Setting Ignition Timing Without Timing Light


The ignition timing for the 1988 Ford Ranger with a 2. It's worth knowing that there are these different types of vacuum take-offs on the HIF carbs, as if you did try to set the timing without disabling the vac advance first using a strobe, it could result in the timing being miles out because of the effect at idle. Timing is everything, and without a proper timing curve, every thing else goes out the window. If set at 15 then you will be 5 degrees advanced through out the whole timming map. With the ignition system n the vehicle powered up, rotate the distributor to the RIGHT, to confirm the light is bright, it doesn't take a lot of rotation. Very easy to get close to factory timing without a timing light on a CA18 anyway. Cam timing is what determines when the valves open and close with respect to the position of the pistons in their bores. We offer a plethora of Advance Timing Light for your vehicle needs. Setting Side Mount 8N Timing, by BeeMO. I used a light on it, but on stock engines I generally just go by ear. This is a little how-to for setting the initial ignition timing on a small block Chevy before its ever been run. Not really ideal when you are on the edge of the engines limits. Having previously had a good running car with timing set to 4 ATDC as per the pulley marks, I set the engine to TDC, marked the dizzy/pedastal up and pulled it apart. Point the timing light at the timing marks and pull the trigger, as the flashing light makes the numbers appear as if they are stationary. Thats from memory so i think its correct!. The Xenon Timing Light allows the dynamic ignition timing to be set. If the timing is too far retarded the most likely symptom would be a hesitation lack of power and very poor fuel economy. When setting the ignition timing, the points gap must be set first. Probably a Snap-on light will work well if you can afford one. If you set timing to second from the left, you are at 0 (zero). There is a procedure for setting the ignition timing to the spec without a timing light. Static timing is a poor man's way of setting your timing. There's no reason this shouldn't start and then as stated us the timing light to set correctly. Now, reconnect the vacuum advance and have a friend bring the motor up to 4000 rpms and hold it there. This is a look into the task of setting ignition timing on your TR2, TR3, or TR4. Hi all, I checked the timing with a light on my newly installed engine and it looks like is is firing at about 10-12deg. total timing and vac advance is something you will have to work with for you engine, i make the slots in the dist shorter by welding them to get no more than 32degs total mechical, vacum advance i never played with much just to get a fair idle with a bigger. First – When you hook up the timing light to the #1 spark plug wire and it flashes a light beam onto the timing tab, it’s showing you when the spark occurs, NOT when the ignition occurs and the explosion that starts to push the piston down the cylinder. Sometimes in a pinch if the distributor has been moved and you don`t have a timing light handy,you can go by "ear". DH, We always used a test light to set the timing on mags with impulse couplings. Right, i'm not refering to the cambelt. This is the mark you want to time the engine to. Without an advance light you can't change timing to your own specs. The most common are the timing pointer, sticky mechanical advance, and the power source. No matter what you're driving, we have the right Craftsman Timing Light for your automobile. If you do not have the best timing light, it may cost you a lot of money and trips to the mechanic when your vehicle has trouble? The problem could be as simple as the fact that merely the ignition timing is off. I timed it with a light as said in the book, and got it looking right according to the test light. The timing map for an SR20 is going to be too retarded for our engines. He said the dual diaphram 68 dist was not the one to use. Put the transmission back in neutral. What is claimed is: 1. Toyota Previa & 1992 Supra Ignition timing adjustment connector. Ignition timing on 1. Find out why Close. Now, rotate the distributor COUNTERCLOCKWISE (CCW) until the test lamp goes OUT. He told me to set the timing at idle to 10 btdc. With the ignition timing at idle set at 5 degrees BTDC I'm getting 40 degrees at 3500 with vacuum and around 10 degrees without vacuum. The timing mechanism of the distributor must make timing changes based on these factors. Timing chain replacement is straightforward and provided the instructions in the service manual were followed, the engine should operate normally. The same thing occurs at steady-state highway cruise; the mixture is lean, takes longer to burn, the load on the engine is low, the manifold vacuum is high, so the vacuum advance is again deployed, and if you had a timing light set up so you could see the balancer as you were going down the highway, you'd see about 50 degrees