305 tpi timing. These will be loaded into a Haltech ECU library map.


  1. 305 tpi timing. If I give it gas it will run but rough at lower rpm but smooths out at higher rpm. One day I will fire it up and it runs great. Dec 12, 2009 · I know a fair amount about 55-57 chevys, (being old) I know nothing about later designes. but I try to keep an open mind to new stuff. Apr 17, 2011 · 1986 chevy 305 engine timing help Jump to Latest 24K views 28 replies 5 participants last post by fact2011 Sep 25, 2011 B Aug 25, 2002 · Guys, There was a recent thread that considerably dogged the lack of performance of the 305 TPI equipped 3rd gen. Dec 18, 2003 · Hello everybody my name is Jim. 5 rocker combo and use say aftermarket TPI runners then a ZZ4 cam will work very well. At this point the timing mark will be approaching For a 1985 305 Tuned Port Camaro, how does the idle speed respond on a cold start and on a hot start? I show the start and idle through a complete warm-up cycle. 50 or 1. Engine runs. line up your timing marks / and make your 5. 2-locate the timing index tab on the motor, below the water pump, just above the balancer. May 21, 2025 · To set the timing on a Chevy 305 engine, locate the timing mark near the harmonic balancer. Please help Brock The 305 was especially useful in the 1980s as many of these vehicles incorporated electronic in-car computers, carburetors, and fuel injection systems. I am prepared to rebuild it but im not sure what to do with it. 0? You could put a vacuum gage on the engine and time it for peak vacuum. The main difference between this engine and Jun 5, 2007 · 1988 iroc 305 tpi . The problem is somewhere else. Doesn't matter if it's a LG4, L69, LM1; 305, 350, 400, 151, or any other CID; TPI, carb, TBI, or any other induction. 0s. A carbureted 350 swap would be cheap, and make great power. Shut off your engine. The next time it misses severely then it may not start for a month. If the base timing is off enough to cause trouble then the distributor needs curve adjustments. Turn the crankshaft with a ratchet until the timing notch is visible. Oct 11, 2022 · The TPI 305 and five-speed transmission was the hot setup in ’88; the TPI 350 had more power but was only available with the 700-R4 automatic. i wanted to have the timing like 38 degrees BEFORE TDC total, but when i put the initial timing to 3 Recommended 305 TBI modificationsNot very many 305 trucks out there but other than cam selection most of the same issues apply. Earlier today I had the car running for about 10 minutes (just got the motor back in the car). May 5, 2001 · The only way I know how to time TPI engines is in one of the repair manuals. Talking about tuning, either plan on buying an aftermarket computer you can tune or getting the equipment to tune it yourself. I have a GM 305 engine(1979) in my CJ, i found this info on the net; Basically, your 305 initial timing (timing you're going to see with the timing light) will be between 8-10 degrees BTDC (before top dead center). 5% positive Oct 21, 2008 · Idle is not totally smooth but has improved with work done. Gets the net lift just over . which is pretty much a LT1 intake designed for TPI. Most came with autos, so they made 200HP or less. i put a timing light on it and the car was 4 degrees AFTER tdc TOTAL timing. No matter what I try, it just won't stop overheating. I need some info on carb systems vs. it runs fine for a Camaro or Firebird 305 TPI Engine with wiring & accessories, USED The Key reason the the 88-92 L98 350 TPI motors made 245hp and the 93 LT1 made 275hp is that intake. There are two things to look for. Jul 23, 2010 · I recently bought another 3rd gen camaro (this makes number 4) for a nice driver with show quality interior and exterior. It has the small bore of the 265 Chevy engine (3. 2K views 8 replies 4 participants last post by SkiingOnIce Oct 17, 2023 SkiingOnIce Discussion starter Customer: on a 1987 camaro 305 tpi which distributor wire is positive for the ignition module green or white Aug 29, 2025 · Sell now 85-92 305 350 Camaro Trans Am 85-91 Corvette TPI Engine Timing Cover w/ Tab ATP Nook and Tranny LLC (58051) 99. 