Hei Pickup Coil Problems

However in terms of high-RPM function, it falls well short of ideal. Distributor comes with cap rotor dragon fire coil dragon fire hei module housing adjustable vacuum advance canister and proper drive gear. 055' to achieve optimal results. The GM HEI module can easily be mounted remotely. Checking & Replacement Of The HEI Pick-up Coil. the original gm board had problems with reliability and no potentiometer to adjust rpm. The TI system solved these problems and was reliable up to 10,000 RPM all day long. HEI pickup coil resistance should be between 400 and 900 ohms, wire to wire, NO resistance, either wire to ground. When converting to an HEI there are three issues which must be addressed. If this process does not operate the way it is supposed to, ignition coil symptoms appear. Set the ohmmeter on the high scale & connect it between a ground & either the white or Green lead. Because the number and shape of the laminations determine the output characteristics of an ignition coil, ACDelco can help ensure that the silicone steel plates surrounding the coil correctly. My 20 years of HEI head-scratching says that 95% of the no-spark failures are module or ignition coil. Overlooking the basics will leave to frustration and unnecessary time and expense. The problem could be a loose connec-tion or corrosion in the high-voltage coil lead, either at the coil or the cap. Hence the problem of single-coil saturation (coil energy) vs. From the results you get, you'll be able to pinpoint the problem to the ignition control module or the ignition coil or the pick up coil or completely eliminate these as the cause of the no start condition. This means testing with a common Ohmmeter is unlikely to show anything but the grossest problems like a complete open or high resistance. Buy online, pick up in-store in 30 minutes. Can I use the small cap Gm HEI if I pull the timing control module out of the distributor and just use the mag pickup already in it. I just kind of guessed on what the coils/pick-up coil ohms read. The coils rarely go out, just go with quality parts when you fix it, should have no problem. when the 2 pick up wires are connected to fitech and black wire is hooked up to white wire on msd 6al and setting is set to vr+coil and key cycled. Got the module (7 pin, but a 4 pin will work, too) at the junkyard for $7. HEI is characterized by the incorporation of the ignition coil into the distributor cap for most applications. For starting purposes, there was a 12 volt override supplied by a separate wire from the “R” terminal on the starter solenoid to the ignition coil. Backfiring. Last thing would be to see if you can get a hold of another timing light to try on the suspect. Here's a positive pulse waveform. I made a bracket to hold the coil and installed it on the intake runner above the distributor. One of these will go to the VR circuit input (DB37 pin #24) the other to ground. Re: 4 stroke HEI Conversion i thought i read use a ignitor out of a chevy hei distributor and a coil pack off a 3800 engine? I have a rev limiter on mine it cuts out around 4000 rpm i have the governer max out !!. It is connected to the p ositive output of the reluctor pickup-coil. From the results you get, you'll be able to pinpoint the problem to the ignition control module or the ignition coil or the pick up coil or completely eliminate these as the cause of the no start condition. (View of an upside down HEI coil) A - coil secondary output terminal (where the carbon brush spring makes contact). In my Jeep CJ-7, I didn't have one of those rare factory tachs so I chose the Autogage Tachometer 3-3/4 inch with an 8,000 RPM range in a black finish to be mounted on the steering column of the Jeep. Testing Pickup coil-Test 1 should read infinite at all times. Ford Duraspark coils - the type with two prongs that a horseshoe connector snaps on to. Using the Hayne's Manual Diagnostic Flow Chart, I tested for: spark at the plugs - No Spark spark at the coil wire - No Spark test the Coil - results all positive (the coil is new) Check voltage at terminals A & D of the Ignition Control Module - >10v at A, 10v at D (This is the problem) The ICM is new also. Ford F-250 Pickup Ignition Coil Your Ford F-250 Pickup will be happy to know that the search for the right Ignition Coil products you’ve been looking for is over! Advance Auto Parts has 12 different Ignition Coil for your vehicle, ready for shipping or in-store pick up. The coils rarely go out, just go with quality parts when you fix it, should have no problem. Installing HEI distributor from scratch!!! points is directly across from the pickup. By using a pickup coil of proper magnetic polarity, the external magnetic fields will not affect the pickup coil in such a way as to give false turn-on or fire signal to the module. In 2006 I drove the car from TX to NC having no problems. The trigger coil tells the black box when to trigger the spark. Got it back together she would crank