advance (10. It is a multipurpose tool capable of measuring engine RPM, checking battery voltage and measuring secondary firing voltages and burn times. php on line 143 Deprecated: Function create_function() is deprecated. What is the. Hi All, Ive just got my TR6 back on the road after 16 years (the last 3 years doing a full body off rebuild). Start engine and run at normal idle speed. COM MUSTANG PROJECT With this Manual you will: • Understand timing basics • Prepare your car for a tune up • Set the timing without a timing light or timing marks! • Trouble shoot rough idle and tim-ing problems • Enjoy a better. Ignition timing is also used in traction control systems I believe to modulate engine torque. Engines were set from the factory to pass emissions, so the factory setting probably isn't the best for performance. can you help me guys. Without disconnecting anything, start the engine, and turn the distributor to synchronize the engine's initial (idle) timing using a timing light. Timing, timing the Rotax 503 DCDI aircraft engine, Rotax aircraft engine rebuilding manual, for the 503 Rotax points ignition aircraft engine. Timing is everything, and without a proper timing curve, every thing else goes out the window. At this point, you can use a timing light to confirm that the initial timing is where you set it, and then check the timing from idle to 3,500 rpm in 500 rpm increments. Hook the inductive pickup for the timing light to the #1 cylinder plug wire (front cylinder on the driver's side on a small and big block Chevy). I hesitated for a while on what car to build until I saw a gorgeous 1927 Delage at the 2012 Monterey meeting. For any vehicle with adjustable ignition timing, there is a correct method. Our engines are engineered and built solely for marine duty. MSD inductive timing lights are designed for the racer or professional who needs a timing light that is tough, easy-to-use, and extremely accurate. Setting the timing is normally an easy task, but sometimes the manufacturer's timing marks are missing or damaged. Then, SLOWLY rotate the distributor counter clock-wise, until the light just goes dim. This article will be especially helpful on non-stock engines or engines with a non-stock distributor. two light-tension springs would. I try setting timing without a light but when I recheck it after it's always out so I just use the light. – December 1, 2011 – The new Ultra-Light Timing Light (EETL500) from Snap-on is more than a device to set timing. Turning the distributor does not change ignition timing, but getting it in the right spot is very important. I have worked on a lot of dist. In fact it will work on any cylinder because as each plug fires it has to be at TDC plus the advance or retard for that cylinder. First of all you cannot correctly time an engine without a strobe/timing light of some kind which is reliable, you cannot correctly time an engine without markings on the pulley to establish where the. Ditto with the points, whenever I use a gauge to set them and then check them with a dwell meter they are off so I just use a dwell meter, I find it easier with the meter anyway. high lift cam and ignition timing. Your instructions for static timing call for this in the timing hole. Engine Timing Light with Spark Plug Tester,Inductive Timing Light Gun Timing Light Ignition Testers Engine Ignition Coil Tester for Car Motor Motorbike Vehicle Motorcycle Marine Lawnmower. With the ignition switched on, rotate the crankshaft slowly until the test lamp just lights, indicating the points have opened. Static timing is used to get the engine running correctly so that the the strobed timing can be set. the ignition timing of the engine is simply as shown on the dial of the timing light. Base ignition timing is not adjustable on any engine. OR, I can set the advance to the spec called for and set the timing marks to 0 degrees--and they'll be right on the money. The table in the service notes has a column "Ignition timing to be set at" which has the figures for exactly that. It's just all over the place. 2019 Hyundai Accent SEL Sedan Auto 1. By Bob Angel Some engines (such as the McCoy 60) almost require that the timer be locked down instead of being advanced and set “by ear” each time they’re started. Simply mark or write down where the slack is removed, rotate the engine CW until the slack is again removed and the difference is the amount of slop in the timing set in degrees. The timing of the spark is measured as the number of degrees by which the crankshaft is short of. With the cable fitted and adjusted preparations prior to setting the ignition timing are complete. Support Articles » Technical Articles » Other Tech Articles » How To Check and Set Up Base Ignition Timing How To Check and Set Up Base Ignition Timing This step occurs after ensuring that your base ignition settings are correct and the car starts, but before actually taking the car for a drive or presenting load to the motor. your plane/jane light will set the timing