allows for fine tuning on the dyno. Remove spark plugs. Remove that. I reduced the clearance to 3>4 thou and it works fine. If you bump up your timing then you'll need to use a higher octane fuel, usually 91 octane. Timing light. Then set the base timing at whatever the spec says such as the example 15 degrees in drive with ac off, etc. If you are provided with different timing set points and don't have a computerize ignition system, you should set your timing to Total Advance or at the highest RPM spec you are provided. In the middle of the page are 3 tabs. I want to set my initial timing. Static timing the engine and a proper sync and link may get it right most times but not always. I consider the Hillbilly Willy technique to be somewhat superior, because nothing outruns the stopwatch. Turn on your ignition switch. It is tangientially related in that the distributor rotor runs off of one of the cams - so if any mechanical linkages (say timing gear) are clocked wrong, that can create an issue. -Re-connect the vacuum line to the distributor. Setting the points precisely requires one of the timing fixture tools, a decent analog ohm meter, and a timing light. If the flywheel key has been sheared, then the ignition timing is affected. Plug numbering Left (Drivers side) 1,3,5 and 7, Right side 2,4,6, and 8. I jumpered it and set it up to 12 btc. I pulled the vac line from the dizzy to carb and plugged them. If you have vacuum advance,compression ratio,grade of gas your using,camshaft overlap,etc. Rolling roads are the ONLY way to set the ignition timing properly. Ignition Timing There are a number of issues affecting the ignition system that are common sources of trouble. I dont know where to look in link to see what the timing is set to. With a good timing light and an understanding of how to set timing, better performance is available at almost no cost. The trigger-activated timing light’s 60 degree advance dial makes it easy to read and adjust timing advance. We have to divide by two because our wasted spark ignition system fires the spark plug every revolution instead once every other revolution. You'd lose reliable ignition before you hit best timing. Hook the light to your front spark plug wire and point the light at the hole from the allen screw. The speed of the timing curve is determined by the springs on your advance weights inside the distributor. the digital timing lights will show a biased reading because of the multiple discharges from the msd. If your engine does have an OEM retarded camshaft timing set, you may gain some power at low rpm by switching to a non-retarded camshaft timing set, but the improvement is unlikely to be dramatic. The Sniper differs from the Terminator in that it has no EST/SPOUT signal--only a points output. Search a little more and you'll discover basic rules of thumb for how much timing to retard per pound of boost. I can’t figure it out. Turn ignition key off. Magnetos are set with a buzz box which works off the points and you can set them very accurately with these. This will be your 5" mark that you set base timing to. Normally, a chain or belt device allows this torque reversal without harm. You'd lose reliable ignition before you hit best timing. Then retard a bit, say 1/8 to 1/4 inch clockwise. Sometimes in a pinch if the distributor has been moved and you don`t have a timing light handy,you can go by "ear". For a 5000 lbs. Now rev your engine up to about 3,500 RPM (to insure that the mechanical weights are fully activated) and watch your timing mark on the harmonic balancer. The ignition timing was set up in the ECU by shutting off the injectors and cranking the engine while observing the timing marks on the crank pulley. You should either have a digital readout or a dial to read. Carbide Grit Hole Saw Assorted Set, 9 Pc. The chart that comes up is for Mild Cam profiles. Same jetting I ran before it was rebuilt. Ignition Timing There are a number of issues affecting the ignition system that are common sources of trouble. Your instructions for static timing call for this in the timing hole. Can you set the timing without a timing light? And if so how. It's insurance to get it right. If you align this marks without an advance timing mark you are setting the timing at zero degrees. Set timing to 10° BTDC. All you will need is a paper clip, an ignition timing light and a 12mm spanner. In addition to checking ignition timing, you can also use the digital display to advance or retard timing from 0-90 degrees, and check tachometer, voltage, and dwell readings. Tuned and modified engines have different. How to Set Ignition Timing -- 1 of 1 Heres a step-by-step on how I set the initial ignition timing. Few systems on your kart are more critical, or less understood, than the ignition system. In a classic ignition system with breaker points, the basic timing can