but if you turned her off after warm she wouldn't start again. Designed for small and big block standard deck Chevy V8, this unit replaces and upgrades stock High Energy Ignition distributors found in 1987-1993 car and 1987-1995 truck external coil applications. the one on the left is for hooking up a tach. A few years ago, I converted an older street bike to a GM HEI ignition. Learn about this problem, why it occurs, and how to fix it. This whole thing is designed to test for a misfire or a. 0 engine this distributor has a vacume and a computer conection each time i change out the distributor it runs for a while then there is no spark i am thinking something is short the pickup coil. Kit includes mechancial advance springs, and vacuum advance (non-adjustable). Who else has had one go bad. In the HEI system, as in other electronic ignition systems, the breaker points have been replaced with an electronic switch-a transistor-which is located within the control module. An inductive pickup, in itself, has no electronics about it - just a magnet and a coil in essence. I carry a spare module, far simpler to change on the road (no adjustments). Yellow Sparking. There is a module checker but most service places don't have one. I have a 1985 Chevy C10 305 V8 4BBL with a HEI distributor that has no spark. For the traditionalist that must have an HEI inductive ignition system, or for the car owner that simply does not want, or doesn’t have room to mount the extra external components, MSD’s new Ready to Run (RTR) distributor will fit the bill. Dodge Ram, 1500 v6 99' New button, cap, and pick up, new coil, new coil and plug wires Squirrels got in and chewed through (TPS, o2, fuel injector, distributor pick up) wires I have cut crimped and replaced all wires, pick up wires had to be changed with heavier gauge wire so resistance is off Rotar is spinning. The only unit that tested bad was the control module that I had tested at AutoZone. Whether or not they are stand-alone coils, like our DiamondFIRE High Output CD Racing Ignition Coils, or coil near plug applications for LS motors or the ultrahigh output HEMI COP, all E3 ignition racing coils are engineered to deliver the maximum voltage for all performance applications. Pickup coil connector for the HEI module. It is prephased at 20 deg from the factory. The one that was a hoot was the Oldsmobile (turns opposite rotation to Chevrolet) with mixed up pickup coil winding and magnet polarity. also wiggle the wires while you take the reading. on HEI are the module, coil, and pickup coil. you need to know that. What causes GM HEI coil failure? but I'm not so sure that was the real problem anyway. 1 out of 5 stars 21 $99. The heart of any ignition system is the coil, battery voltage is supplied on the positive side, while the negative side is repeatedly pulsed to ground. As near as I can tell, the stock HEI coils were about 0. Automotive Group provides the best suspension and related chassis component solutions to create a superior buyer experience for the professional and hobbyist car builder or installer. The fuel injectors also fail to fire, which may lead to car not starting. But with multi-coil ignition systems, a single coil failure will only affect one cylinder (or paired cylinders in the case of waste spark DIS systems). My dad built his own HEI distributor for the FE engine that he built for his pickup about 10 years ago. If it's an oil filled coil mount it horizontally, if not them mount it however you want. Includes coil and module. 00 for it, made in China, ( $210 for the GM unit ) and it has been in the car since ( about 8,000 miles) with no problems. There was a solid ground from that unit directly to my battery. The pickup seems to be my. This service was begun in 1977, by myself, David Ray, to meet the needs of those that want to utilize an HEI ignition system, where the size of the large, coil in cap HEI will not fit without severe clearance/interference issues, and/or problems, or, to retain the appearance of a stock point distributor, and, still use a better HEI ignition system. (Some aftermarket manufacturers will use no connector body instead of a clear one. The pickup coil monitors the rotation of the distributor and triggers the ignition this problem will persist and. And, product development is a continuous process at Performance Distributors. Product Description: This is a new HEI distributor for small block/big block Chevys with 65,000V high voltage coil spark through 9,000 RPM, upgraded for racing application. Figure 6 Primary Wiring to a GM HEI with a 5 or 7-Pin Module (Points Trigger). There were a number of different kinds of General Motors HEI modules: 4 pin module - electronic ignition, but doesn't do computer timing control, top left; 7 pin module (large) - electronic module that does timing control, used with coil-in-cap distributors, top right. the one on the left (c) or the one on the right (b). The black box coordinates everything and tells the ignition