fine. I dont have a timing light. Once you close the window, the ignition will go back to whatever is in the igition tables plus any compensations. a) 866 080 for use with or without battery, limited to minimum of 12W consumption b) 264 870 for use with or without battery, no limit of consumption Ignition timing:. The timing is set by using a dial test indicator as described in the manual. Base ignition timing and timing advance are controlled by the Powertrain Control Module (PCM) Because a conventional timing light can not be used to adjust distributor. Even though your engine may be antique, that doesn't mean it can't be a great performer. In the case of the normal way to time your engine that reference mark is not really a mark, it is the hole in the left engine case - you center the timing mark in that hole. If it is say, 8 deg, how can I adjust it to 14 or so without moving the distributor and affecting the total timing? You lost me when you said to set. I am working on an article about using a timing light to check for improper ignition timing. The timing light flashes every time the spark plug in the No. 2) Retarded ignition timing In theory a vehicle with electronic ignition should never have to have the ignition timing adjusted or set unless the distributor is removed. It would just flash the light when the spark plug fired. Many people mix up ignition timing, valve train timing and base timing all the time. The Craftsman advanced timing light illuminates timing marks, so you can adjust your engine's ignition time to manufacturer specification or your custom preferences with ease. I have a pertronix installed in my distributor, but I believe the process is very similar to if I still had points. Timing Your Motor Without A Timing Light or, Finding Its Sweet Spot Rick Pacholski How To Set Ignition Timing. What seems strange is that my timing setting retards or drops about 3 or 4 degrees whenever I remove the TE1 and E1 connector. Base timing is the ignition timing without computer-controlled advance. Shop for Mt2261 Tach Adv Timing at discounted prices! For Porsche 911 2014-2015 Set Pair of Front & Rear Disc Brake Pad Set Racing For Porsche 911 - $1,199. How can I set the timing of my 1977, 350 chev. I specifically stated that with a timing light, my timing mark is showing past the "T" to the RIGHT. if you don't have any advanced numbers there is a timing tap you. From my experience setting the timing with the timing light on euro motors is a waste of time due to the fact that they were designed to run on leaded higher octane gas and things were different in general. after replacing my timing chain on my 83 230CE I decided to set my ignition timing. > Should I be looking at the carb as a suspect in this. This works to a point, until you get too much advance or too little advance in the system. while trucks running. This allows you to read the amount of advance generated by different amounts of vacuum from one to about 23 in. first of all use a advance timing light so you can see were the timing is at all RPM,s, on the out side of the base of the distribitor you will find harvester part numbers and these can be matched to the harvester or IT&T manuel it will tell you of the advance plate in the distribitor and were to set it i have seen them from 36 to 42. You may go just a little too far. The second to get the best from an unknown quantity without costly damage - a running setting. Much like ignition base timing, the more vacuum advance timing you have, the better your performance. So for example, if you MBT out at 35 degrees at 3k rpm, then for maximum efficieny you should be around 50 degrees during very light throttle at 3k rpm. loosen up the distributor and hook up a spare spark plug to the #1 plug wire. For most of our older British sports cars, however, “static” timing is specified. Timing Adjustment Follow these steps to set timing to factory specs. Setting Engine Timing. When setting the timing on a CDI with a curve like this, you want to set your idle timing somewhere in the middle of the scale. To set timing advance when your engine has no degree scale, simply set the advance on this timing light and align the timing mark to the TDC indicator on your engine. If the engine doesn't run well with it set properly, it either wasn't set properly or there is something else wrong with the engine. Ignition timing is like seasoning: some is good, but too much ruins the results. How do I measure ignition timing? The spec for this car says the timing should be 5 degrees ATDC at around 900 RPM. For any vehicle with adjustable ignition timing, there is a correct method. To adjust the distributor position, you need a 17mm wrench that can reach the hold own bolt. I do not have a timing light in order to set it to 6 degrees, and I have no money to buy one and I don't know anyone who has one. IGNITION TIMING SETTING INSTRUCTIONS: Your Honda Civic has a service connecter located under the passenger side kick-panel. By Bob Angel Some engines (such