be set statically using a test light or dynamically using the timing marks and a timing light. With a good timing light and an understanding of how to set timing, better performance is available at almost no cost. couldn't have dialed it in without this light. The converse thought -harbored by the less-trusting- is that using a timing light requires all of the markings to be indexed precisely to be valid. All timing lights are somewhat different you may need to follow the timing light directions. Beginning in the '90s, most manufacturers did away with a mechanical distributor and plug wires and instead managed timing and spark with the engine computer and an individual coil-on-plug (COP) or coil pack. Here is the easiest way to set the timing, and no timing light is needed. With the engine running and a timing light connected, adjust the timing to the desired Total Timing. code 52 - knock sensor then this might be a good starting point. I do know there is no advance or retard above 10,000 RPM. Hook the timing light's power cables to the battery posts. " Make sure all of the cables are clear of all moving parts, such as the fan, belts and pulleys. So for instance if you wanted 38 degrees total at 3000 RPM you would set the light to 38 degrees, rev the engine to 3000 and line the TDC marks up. I think on your '97 EVO, the two (2) "dots" are the 20* advance mark. I have always tailored my ignition timing on 1960’s and 1970’s cars to my driving style. So I am in the process of timing the CB360 with the Hondaman Ignition Kit installed. Set the rotary dials to achieve the desired timing curve (Figure 3 and 4). You'd lose reliable ignition before you hit best timing. For a long time it was the only way they were set. when you finish setting the timing and connect the vacuum hose (or remove the jumper) make sure your distributor is advancing. For convenience, the 5568 uses detachable cables, a definite advantage if you need to attach different. When setting the timing up for the first time, the instructions say to verify the timing is set to 15° under just cranking power, by pulling the fuel relay so the car won't start. Be ready to set ignition timing right off the bat with the engine at 2,500 to 3,500 rpm. For example, you add 5° to the trigger offset and see no change on the timing light, then try stopping and restarting the engine. With electronic ignition systems, individual cylinders [citation needed] can have their own individual timing so that timing can be as aggressive as possible per cylinder without fuel detonation. you will need one or the other as well to set the total advance. I have now got it set to approx 20 - 25° BTDC. As a result, one of the specific functions of the (ESC) module is to; advance or retard the timing of the ignition system. Turn the Slope control pot. hook up the timing light (the pick-up thingie goes on #1 spark plug wire, the wire closest to your timing belt cover, furthest from your distributor). As RPM increases, the engine requires different ignition timing due to a list of changes that occur to the air/fuel mixture entering the cylinder. after reading above thread from mudferret posted in 2012 I have exactly the same problem with my timing when I set timing to 3 mm btdc my stator is fully advanced (fully clockwise) with no more slot to adjust further I am aiming to. If your ba lancet had timing tape on it you would adjust with a regular timing light until the line matched up with the 8 degree btdc line. Stow the timing light, and then restart the bus. When the points are OPEN, the meter will register 12 volts or the test lamp will light. Do I need to remove the distr. I prefer putting a timing tape on the balancer and using a conventional rather than an adjustable timing light. I went to do a test drive, but couldn't pull away. I've done my bike this way numerous times with good luck. Next, remove the drive belt components before unbolting the timing chain cover. I feel like if I try to roll into the power I have to wait for it to hit. That’s it! Don’t forget to tighten up your distributor clamp bolt. When he timing is not set properly the car may experience. Whats the best way to set ignition timing? Exhaust is probably too loud to hear pinging, so thats out. The average home mechanic can complete this procedure in a few minutes. In addition to checking ignition timing, you can also use the digital display to advance or retard timing from 0-90 degrees, and check tachometer, voltage, and dwell readings. Before adjusting the engine timing, ensure that the breaker point contacts are in good shape and the gap is set to. If a dwell meter is available, that's definitely preferable to a gap measurement. (Set the advance on the timing light to 32 degrees and then align the "0" degree timing marks on the engine at 4k RPM). Now rev the engine just a little while observing the timing marks with the light. 