coil when to fire the spark plug. How to swap an HEI in-cap ignition coil - Duration: 6:52. See Figure 1. If you need to just test the ignition coil, your starting point is TEST 3: Testing The Ignition Coil's High Tension Wire. Remove distributor cap and mark, with paint the housing in relation to the block and also mark the rotor in relation to the distributor housing. The iginition waveform (coming off coil neg. 1973 - 1979 F-100 & Larger F-Series Trucks - Pickup coil testing? intermittance possible? - hey guys im curious if my pickup coil is bad although the truck still runs? i dont know if theres such a thing as a p/u coil going bad or on its way out or weaken over time?. Set the ohmmeter on the high scale & connect it between a ground & either the white or Green lead. Replaced coil, worked great for a few days then started skipping intermitantly. A-Team Performance HEI Complete Distributor Straight 6 Cylinder 240 and 300 65K Coil Compatible With Ford F100 F150 F250 E100 E150 One Wire Installation Blue Cap 4. The test lamp should blink repeatedly as the engine cranks. Changing pick-up coil in distributor-Delco HEI? shaft/magnet is demagnetized causing problems. The mileage between failures is random: 3k, 5K, 8K. + Items in search results. I have a 1986 Chevy c/10 with the 305/5. I made a bracket to hold the coil and installed it on the intake runner above the distributor. Here's a positive pulse waveform. a tach port can also be used. High performance upgrade to the stock HEI coil. Performance Distributors is leading the way in performance and racing ignition system innovation. They won't be able to show a primary short. Full CNC machined aluminum body. Find the right parts for your Up! Enter Year. Second one lasted maybe 10 minutes and then cut the jeep off. extremely rich mixture, which could cause drivability problems and severe engine damage. His engine has the Performer intake and he had to do some very slight grinding on a boss that's at the front of the intake but that was all. This feature allows for a much hotter spark and increased gap on the spark plugs. Applications include: 283, 305, 307, 327, 350, and 400 small blocks. I just received my HEI in the mail today and it has no instructions. When C first opens, the ignition coil produces a spark. My 20 years of HEI head-scratching says that 95% of the no-spark failures are module or ignition coil. php(143) : runtime-created function(1) : eval()'d code. On a multi-coil DIS or COP ignition system, it will cause a misfire in only the cylinders supplied by the bad coil. For engine families that do not have genuine Delco HEI parts support, I suppose the best you can do is to assure the pickup coil matches the ignition coil--either both coils should be "yellow" codes, or both should NOT be yellow codes, either way. In addition to the module, you will find the ignition coil, the pick-up coil, the magnetic pick-up assembly, and the mechanical and vacuum advance units– all nestled tightly under the cap. The other components of the distributor, such as the mechanical and vacuum advance, gear drive and shaft, are all very similar in function to those found on a breaker-point system. ~ Pick-up coil continuity is tested by connecting the ohmmeter (on low range). Accel Super 1985 Ford 5. What you need:Distributor cap, rotor, base (this distributor is a two piece type, with a base that mounts to the motor and a cap that clips to the base), spark plug wires, and ignition coil. Need a replacement Ignition Coil for your Chevy? Shop quality Ignition Coil Packs from 1A Auto. I just received my HEI in the mail today and it has no instructions. There were a number of different kinds of General Motors HEI modules: 4 pin module - electronic ignition, but doesn't do computer timing control, top left; 7 pin module (large) - electronic module that does timing control, used with coil-in-cap distributors, top right. Finally found EXACTLY what my symptoms are. The real thing has a calibrated spark gap that will properly load an HEI coil whereas the homemade unit won't present as much of a challenge to your coil. A vehicle's Toyota Pickup Ignition Coil takes low-voltage charge from the vehicle's battery and transforms it to an increased voltage so that the spark plugs can transmit a spark across the spark plug gap. Just gonna replace the whole distributor. engine won't run. The signs of a failing ignition coil include backfiring, starting issues, lowering gas efficiency, engine misfiring, vehicle stalling and worn out spark plugs. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. The electronic ignition is only as good as the coil you use. The HEI design incorporates the vacuum advance mechanism, the ignition coil and a permanent magnet assembly that has a pole lined with teeth and a pick-up coil. MSD PICKUP COIL. The distributor assembly does NOT have to be removed to replace the pick-up coil for the 1985-88 HEI distributors. I just know my car won't start, and i need it to. Astro Ignition Coil. The cap has a section with two potential plug ins. The source coil produces the power. (has run twice tho) comes up with p0335 rpm noise. Mid to late 80's F-body vehicles had an slim HEI w/external coil, BUT these are not stand-alone units (no vacuum advance, timing is computer controlled). The iginition waveform (coming off coil neg. I have also replaced the Coil Wire. A bad pickup coil may mean a lack of engine spark because the spark plugs are not receiving the proper information to fire correctly. The ignition coil is truly an amazing little device. temperature Of the system reduced, further increasing the reliability and life of the HEI system. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35. Your vehicle may already have an O2 sensor bung welded into the exhaust. With the exception of firewall clearance problems in various vehicles, this should apply to swapping most any GM points type distributor to HEI. Checking & Replacement Of The HEI Pick-up Coil. To test the pickup coil, first disconnect the white and green module leads. The GM HEI module can easily be mounted remotely. HEI for your Stock Dizzy; PCV for your 216/235/261; Spin-On Filters & Full Flow Oil; Fuel System Revelations; Engine Timing Tips; Total Rebuild: 1959 235; Rebuilders Checklist; ID Casting # Matrix; Head Torque Specs; 216 Valve Oiler Diagram; Fuel Filter Placement; Air Filter Options; Timing Your Engine; Tuning Your Vintage GM 6 Cylinder; Valve. You may have to register before you can post: click the register link above to proceed. Very rare to lose a pickup coil. If the hot wire checks good then the problem could be with one of the electronic components inside the distributor. General Motors HEI Ignition Control with MegaSquirt-II. Typically it 5 and 7 that cross fire. Remove the gear and tanged washer, then check the shaft for burrs. In my car my ignitor/ignition module is hard wired in with the pick-up coil. MSD PICKUP COIL; Click to view larger image. that is on the front right of the conector pad. Heat causes expansion. I just received my HEI in the mail today and it has no instructions. The solution for the crossfire is to not run your plug wires parallel. Tried parts from 2 others but no luck. The HEI design incorporates the vacuum advance mechanism, the ignition coil and a permanent magnet assembly that has a pole lined with teeth and a pick-up coil. In my Jeep CJ-7, I didn't have one of those rare factory tachs so I chose the Autogage Tachometer 3-3/4 inch with an 8,000 RPM range in a black finish to be mounted on the steering column of the Jeep. High performance upgrade to the stock HEI coil. when the 2 pick up wires are connected to fitech and black wire is hooked up to white wire on msd 6al and setting is set to vr+coil and key cycled. I think the distributor is not grounded properly. Overlooking the basics will leave to frustration and unnecessary time and expense. NOTE: Some 5-pin models may experience a hesitation or stall on deceleration. We recommend a complete package for best results. ITS BETTER TO CONNECT THE NEGATIVE SIDE OF THE PICK UP COILS TO THE W TERMINAL ON THE HEI MODULE. Could that be the problem area. I would need to fabricate a better fitting bracket. On a single coil ignition system, a coil failure will cause the engine to quit and prevent it from starting. The pickup unit (the star thing that mounts on the distributor housing around the distributor shaft under the advance weights at the same height as the star mounted on the distributor shaft), module, advance weights/springs, cap, rotor, and coil are all standard GM HEI parts. It replaces the stock ignitors, coils and spark plug wires with readily available GM parts. Pick up an advance curve kit that contains various springs so you can experiment with re-curving the distributor. " "The third pickup coil has the same polarity as one of the other coils, but it has longer leads which are necessary in its application. A few years ago, I converted an older street bike to a GM HEI ignition. • A pickup coil contains a coil of wire, and the resistance of. Applications include: 283, 305, 307, 327, 350, and 400 small blocks. The pickup coil usually fails from vacuum advance motion of the 2 wires. If you suspect the condenser is going bad, you can sometimes tell by watching the engine run while it is in idle. any fluctuation or no reading. The HEI module is designed to supply the E-core coil with the full-system voltage of generally 14. For starting purposes, there was a 12 volt override supplied by a separate wire from the “R” terminal on the starter solenoid to the ignition coil. HEI pickup coil resistance should be between 400 and 900 ohms, wire to wire, NO resistance, either wire to ground. Search Over 30,000 Corvette Parts And Accessories To Restore 1953-14 Corvettes. To upgrade from points to an HEI, begin by obtaining a known HEI, or freshen one up that is in good shape (i. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35. HEI Distributors XXXposed! Here is a great description of how to tell the difference between even fire and odd fire HEI distributors. If you do not already have a proper locking HEI power plug (or tach plug if you need one), they are available separately. Once I put a new one in. Permanent magnet and pick up coil; The HEI system controls the primary current in the ignition to time the spark via a magnetic signal of the pick up coil. Spectra Premium is specialized in aftermarket, OEM and tooling automotive components for heating & cooling, fuel delivery, and engine management systems. A few years ago, I converted an older street bike to a GM HEI ignition. Works great!. Physical Installation. I ran into two problems along the way: The OEM coil location on a slant is tight and the bracket I made for the HEI coil interfered with the fuel pump. Breaker point ignitions are simple and inexpensive. Finding 12v Sources in a Car: When installing any electronic device in a vehicle, you will always be presented with the task of powering the device. I have a 1972 Chevy 3/4 4x4 with a 350. Pickup Coil's create a very wide range of voltage depending upon the RPM. Failure to retain proper orientation here can lead to intermittent "no start" or "no power" problems. Part Type / Distributor Replacement Parts. Finally, finish the re-assembly with a new rotor and cap. To indentify which wiring diagram fits your application, remove the distributor cap and rotor and locate the. (SUPER DISCOUNT) US $11. I use a thick keyed wire from fuse box to ignition. I would try a rotor first, long time ago, I replace everything in a HEI, and the problem was a hole in the rotor you can not see. If a spark plug or plug wire is open or has excessive resistance, the ignition coil's output voltage can shoot higher. This happens when the ignition coil or module becomes too hot. When the teeth are aligned, the magnetic field increases, which induces a electric current through the pick up coil windings. Theres not even a tiny spark does not even hurt to touch the end of the plug. hei distributor. In addition to the module, you will find the ignition coil, the pick-up coil, the magnetic pick-up assembly, and the mechanical and vacuum advance units- all nestled tightly under the cap. The HEI coil usually doesn't quit without some warning. eBay Logo: 13 product ratings - Msd Ignition Pick-Up Coil 84661. HEI experts, please chime in!. i got my meter out and read across the pickup coil, it tested good. " "The third pickup coil has the same polarity as one of the other coils, but it has longer leads which are necessary in its application. We recommend a complete package for best results. See Figure 1. ) For each item in your list, identify the wires you need to connect from the list and wiring diagram below and your vehicle wiring diagram. What you need:Distributor cap, rotor, base (this distributor is a two piece type, with a base that mounts to the motor and a cap that clips to the base), spark plug wires, and ignition coil. Yamama no longer supports the XS triples with replacement parts such as ignitors, coils, and pulse or pickup coils are not available in most cases. The cap has a section with two potential plug ins. INSTALLATION INSTRUCTIONS 5 AUTOTRONIC CONTROLS CORPORATION • 1490 HENRY BRENNAN DR. The second concerns the gauge of wire feeding the HEI distributor. MSD's Blaster 2 Coil. The high voltage pickup was a capacitive clamp that clipped unto the coils high voltage lead, but developed huge problems for them back in 72 when the HEI first came out. Troubleshooting the HEI coil in cap ignition. The mileage between failures is random: 3k, 5K, 8K. " "The third pickup coil has the same polarity as one of the other coils, but it has longer leads which are necessary in its application. Testing Pickup coil-Test 1 should read infinite at all times. The ECM (via pin 2) controls electrical current flow through the coil. Pickup Coil Testing • The pickup coil, located under the distributor cap on many electronic ignition engines, can cause a no-spark condition if defective. Ignition problems that can cause misfires include worn or fouled spark plugs, bad plug wires, moisture on the plugs or plug wires, or a weak or dead ignition coil (in multi-coil DIS or COP systems). The pickup coil in the distributor? !976 should be an HEI distributor. If you suspect the condenser is going bad, you can sometimes tell by watching the engine run while it is in idle. Used it right away after getting it, and, it worked, great !. ~ Pick-up coil continuity is tested by connecting the ohmmeter (on low range). I didn't write them down after i measured them. To help you out, this video, aimed at mechanics, will help you diagnose the problem by using a lab scope and inductive pickup to test a coil on a spark plug. BT: The module is probably the most common problem, but I had a car in which it was the coil. Like DIS coils HEI coils have very low primary coil resistance, typically under 1 Ohm. All