as the McCoy 60) almost require that the timer be locked down instead of being advanced and set “by ear” each time they’re started. See Setting_The_Crank_Reference on page 25. Setting Ignition Timing Curves Ideal ignition settings will allow your engine to run the maximum amount of timing at all engine speeds without detonation. Advance Timing Light. Carefully done, it's rather accurate, easily within one or two degrees. I was working on my new old bike this evening, trying to sort out a hard start issue, when I discovered that at even at maximum retard on the ignition plate, the timing was still at full advance at idle. The timing setting for all of the 3. Set the initial timing at 12-14 degrees if you're using premium gas 8-10 for regular. Setting the ignition timing on a 350 engine means you synchronize the rotation of the distributor with the rotation of the crankshaft. I also have a big blk in my hot rod which is advanced 36 degrees. Hang out at any race shop or racetrack for a while and you’ll see somebody setting the ignition timing on an engine. PROPERLY SET TIMING ON CLASSIC 65/66 MUSTANG! STEP-BY-STEP DETAILED INSTRUCTIONS WWW. Such that for a standard n/a spec its 25 deg at 3500-4000 RPM. If it does not hold vacuum, replace. Timing Light Finish Black Timing Light Material Plastic Works on Computer-Controlled Ignition Yes Works on DIS Ignition No Works on Electronic Ignition Yes Works on Points Ignition Yes PowerSports Place Part Number: FLA-FR1001 We use UPS and Fedex for most orders. TEC Ignition Coil install for Honda/Acura. In this regard I have three questions: 1. so i have no timing marks and my crank pulley doesn't appear to have any marks on it either. This is a little how-to for setting the initial ignition timing on a small block Chevy before its ever been run. At least for me it is. There is a procedure for setting the ignition timing to the spec without a timing light. 9 dodge 360 gas stock engine for my slt larrame 1500 THANK YOU. So we can choose an ignition timing value that the engine will be happy running at, let's say for argument's sake, 15 or 16 degrees. Don't rev it up or you will not get an accurate timing reading/adjustment. I am going to switch to 87 octane and would like to set ignition timing at recomended 6 deg instead of 10 deg I have currently. Turns out it was set to 0 BTDC even after Fourways had "tuned" it for me. I am working on an article about using a timing light to check for improper ignition timing. The second mode, is EST, which the computer has control over the timing (during normal operation). Turn advance knob to desired degrees advance setting. Just hooked up the wires on the light, revved it up till it didn't advance any more and adjusted the distributor. If it has an electronic ignition you'll need a programmer and if that's the case you don't really need the timing light and more than likely your car doesn't even have timing marks. com with the tag timing. The IGTM-2000 provides an easy means for data acquisition systems to collect real-time ignition timing. But I've found some conflicting answers. Which I think has to do with the relationship of the Location of Peak Pressure and the crank angle for maximum mechanical advantage, which seems to be dependent on the ignition timing and engine speed. The initial timing connector is a 4 prong unit with white jumped and black lead. Congratulations! You have just set your own ignition timing. Search a little more and you'll discover basic rules of thumb for how much timing to retard per pound of boost. Remove the vacuum hose from the distributor advance unit. (turn distributor) Switch engine off. Good engine performance is accomplished, among other things, by good valve timing, proper carburetor mixture, and accurate ignition timing. If you set timing to second from the left, you are at 0 (zero). How To Use A Timing Light - posted in Engine, Transmission and Tuning: This isn't written by me, its written by one of the forums technical experts - dklawson. A '94 Silverado probably does not have a vacuum ignition advance. With a dial back timing light, what we can do is set any amount of ignition timing in our ECU. On 3/31/2015, John Twist wrote: "The distributor has three distinct functions. Setting the timing without any marks is not difficult with the right information and a few common tools. It is set when the engine is built, aligning them to. I am going to switch to 87 octane and would like to set ignition timing at recomended 6 deg instead of 10 deg I have currently. In this regard I have three questions: 1. When a specific engine speed (other than "static") is given, or for electronic ignition systems, timing must be done using a stroboscopic timing light. If you align this marks without an advance timing mark you are setting the timing at zero degrees. Now, reconnect the vacuum advance and have a friend bring the motor up to 4000 rpms and hold it there. Settings/TunerStudioMS. I have a pertronix installed in my distributor, but I believe