5 degrees, so my timing was set at 15. How to Set Ignition Timing -- 1 of 1 Heres a step-by-step on how I set the initial ignition timing. Listen for the electric fuel pump in the fuel tank to make a buzzing noise when the ignition is turned on (you may have to open the gas cap to hear it). Then set the engine to tdc and drop it in and it should be ok but its not working. So what is timing? In a nutshell, timing or 'ignition timing' relates to when the sparkplug is fired in relation to piston position. With electronic ignition systems, individual cylinders [citation needed] can have their own individual timing so that timing can be as aggressive as possible per cylinder without fuel detonation. I consider the Hillbilly Willy technique to be somewhat superior, because nothing outruns the stopwatch. When finished, the timing as viewed on the laptop, should match what you see with the timing light, at all RPM. Spark, 15,000 to 20,000 volts, is created at the engine's ignition coil. A strobe light is the right tool for this job as it fires with the spark on number one cylinder and allows the ignition timing to be adjusted to the correct mark. I aligned rotor with #1. I know the idle should be set to 750 but I have mine at 900. A timing light is the most common way to check ignition timing. That is, as the rpms increase, the ignition advances proportionally, in order to give the fuel combustion a chance to get started sooner, and burn more of the fuel mixture. If you retard the static ignition timing to try to deal with this, then you are over-retarded for the lighter loads on flat ground, and you have less power and poorer fuel economy and possibly alot of heat in the exhaust, turning your pipe blue. Because you have the light hooked up to your spark plug means that it has current passing through it every time your spark plug fires, making the light go off and on, creating the strobe effect. Alfa 4-cylinder Timing Marks P is correct for setting tdc, but the rotor should be pointing to the front of the car at least (ignore 3 or 4 o clock at the moment, main thing is it is pointing front to roughly where the no 1 cyl spark lead would be on the cap (no 1 cylinder is front of the engine ) If not. As a result, sophisticated electronic ignition systems can be both more fuel efficient, and produce better performance over their counterparts. Put the engine in "diagnostic mode". According with the Haynes manual the settings wold be: static 11º BTDC, and at 4. Designed for high-powered ignitions and magnetos, it may not work with some stock ignitions. Then the timing Pin is inserted through hole on front side of timing gear cover and engine turned by crank until pin falls into recess on face of. On older engines, part and assembly tolerances were sometimes looser than they are now. Either attach your strobe light to no 1 plug lead, or (if you don’t have a light) remove no 1 plug lead and fit a spare spark plug to it (with the body of the plug suitably grounded to the engine). A timing light is the most common way to check ignition timing. There is a procedure for setting the ignition timing to the spec without a timing light. I'm timing a pretty stock 454 with non hei distributor, but it's kinda a general question as well. After resetting the timing about 8 or 9 times (retarding the timing back by 1 or 2 degrees each time) I finally manage to get the car to go up a hill without pinking with the timing set at TDC. The initial Page 5/27. This is the reason for an automatic, mechanical, vacuum or electronic, timing advance. Now, gently turn the distributor back (clockwise) until the light goes out. Now shoot timing light at tab, and adjust dizzy to give you the timing spec thats listed on the lable under hood (most of these cars are 0, or 2* btdc) Now kill engine, hook up the bypass wire. Another nice features allowed by the digital circuitry include the ability to compensate for a bad temperature switch, a smoother rev limit, customized rev limiters and. This will be your 0 mark. Believe the timing light above all else, it's always the real timing (if there's a discrepancy). Final timing may be checked and set dynamically to compensate for normal production tolerances in the timing rotor, camshaft indexing, flywheel marking, etc. I've set it back to 14 degrees and may try advancing it in steps until it pinks. The ignition timing is adjusted with the slotted screw/pot in between the two extremes. - Record the timing reading. I have always used this static timing method, as it is just as accurate as a timing light, and the engine does not need to be in running condition. 