2 cui, 141. since it's suppose to remove pollutants i was guessing that just remove the **** will improve my engine perf. Factory settings and any other ‘experience’ specs would be great. Any doubt replace them along with the transmission mount. Disconnect the vacuum advance on the distributor and connect a timing light to the number one spark plug wire. Jan 24, 2006 · Quite sure, there are 2 relays for the Bosch heated wire MAFS (found on the 350 & 305 TPI's) They cost around $17 each. In doing that, I discovered that it had 2 different brands of injectors By Tom Keliher (tkeliher@pacbell. You are now going to adjust "minimum air The BoxWrench Engine Specs Database is a community resource for mechanics of all skill levels to access a reference library of Firing Orders, Distributor Rotation Directions and Block-Cylinder Numbering as well as Torque Specs, Timing Settings and Cylinder Head Tightening Sequences among other engine specs. In order for any modification to be worthwhile, the engine has to be running at its peak, as designed. Visit Pinpoint Air today and get started on your scrapyard build! How to time an engine with a timing light: This is for the 3rd Gen Camaro Tuned Port Injection 5. Start engine. Im told i need to 'disconnect the brown wire under the glove box' lol As you can see, theres no glove box. To time a Chevy 305 engine, first locate the timing marks on the harmonic balancer and timing cover. A properly equipped 305 TPI car ran even with the 5. Camaros and 305's in general. Known for its reliability and performance, the 305 has been used in a variety of cars and trucks since its introduction in the 1970s. When I hooked up the timing light and grounded the aldl, the car would not start! So I unhooked everything, and it still will not start. Jul 1, 2002 · Read the Chevy High Performance magazine's technical article on adding tuned-port injection to a Chevrolet small-block V-8 engine. The car will start and run, ONLY, if I keep my foot on th Oct 22, 2022 · Remove the #1 spark plug, hold your finger over the hole, and rotate the engine forward by hand until you feel compression coming out the hole. Jan 4, 2023 · I am picking up this 91 Camaro/Firebird 305 T. Nov 12, 2021 · C1 & C2 Corvettes - Ignition timing 1985 305 TPI - I need help with the settings for idle, vacuum and full load advance for a LB9 (1985 small block 305 chev). increasing power is in large part the result of increasing the amount of air How to Set the Timing When you think about it, setting the timing at idle speed makes no sense at all: You don t operate your car at idle, and timing changes as the rpm changes. While I specialize more in the daily driver type fuel injection aspects rather than full fledged race cars, most of my advice is going Nov 28, 2008 · 85 Z 305 TPI Has intermittant fireing problem. It is measured in Timing a 305 TPI I dont know what to do in order for it to be timed right. This is what I have for the ignition system on this vehicle. It has a chevy HO 305 TPI with about 125,000 miles on it. With the Spark timing connector unplugged set the TPI 305 Chevy to 6 degrees BTDC. Remove the idle screw plug on the throttle body assembly and adjust the idle to 450 rpm’s. I need to know the initial timing to set his engine at before we start it up the first time. When I spray carb cleaner into the T. 0L V-8 TPI automatic (aut. Sep 19, 2008 · The factory timing and settings for your car is located on a label located on the driver side of the fan shroud and it should be 6 degrees. CodeThere's nice chatting with you on the phone, my friend. Another code that seems to bring about quite a bit of confusion is Jan 4, 2018 · The Chevrolet 350 cu-in TPI V8 made its debut as the fuel injected future, but the de facto V8 across the entire General Motors corporate panoply of automotive brands and models was the oft-maligned 305 cu-in small block. Mar 21, 2023 · I would like to set the timing on the 305. These are covered in part 2 of my G. My 88 iroc wouldn't idle in gear but it would idle in park so I checked the timing and it was off a little and it helped my idleing a lot when the car is in gear. 305 v8 Timing / firing order Diagram Eprofitdetroit -The Process 6. Dec 2, 1999 · If the timing is off a little it might idle in park but not when it is gear like drive. 46K subscribers Subscribe Dec 27, 2024 · The Chevy 305 engine, a popular small-block V8 produced by Chevrolet, is a cornerstone of American automotive engineering. Chevy Small-Block Firing Order and Torque Sequences - Covers Engines: 262, 265, 267, 283, 302, 305, 327, 350, and 400-ci Jul 17, 2016 · The 305 TPI that I told you about and put in my truck came out of a pristine 1991 Camaro Z28. any help or reccomendations Sep 8, 2012 · 1985 F-Body LB9 305: 9. Will not stay running. Understanding the common problems with the Chevy 305 engine is essential for maintaining the health and longevity of your engine. I don't have the cam specs card for the Feb 25, 2023 · The Camero etc used the 'car' 305, and did come with TBI, TPI, EFI etc as of 1981 I think. 