the process is very similar to if I still had points. You put it into setup mode when setting the idle & CO. On many of the newer motorcycles you just can't do it without major modification, but on almost all points ignition machines and a lot of electronic ignition ones, you can. This sound *** backwards to me. Without an expensive timing light you will not be able to accurately measure the advance, but it should be around 40º at 2800rpm. DISTRIBUTOR TIMING: It is from the Distributor that the ignition Timing is set, the setting in turn is controlled by the relationship of the position of the piston to when the spark occurs. But I've found some conflicting answers. If, after setting timing, the vehicle is showing symptoms of untimed, it is recommended you consult a certified mechanic, such as one from YourMechanic, for further diagnostics. If it is slightly retard or advanced. Many people mix up ignition timing, valve train timing and base timing all the time. 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. Make sure you have the timing belt cover installed (or at least the lower part around the crankshaft pulley) 2. Setting the static timing of a Boyer will get you into the ball park good enough to start the engine but not the optimum timing. Start the engine and set the engine speed at 1300 -1500 RPM. If the throttle responce is sluggish, first double, double check the static timing is ok, then replace all the vacuum hoses. The ESI 130 Self-Powered Timing Light comes with a customer rating of 4. With the ignition switched on, rotate the crankshaft slowly until the test lamp just lights, indicating the points have opened. if you need to know your advance there should be numbers on the timing tab or balancer. I wrote this "how-to" after my first adventure in advancing the timimg on Mickey, my '94 Laguna Blue -- thanks to some encouragement and moral support from both the San Diego Miata Club and Keith Tanner of Miata. If you have a single vacuum distributor, there is no need to remove the vacuum line to static time the distributor. the truck runs decent but has a rough idle and low power, so i was told to try advancing the distributor by turning the dist. ( Which, by your screen shot, is 15 BTDC. Need help setting ignition timing. At least the engine is in no danger of detonating. when you are setting your engine timing on most models of cars you have disconnect the vacuum advance from the distributor and plug the hose with a screw or something. You may ask, “If it’s so simple, why does it require a lengthy explanation?”. Your method looks pretty right to me. Update: The engine is a rotax 462 lc twin fitted to a ultra light with contact breakers for the ignition The engine runs fine. If not, loosen the distributor clamp and grasp the vacuum advance while moving it back and forth. Last edited: Sep 19, 2009. Ignition timing should indicate 10 degrees BTDC with the SPOUT connector removed but timing should then advance when the connector is plugged back in. 4 and a quality that is currently unmatched. I am pretty sure the timing is still factory set. First – When you hook up the timing light to the #1 spark plug wire and it flashes a light beam onto the timing tab, it’s showing you when the spark occurs, NOT when the ignition occurs and the explosion that starts to push the piston down the cylinder. DIY: Adjusting Ignition Timing You follow these steps at your own risk! Any additional/relevant information gained from this thread has been added to the first 2 posts. Make sure the correct timing mark is lined up with the seam in the crankcase. Get a helper to gradually increase throttle and engine speed while you watch the advance with the timing light and see where it is when it stops increasing. Set your idle speed just a little lower than normal by about 100 rpm, if the motor will stay reliable, and without the timing light hooked up, advance the timing while watching the vacuum gauge. 1992–97 Toyota Camry & 1993–97 Supra Ignition timing adjustment connector. Timing that is set outside the parameters of the capability of the engine may cause severe damage to the engine. Follow the wiring harness from the distributor you can't miss it. I'm using static timing light. The best I have is comparing 2 lights, after a wary informational static timing check when possible, since worn components can allow several degrees change when running. Later engines with engine management systems and the more sophisticated LPG conversions can have the advance rate and initial spark timing settings optimised for both fuels. PS: Code is Alt+248 on the keypad, accordingly to G°°gle. I think that the reason for a timing light is that it allows you to see if your timing is perfect. The object here is to move the sensor/breaker plate until you get a flash from the timing light. When the timing marks just start to appear, a 12v test light (or a multi-meter set to 12 volts DC) should be connected across the contact points (one side to ground, one to the hot lead on