3 engines have adjustable ignition timing. Its a single wire and can be a pain to get two hands onto it. i put a timing light on it and the car was 4 degrees AFTER tdc TOTAL timing. Can you set the timing without a timing light? And if so how. Depending on your distributor and engine, you may need to set timing at various depending on engine RPMs. I can’t figure it out. The results at part throttle are amazing. Ignition Timing Toyota 2e Engineat least 3500 RPMs. To set the timing on a Chevy 305 engine, locate the timing mark near the harmonic balancer. Basically the tech plugs in the scanner, connects timing light, jumpers two pins on the diagnostic port in the engine bay, tech will raise RPMs to 1000-1500 RPMS for several seconds, verify RPMs return to regular idle speed and reverify timing. It requires a test light or a voltmeterBingo. My 228" GMC six runs best when set to 6 degrees A. Sure on both?. When both sets of points are open, a third and continuous sound will be emitted. It's different from ignition timing,it's got to do with when your valves are opening and closing. GT550 set the ignition timing without a dial indicator? Post by TRC » Sun May 08, 2016 12:33 am Might be a dumb question but is there a way to set the ignition timing without using a dial gauge indicator (and perhaps having to remove the tank?). Static is is the pre set advance of the ignition that is set without any influence from vacuum or centrifugal. Carefully done, it's rather accurate, easily within one or two degrees. For better performance and gas mileage, advance timing about 3 degrees faster than factory setting. For mild cams, an idle ignition timing advance of approximately 16-18 degrees will do. ( I had 30 deg). If you use the drill method, remove the spark plug but still leave it attached to the HT lead and the plug threads grounded to the engine casing. because of their lack of accuracy with the light signal bouncing around and scatter etc. Timing chain replacement is straightforward and provided the instructions in the service manual were followed, the engine should operate normally. Once the timing is set the distributor fires each consecutive spark plug at the same number of degrees. Hi from a newby! I recently bought a 350 classic before they are no longer available. Results of which can be disastrous. (5) Check curb idle speed. The engine has a thunderbolt IV ignition system with a two barrel carb. As you can see from the chart, most factors will change throughout the range of the engine operation. It works, but a timing light costs $20 at Harbor Freight and is easier to do in the driveway. It runs fine and all, but I'm still dialing stuff in. In order to ensure the timing is correct on a mechanical fuel injection pump, first rotate the engine to the top dead center (TDC) and engage the TDC timing pin with the camshaft gear. Attach a voltmeter or 12v light between the distributor connection and ground, and turn on the ignition. With a good timing light and an understanding of how to set timing, better performance is available at almost no cost. For 91 without a knock light, I would retard probably. Back in the day, we set VWs by ear all the time. With points distributors this gets progessively worse as the heel of the points wears and the gap closes retarding the ignition. I prefer putting a timing tape on the balancer and using a conventional rather than an adjustable timing light. Goto TDC slide CAS in, do bolts up lose. as for ignition timing. The distributor is a replacement, but since car runs well did not bother modifying it. Sometimes in a pinch if the distributor has been moved and you don`t have a timing light handy,you can go by "ear". Re: Ignition Timing and my 454 not at all at 475. F20b Ignition Timing. In order to ensure the timing is correct on a mechanical fuel injection pump, first rotate the engine to the top dead center (TDC) and engage the TDC timing pin with the camshaft gear. The MSD Timing Light is something no performance tuner should be without. Testing the stator without the diode. Then move it forward a couple degrees, and finish the procedure I outlined, or if you have a timing light you could hook it to the front cyl, that will be the skinny lobe on the breaker cam in the nosecone. Ignition timing is like seasoning: some is good, but too much ruins the results. Once it's running (get the static timing right and it will) advance the timing to the point just below where it pings under full throttle load. The timing light connects to the battery and coil-to-spark plug wire. You need to understand the difference between the two operations, cuz it sounds like you kinda have 'em mishmashed. So if U advance or retard the cam gear U can shift/move the power band around. Features - 5 Different adjustable timing curves, 4 Different retard modes, Fully static time-able with built in LED light (Set the timing accurately without having the engine running), Broad range rev limiter (8,500 to 16,000), Increased horsepower & torque, Digital tach output (smooth & accurate), Increased spark