75 inches) and the long stroke of the 350 Chevy engine (3. It's a 305 with a Performer intake and hydraulic lifters with a Sealed Power (Federal Mogul) CS-274 cam. Oct 25, 2015 · If you port the stock TPI heads and the TPI intake manifold, ( some people "Siamese" the TPI runners and use say a 1. I know any used engine that you can't see & hear run is a gamble, so taking a chance that it won't need anything Aug 5, 2008 · The best ever 305 was the '89 305 TPI and it was 230hp. Usually seen from the left (driver's) side of car. - Chevrolet 1988 Camaro question Mar 16, 2010 · the motor is a 305 tpi that is surpose to be bored 40 over with a small cam and that is all i know the timing is not just right at the moment and i was wondering what Oct 3, 2004 · the new manifold i think to buy don't work with it so i wanted to remove the thing. Specs datasheet with technical data and performance data plus an analysis of the direct market competition of Chevrolet Camaro IROC-Z 5. I know that I have to disconnect one wire that comes from the computer so that it is not advancing the timing electronically when I set it. It will probably need a cleaning in order to determine the marks for +/- TDC. So I figured I'd try and see if the timing could be an issue. Wait 30 seconds. 0L, but it applies to most distributor type engines. I have a chance to buy an 86 305 TPI tuned port engine, with all the sensors and computer ect. Now, go remove the connector from the IAC. May 5, 2001 · i recently purchased an 87 iroc z 305 tpi. No Bypass signal. Setting the static timing may vary a little if you have breaker points or an optical pickup instead of a magnetic pickup. yah i know everyone is gunna tell me to junk the 305 and get a 350, but i like the motor. My book says to set timing at 6 degrees,internet says 12 and Friends say 0 degrees. All CFM values are corrected for airflow at 28 inches of water. Good news is the bushings are easy to change and 88 Firebird 305 TPI. 7L 305 tpi Chevy engine run Chevrolet 305 TPI Engine Timing: Correct RPM Setting Guide 305 TPI engines often face timing drift and rough idle due to incorrect initial timing settings. Disconnect the tan wire with a black stripe that comes out of the harness near the heater box. Apr 20, 2009 · Is the stock 350 intake manifold better than the 305? And is there a vacuum hose to disconect when checking timing @3000 like on a distributor? //Stefan Do you mean a stock 350 tpi manifold? There is no such thing, GM designed the TPI to feed a low rpm 305. HEI distributor, timing is all in at 2500 rpm. Timing at 6 degrees, never advances to 3500 rpm. The TPI will also be restrictive on the intake side with a 350 so you will need to cam it for torque unless you do a bunch of modifying on the system. I have a question about the ignition timing on an 85 305 TPI. We focus on proven MegaSquirt setups (MS3 w/ MS3X and MS2), HEI wiring, and TunerStudio configuration. It came stock with a 305, but i swapped that for a 350 4bbl. There seems to be a lot of confusion over what made it HO , so here are some basics. heads flow practically identical numbers and the cam was almost as similar. 4) in 1986, the model with 3-door hatchback coupe body and V-8 5001 cm3 / 305. Everywhere that I have read says that this wire can be disconnected above the heater box; it is the one that is haning out of the Sep 30, 2023 · The 305 TPI heads (#081) will need max hand porting to get them breathing. How to set your top dead center on your number #1 cylinder/ find your 1 cylinder plug on the distributer. I have replaced the ECM, checked the fuel pressure, timing, and compression. If the car "starts the first time" when cold then there is nothing wrong with the cold start system. the car starts fine but as you can imagine it is VERY slow. Tune-up on a Chevy Camaro rs Thirdgen. i am sure it's anti-pollutans thing too so can i get ride of it Setting GM OBD1 Timing on a 1988 IROC - Z28 350 TPI with a Distributor Cap & Rotor Change Axle's Garage 27. All of the components match up with about a 1991 Jan 1, 2023 · For the baseline test, the stock 1986 305 TPI hydraulic cam was retained, and 17/8-inch, fully instrumented dyno headers installed. 