the other side of the points). How do you check the ignition timing of a light twin, in this case a Jubilee, without a timing mark to go by? I am not aware of any timing mark on these engines. How do I measure ignition timing? The spec for this car says the timing should be 5 degrees ATDC at around 900 RPM. I do not have a timing light in order to set it to 6 degrees, and I have no money to buy one and I don't know anyone who has one. your plane/jane light will set the timing fine. With an adjustable light set at 36 degrees, align the stock timing marks with “0” when the timing is. Set the ignition module advance slope switch for maximum advance. If you do not have the best timing light, it may cost you a lot of money and trips to the mechanic when your vehicle has trouble? The problem could be as simple as the fact that merely the ignition timing is off. If not, loosen the distributor clamp and grasp the vacuum advance while moving it back and forth. I have car with a 390 ford engine. You can use an automotive timing light to time them, at least in some instances. :scratch I used a Dremel to elongate the holes in the ignition plate, and was able to get the idle timing set to the "S" mark. If a dwell meter is available, that's definitely preferable to a gap measurement. Re-check the timing--it should still be at six dgrees BTDC at cranking speed. 91-99379) to the No. 9 dodge 360 gas stock engine for my slt larrame 1500 THANK YOU. If your engine bay isn't shrouded in plastic, then the chances are pretty high that you can change your ignition timing to increase. Set the amount of advance you want, say 35 degrees, on the dial-back timing light. Remove the vacuum hose from the distributor advance unit. Re: 6 hp Evinrude setting points/timing question Those marks on the flywheel are used with an automotive timing light. To use the timing light two wires go to the battery and the third goes to the number one spark plug. Turn advance knob to desired degrees advance setting. To set the timing on a Chevy 305 engine, locate the timing mark near the harmonic balancer. Before I changed the timing, the setting was highly retarded, way off the scale, like someone set the timing without the EST in bypass mode. From here you can identify the number 1 piston and its corresponding spark plug wire. The car is running well but speaking to an e-type mechanic the other day he warned me that the 123 distributor should be on setting 0 (zero) as any other setting would be too advance and cause the cylinder heads to over heat. I am working on an article about using a timing light to check for improper ignition timing. wrdabney, the timing light should work just fine and you have to have the engine running to set it with a timing light. Turn timing mode off. For any vehicle with adjustable ignition timing, there is a correct method. 1992–97 Toyota Camry & 1993–97 Supra Ignition timing adjustment connector. The best I have is comparing 2 lights, after a wary informational static timing check when possible, since worn components can allow several degrees change when running. Timing Adjustment Follow these steps to set timing to factory specs. Hopefully this step-by-step guide will show you how to set your ignition timing to standard, and also how to advance your timing. 5 deg and I bet the timing marks are accurate within fractions of a degree. To me this means 12deg at the crank but the timing flywheel timing marks conflict with this idea and suggest that its 6deg at the crank. Power Commander V w/ Built in Ignition Control. I have been trying for months to set the timing by ear and by static but no solution. When he timing is not set properly the car may experience hard starting, low power or bad gas mileage. would appreciate help with this timing issue i have with my buick 57 convertible 364ci. What I'm trying to find out without much luck is how do you time a 5efe/5efhe/4efte up? On a charade and civic, you had to put a paperclip in a plug to put it into setup mode, then time it up with the timing light gun. What you see as correct might not be what I see. My point is that, when set up with static at 12deg, or even a bit more, the car goes one heck of a lot better that with 6degrees and there's no evidence of detonation (pre-ignition or 'pinking'). That is the ignition timing. 