energy, Improved throttle. Remember, your engine does not CARE what number appears on the harmonic balancer or a dial-back timing light. Place gear shift lever in neutral position. But set the ignition timing? NO WAY they are scared stiff of it. The vehicle is a 1982 Ford E350-based 11,000 pound 24 ft. This can be caused by variations in how the air/fuel mix fills the cylinder (mixture quality) and the mixing in the cylinder during each intake stroke. Got it to junee as put a timing light on number 1 cylinder and, if you call the 'ign' mark on the case 12 o clock the baancer tdc mark is at about 3 o'clock. Suitable for checking ignition timing on automotive, agricultural and marine. Connect the timing light ground connection to a suitable grounding point. Also, verify that the rotor gap to the distributor body contact points is between. You can check it with a Timing Light. Then back off 2*. Static timing is the most basic of all. Locate the 10* BTDC mark on the cover (factory setting) and turn the distributor slightly until the "notch" in the pulley lines up with the desired timing. It can also be used when installing a new distributor. Hi today I tried to set the timing on the car but it is running very badly. I also don't know how anyone would have set timing without the fan removed. Is it correct to disconnect the vac advance line to the distributor, plug the line, then check and set timing while engine idles at around 550-60. Will An Engine Start Ok If The Base Timing Is Set At Tdc (0 Degrees)?. It requires a test light or a voltmeter. This signifies the point at which the spark would have been introduced into the cylinder. Attach your timing light to the battery and put the clamp on the #1 spark plug lead. In this case, my marks aligned at 15. Waiting on my neighbor to get his timing light. Today, Regular gas is rated at 89 octane, not the 68 octane the engine was designed for. If you™re using an adjustable timing light, set the light to 36 degrees advanced. IGNITION TIMING NOTE:Timing instrument should be connected to No. How to Adjust Timing: 12 Steps (with Pictures) - wikiHow Connect a timing light to the engine and check the ignition timing. In this article, we will discuss simple ways to time your engine even without the need to use a timing light. Not really ideal when you are on the edge of the engines limits. According with the Haynes manual the settings wold be: static 11º BTDC, and at 4. Ignition Coil How a coil pack works. Setting the ignition timing advance on an engine with a distributor style ignition system can be confusing if you don't know what you're looking at. Loosen the the timing plate screws with a slotted screwdriver, and turn the timing plate to adjust the timing. Using a timing light, place the pickup on #1 or #6 spark plug wire. A 12V test light With the cars ignition on and the distributer installed and the cap off note the position of the number 1 lead and the rotor button position, wind over the engine in its normal direction of rotation by hand until the timing mark on the crankshaft is on the mark you wish to set your initial timing (not at the tdc mark) at and. Unfortunately, ignition timing changes over time as you drive your car. If using a chain tensioner, make sure you fit this. automotive ignition timing light was connected to the spark output to read the position of the degree wheel pointer to determine exactly where the coil fires in relationship to crankshaft position. -The timing marks put on the case to use the timing light would be +- 2 deg. That is, as the rpms increase, the ignition advances proportionally, in order to give the fuel combustion a chance to get started sooner, and burn more of the fuel mixture. With the timing controlled by the engine control module, you can't set the timing on these engines with a timing light. 8) Direct the timing light at the timing marks of the engine,and press the trigger: the timing light should start to flash,illuminating the timing marks. Had to slightly modify my gauge but that’s fixed now. Setting the ignition timing. your plane/jane light will set the timing fine. Connect the timing light. Very easy to get close to factory timing without a timing light on a CA18 anyway. Hook the light to your front spark plug wire and point the light at the hole from the allen screw. here are the timing marks - ignore the "I" on this diagram, this is for US spica models. While you are at it, also inspect your spark plugs to ensure they are new. Hope this helps some. Reactions: Stone2222 and LTsGarage. I've set it back to 14 degrees and may try advancing it in steps until it pinks. I am installing a Pertronix unit on my '66 Series 1. I have now got it set to approx 20 - 25° BTDC. For example, if value is HIGH, pulseIn() waits for the pin to go from LOW to HIGH, starts timing, then waits for the pin to go LOW and stops timing.