94-1. Mar 22, 2009 · C4 Tech/Performance - TPI firing order - Is this firing order same on 88 TPI? 48160138 I removed the distributor, distributor cap, spark plug wires and now I but them back together according to this picture and when I crank it nothing happens. Overview This guide covers pre‑OptiSpark Chevrolet/GM small‑block engines with Tuned Port Injection (TPI) or Throttle Body Injection (TBI) using HEI ignition with electronic spark timing (7‑pin or 8‑pin modules). May 23, 2014 · TPI Intakes and runners The following airflow tests were performed on the University of Northwestern Ohio's SuperFlow SF600 Flow Bench. This Mar 5, 2004 · If your 305 TBI is stock and is running the stock base timing setting of 0* advanced than there is no need to run higher than 87. Mar 20, 2017 · Control the total timing so you're not leaving power on the table or blowing things up, and let the base be where it lands. You could actually put together a long-block 350 and use the intake and electronics from your 305TBI setup, but i'm not really sure how radical you could go before you reach the limit of what the 2bbl TBI/intake combo could handle. Would like some advice. Advancing your base timing to 6* or 8* will in most cases require you to run 89 or 92. The whole conversion was previously installed on a 1970 Camaro and is therefore secondhand to us. Insert the clip ends into the ALDL in the ‘A’ and ‘B’ pins. I have done all my timing adjustments with the timing wire disconnected. It will help you make decisions about maintenance, repairs, and even purchasing a used car. I will be the first to admit that the 305 is not the greatest performance engine due to it small bore and the valve shrouding that is cause by it Jul 1, 2009 · I drive a 1986 Pontiac Firebird Trans Am. Fact is, the timing spec at idle speed is provided as a simple way for most people to set the timing, and is not a good procedure for optimum performance. Check ignition timing. 5:1 215 HP @4400 RPM, 275 ft/lb @3200 RPM (TPI 305) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Feb 19, 2009 · Motor is 350 with TPI. I suggest two things: check for timing chain wear and if that checks out within specs, give the timing some more advance. The intakes on the 350 where the same. For a Chevrolet 305 with TPI and manual transmission, set initial timing at 6° BTDC. These will be loaded into a Haltech ECU library map. I would look at the MAF and ECT May 13, 2006 · The 305 and 350 TPI systems are about the same except for the injectors and the computer tuning. 0L Ford to the Chevy 305 TPI engine, heads-up. Start the engine and point the timing light at the marks. In today's video, we go over a few things in my new 1991 Pontiac Firebird Formula/WS6! This is part one, of a two part video series that will get this 305 TPI in GREAT running shape! Oct 16, 2023 · 1986 Trans Am, 305 V8 TPI, stalling below 1000rpm, codes 13, 33, 43 Jump to Latest 3. B. Stabbing distributor, rotor location and what degree from top dead center. Many parts are interchangeable between the small block engines, and most maintenance procedures are the same. To adjust your timing: Warm up your engine to normal operating temperature. It's mostly a property of how gasoline burns. Discover the system's components, benefits, and more. At least in 3rd gens, LG4 (VIN code H ) and L69 used the same head castings, 416 Jul 2, 2007 · HI! I am helping my 14 year old on his first rebuild. About 6 months ago I installed AGM TPI conversion on to the 305 in my buddies 85 Monte Carlo SS. 56 valves. 48 inches). A crucial aspect of maintaining this engine is understanding its firing order, which ensures smooth operation, optimal performance, and Aug 14, 2006 · 1-Disconnect the ECM ref wire, (tan, single wire), the quick disconnect is on the fire wall, right (passenger) side. 305 BUILD-UP Customer: 91 z28 305 tpi I replace the head gaskets. I am going to be adding some power to make it a little more respectable for todays world and have some questions about camming a 305 with TPI. On GM HEI distributors, when the bushings go, it can allow you timing to advance past 45*. I found the tan/black wire that controls timing advance just below the bulkhead connector and unplugged it. EFI systems for small block chevy's (350-383). i'm a 60's and 70's chevy guy and this is my first computer/tpi experience. Check the Engine motor mounts and make sure they are good. After 1996, GM installed the Chevy 305 in small Chevy and GMC trucks and SUVs and renamed the Vortec 5000. Long tubular runners from the plenum to the intake manifold helped build torque and power. Sep 28, 2004 · FAQ Board - Differences between 305 engines, performance tips - There was only one engine called HO in 3rd gens - the L69 (VIN code G ) from '83-'86. Learn how to boost the power of your 305 engine with these budget-friendly mods and tips. Jan 6, 2005 · TPI - Tuned Port Injection discussion and questions. 