75° for every pound of boost. Ignition timing, in a spark ignition internal combustion engine (ICE), is the process of setting the angle relative to piston position and crankshaft angular velocity that a spark will occur in the combustion chamber near the end of the compression stroke. First things first. PROPERLY SET TIMING ON CLASSIC 65/66 MUSTANG! STEP-BY-STEP DETAILED INSTRUCTIONS WWW. Brown or dark tan wire with a similar color plug. • Depending on the magneto, the distributor will be indexed to the rotor shaft during initial assembly of the magneto upper and lower housing. Then I set the MSD to pull the full 25* out at idle and quickly ramps up from there. com/p5fjmrx/r8n. I specifically stated that with a timing light, my timing mark is showing past the "T" to the RIGHT. TIMING AND VACUUM ADVANCE 101 John Hinckley In this day and age, when modern automotive powertrains are computer-controlled and engines don’t even HAVE distributors any more, the knowledge of what distributors did and how they operated to control ignition timing has begun to fade; for those just entering the classic automotive. Unlike other aftermarket tuners, The Screamin' Eagle® Pro Street Tuner actually talks directly to your motorcycle’s ECM and re-programs the motorcycle’s operating system. Deprecated: Function create_function() is deprecated in /www/wwwroot/autobreeding. If you have done major engine work or restored your tractor, chances are you removed the magneto and spark plug wires and eventually reached the point where you had to put it all back together and make it run. From my experience setting the timing with the timing light on euro motors is a waste of time due to the fact that they were designed to run on leaded higher octane gas and things were different in general. 0-L V6 in the Mitsubishi 3000GT and Dodge Stealth. 0s is a time-honored trick to wake up the under-hood lump. So we can choose an ignition timing value that the engine will be happy running at, let's say for argument's sake, 15 or 16 degrees. 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. Simply set the advance on the timing light and align the timing mark to the TDC indicator on your engine. If you have a 'dial back' timing light, set the dial to zero and use a degreed damper or timing tape to view the advance. On the right side of engine cases,below where the 2 cylinders meet, is a large. Ditto with the points, whenever I use a gauge to set them and then check them with a dwell meter they are off so I just use a dwell meter, I find it easier with the meter anyway. If you do not have the best timing light, it may cost you a lot of money and trips to the mechanic when your vehicle has trouble? The problem could be as simple as the fact that merely the ignition timing is off. So for example, if you MBT out at 35 degrees at 3k rpm, then for maximum efficieny you should be around 50 degrees during very light throttle at 3k rpm. 5 degrees, so my timing was set at 15. Loosen distributor hold down bolt and turn distributor as necessary until moving mark is aligned with correct stationary timing mark. Second, a bit more expensive one where you could set the wanted advance between 0 and 60 degrees. An ignition system timing check is critical during any tune-up procedure. I connected the timing harness to the 3 pin connection (which has as loop between 2 pins and a loose wire) and connected the loose wire to +12v. Start the engine and slightly loosen the bolts on the ignition distributor. 1 cylinder of the engine fires. In a photographic strobe, the flashtube is ionized by the trigger circuit, when the shutter contacts close. You should either have a digital readout or a dial to read. The best way to be sure that the ignition is optimised for both fuels is to install an ignition switching device, known also as "Dual Curves". I have worked on a lot of dist. Proper timing on a car improves fuel mileage, engine longevity and performance. Hang out at any race shop or racetrack for a while and you'll see somebody setting the ignition timing on an engine. while trucks running. Turning the distributor does not change ignition timing, but getting it in the right spot is very important. The vacuum advance will skew your timing readings when trying to set a baseline. Try setting the total advance, if you don't have a degreed balancer or a timing light to do that, you can get timing tape for you size balancer. Reliant Hints and Tips ; I will try my best to explain in a much simpler way how to do various tasks on a Reliant 3 wheeler. Top Brands and trusted OEM. Either I'm mixing up what you're saying or your mixing up your settings and where they should be. i could not not mark tdc. Please see also our Timing Discussion. Set your idle speed just a little lower than normal by about 100 rpm, if the motor will stay reliable, and without the timing light hooked up, advance the timing while watching the vacuum gauge. If you mean set ignition timing, generally not although with certain VWs you need a scan tool instead of a timing light. About 71% of these are diagnostic tools, 12% are filling machines, and 7% are other vehicle tools. To get to the point, I have gone over the bike checking all settings, having clocked up about 850 gentle running-in miles and thought I would be clever by re-setting the ignition timing, which appeared to be out. Don't rev it up or you will not get an accurate timing reading/adjustment. With the ignition timing at idle set at 5 degrees BTDC I'm getting 40 degrees at 3500 with vacuum and around 10 degrees without vacuum. Timing chain wear often gets misdiagnosed and may cause a rough idle, a lack of performance, reduced fuel mileage and several check engine light codes.