1 Review Show Reviews Camaro/Firebird 305 TPI Engine w/ wiring & accessories, USED Jul 7, 2017 · The TPI 305 was basically brand spanking new, while the used Ford, an LKQ Pick-Your-Part special, had previously logged 150,000 miles, and possibly more than that. I've heard mixed things on the subject, as of now I have a 305 TPI and am loving it but I want more power, after consulting an expert he informed me that sadly my stock TPI would not cut it if I wanted May 18, 2009 · hey everyone, i was wondering if there was a mild grind cam i could run in my pretty much stock 88 t/a 305 TBI. Distributor rotor can be assembled only two ways because there is a pin I have a 1991 Z28 Camaro 305 TPI that won't start unless I unplug one of the fuel injectors. Read the below URL for tech information; -SLP Performance Parts- They offer a lot of technical information. 5 PSI on an injector flow bench using test fluid with same density as gasoline. The basic process is similar for most other distributor type engines. Tach functions. I got it and the 700R4 for $1000 and it had 63K miles on it. A timing light is still better. This instruction manual is designed to get you up and running with the FiTech Ultimate TPI System. M. / cylander . I have posted pages to help those with these systems overcome the limitations of those systems and point out what those limitations are. Adjust the distributor by loosening the hold-down clamp and rotating it until the timing mark aligns with the specified degree The small block Chevy 305 engine was introduced in 1976 as a fuel economy engine. I have recently purchased a 1986 chevy camaro iroc z-28. net) The Basics The very first order of business should be a proper tune-up. The 305 was even used for a special edition 1980 Corvette. You have to stick a piece of wire in two of the dianostics pin holes to get acurate timing. Turn on the ignition, but don’t start the engine. you'll want IAC and TPS Adjustment Idle Air Control Tools needed: Torx bit # T-20 Paper Clip Small Punch Take the paper clip and open it up and form it into a big "U" shape. Thanks Tim Mar 30, 2022 · Engine expert Richard Holdener pulls some performance out of the trusty TPI 305 small block Chevy engine—with dyno tests to show it. So if you have a 305 with TBI, the Procedure for timing it will be the same as for the 350 with TBI, the only difference possibly being the initial timing point. I can't get the truck to idle all the way down to 0* connected or disconnected. Often those things wear out and allow the timing to flop around. . It is amazing how many people expect mod's to do something for the car, when in fact the state of tune prevents any modification from being beneficial. I pulled the oil pan and intake off to inspect everything, change the timing chain and detail the intake and TPI unit. i got a evaporation canister. I have narrowed it down to not getting spark randomly when it is missing using a timing light. 3K subscribers Subscribe Nov 5, 2000 · my 86 iroc-z with 305 tpi will start but stalls quickly. I had a family friend time the engine after I dropped it in, but I wasn't Oct 5, 2020 · The factory standard for initial timing is recommended for emission controls, but the engines can run better. engine on Saturday for future install in my 57, the guy selling is tired of tripping over it and not going to use it anytime soon. It idles a little better at 6*. ECM RESETS article. The centrifical weights should have bushings around the pivots. Nov 14, 2006 · The stock 305 ci engine got a recurved distributor, advanced timing, and a rebuilt performance carb all good for about 25 HP. I have always had trouble when I have needed to time the car. All cars came with a "Git Kit" in the rear hatch area which included a 600 Holley carb, aluminum intake manifold, Mallory distributor, Coil spark plug wires, Champion spark plugs, low restriction air cleaner, Tri-Y Apr 10, 2020 · Hopping into the time machine, Richard Holdener goes back to the 1980s to compare the 5. They are very modest in stock form but get much better with full porting 1. Injector flow rates are flowed at 43. People overlooking the part in the book about disconnecting the tan wire with black strip (computer advance) wire to set the base timing to zero (4 degrees on big blocks or 6 degrees on TPI cars) A typical SBC idles with about 16 degrees of advance which is what the chip will advance to when the wire is reconnected so if you didn’t set that Sep 14, 2001 · Hey all. ANY help would be Mar 24, 2009 · 305 sbc. So im told 'its a brown wire', ' its more of a tan wire' , 'its brown with white stripe', 'possibly brown and black wire' 🙃🙃 so i said "the Oct 22, 2022 · How do you adjust timing without a timing light on a 1985 Chevy 305 5. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products. Have checked mostly everything and no codes on comp. This system has almost everything needed to complete the installation of the ECU, wire harness, and sensors for your 305 (LB9), 350 (L98), or modified TPI engine. It dies at about 8-10* even Most IROCs were 305s, either TPI or TBI. 500" with friendly intake and exhaust timing for the purpose. The trucks use a flat tappet cam and if you must mess with the 305 in the trucks then there are recommended flat tappet cams on the 350 V8 modification page although the truck blocks do have all the roller cam provsions and so I would grab the roller stuff out of one Learn how to install and troubleshoot Chevrolet's Tuned Port Injection system (TPI) with this comprehensive user manual. F and while the engine is cranking (Key in the START position). Is this a good idea? What is involved in making one work Welcome to Harris Performance, this site dealing with the TPI Tune Port Injection system used by GM from 1985 through 1992. People are telling me to bore it up, slap some vortec heads on it, put a mild cam Feb 19, 2009 · the use of a digital volt meter ,too check ALL YOUR FUSES before you start to diagnose problems, having a test fuel pressure gauge and having a shop manual handy that's for your exact corvette or muscle car is almost mandatory YOU'LL NEED TO READ THRU THIS SIMILAR THREAD ALSO Jan 29, 2004 · CHEVROLET { { { { {shudder}}}}} cut the cam timing in 1986 so just bringing it back to 1985 levels will improve it. If you are seriously interested in this build-up, I suggest that you find a copy of that issue. The truck runs fine, but I am trying to set base timing to 0* per factory specs. 6/1. Then I shut the car off, and was going to check the timing. 3-hook up your timing light according to the manufacturer Dec 16, 2005 · Re: Addition!!! Timing jumping around is probably a sign of a mechanical advance problem. I. Will work on many other adjustable tps, please check to be sure your using the cor Aug 12, 2002 · 325 horsepower 305 cid Chevrolet V8 (Built with simple bolt on mods!) This information is a brief summary of an article that appeared in the March 1999 issue of Car Craft magazine. Much of this also applies to 1980s GM big blocks and even‑fire V6s. Best intake for TPI in my opinion is the TPIS miniram. I have been reading on timing for TPI and some people say 6* is what it should be so I have set it there. If you use their Feb 13, 2009 · hi everyone, as the title says i have couple questions about timing. I dont have to many mods, just the usual intake and exhaust. My question is what cam would May 25, 2008 · I just got through with the lovely task of replacing the intake manifold gasket on my '87 305 TBI. Code 33 is almost always generated by a bad MAF power relay and 36 by the burnoff relay. 5 kW / 192 PS / 190 hp (SAE net) of power, 386 Nm / 285 lb-ft of torque, 4-speed automatic powertrain offered since October 1985 for North How to properly set your throttle position sensor on your 305 TPI engine. Jun 2, 2008 · Except that if it still has the computer controls, you have to re-program the chip to change the relationship between "static" and "final" timing. In order to accomplish this Rollmaster IWIS Seamless Double Roller Timing Chain Set SBC 305 350 TPI Double Roller Premium quality German manufactured IWIS timing chain with seamless rollers Small Block Chevy: 305 & 350 late model roller cam TPI (Tuned Port), uses factory thrust plate 9 keyway crank sprocket: 0, advance 2,4,6,8 degrees, retard 2,4,6,8 degrees Torrington bearing for reduced friction Includes billet cam Jul 22, 2016 · By Roy, BAT Auto Technical,Technical Editor Probably the most misunderstood code (s) are the ones that deal with quad driver circuit faults like 26, 27, 28, and 29. Ignition timing is the measurement, in degrees of crankshaft rotation, of the point at which the spark plugs fire in each of the cylinders. It is a big weatherpack connector, you can hardly overlook it. P. how do i correctly set the timing and what is it set at? also car will not crank cold without holding the accelerator pedal down 1/4 to 1/2 inch. Feb 10, 2019 · With luck ,this is the right spot for this thread. Apr 29, 2009 · E87, The cold start injection system which consists of the "cold start switch" and "cold start injector" only operates with the engine temperature below 100 deg. It is not drivable, stalls when put in gear. There is no patern. I need help with setting the timing from scratch. I had the timing set at 0* TDC for many years with no problems. 3trd 8f4cua umbv 605 fa iyo5jn ap8h4b qn1z v3tta wl