these parts are from a 1982 Ford F-150 Pick Up Truck With A 300 CID I-6 Engine. He built it using an Oldsmobile HEI which turned the correct direction. An HEI coil has very low primary resistance, typically in the range of. eBay Logo: 13 product ratings - Msd Ignition Pick-Up Coil 84661. There is much more on this on the GM HEI page. The Car has appx 675 hp. High performance upgrade to the stock HEI coil. This pattern also could be caused by an intermittent circuit in the coil sec-ondary winding or the coil lead itself. time at high rpm. The primary coil is still available from a Lucas distributor and is cheaper than the universal coil Jaguar sells to replace the two V12 coils. High performance upgrade to the stock HEI coil. Test em, if all looks good, take the module to a parts store, they test em for free. When I go to set it lower the car will die and spit out the carb. pick-up coil in distributor. , EL PASO, TEXAS 79936 • (915) 857-5200 • FAX (915) 857-3344 GM HEI, INTERNAL COIL DISTRIBUTORS There are three style large cap HEI distributors. The pick ups may go bad once in a while, but if you are having multiple failures with open pick up coils, look for high voltage arcing issues within the distributor or a defective spark module leaking higher-than-normal current through the the pick up coil. HEI Ignition swap on Pontiac/GMC. • The pickup coil must generate an AC voltage pulse to the ignition module so that the module can pulse the ignition coil. If spark is found, the problem may be the TFI module or the PIP (profile ignition pickup or reluctor in the distributor) so go to step 5. Distributor comes with cap rotor dragon fire coil dragon fire hei module housing adjustable vacuum advance canister and proper drive gear. I have replaced the cap, coil, and alternator. Most people who look into making improvements – major or minor – to a GM-built inline-6 will eventually encounter Tom Langdon’s name. Chevrolet Malibu Ignition Module or Coil May Fail Causing Engine Misfire - 152 reports. temperature Of the system reduced, further increasing the reliability and life of the HEI system. Conversely, if you pull a known working plug wire and put it on the unknown HEI engine, the timing light should work. "If you have an HEI Distributor, it could be three things that will cause a no spark situation. Then of course, the safety aspect. Learn about this problem, why it occurs, and how to fix it. HEI Problem (1/29) 6/2/14 9:15pm. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35. Checkout DIS ignition systems are much better in terms of reliability with less moving parts to fail however there is still a handful of us that cling onto old school distributors. The pick up coil is located at the base of the distributor and plugs into the ignition module. Re: 4 stroke HEI Conversion i thought i read use a ignitor out of a chevy hei distributor and a coil pack off a 3800 engine? I have a rev limiter on mine it cuts out around 4000 rpm i have the governer max out !!. Do not use a test light. Mid to late 80's F-body vehicles had an slim HEI w/external coil, BUT these are not stand-alone units (no vacuum advance, timing is computer controlled). Here is a link to the entire article. You can use many different coils in the conversion. The idea behind the HEI system was great, to incorporate an electronic ignition module, magnetic trigger device and ignition coil into a single assembly that would deliver a hot spark. Then I put both multi meter leads on pickup coil terminals it showed infinite again instead of 800-1500ohms. Best Answer: GM HEI systems are pretty bulletproof, their weak points were the pickup coil wires breaking from flexing from the vacuum advance and the rotors sometimes get hole burned in them from all the spark the HEI makes. Rare until high miles, but fatal when it happens. when the 2 pick up wires are connected to fitech and black wire is hooked up to white wire on msd 6al and setting is set to vr+coil and key cycled. The pickup coils are wound opposite direction for CW and CCW and the screw holes are offset so the magnets can only be installed one way, but CW and CCW magnets have opposite polarity, North up on one and. BT: The module is probably the most common problem, but I had a car in which it was the coil. There was a solid ground from that unit directly to my battery. The high voltage pickup was a capacitive clamp that clipped unto the coils high voltage lead, but developed huge problems for them back in 72 when the HEI first came out. I'm not trying to read a value, but rather just observe the signal to see if it is causing the intermittent problem. 1986 hei distributor discussion in the Tractor Talk forum at Yesterday's Tractors. A few years ago, I converted an older street bike to a GM HEI ignition. MSD PICKUP COIL; Click to view larger image. A-Team Performance HEI Complete Distributor Straight 6 Cylinder 240 and 300 65K Coil Compatible With Ford F100 F150 F250 E100 E150 One Wire Installation Blue Cap 4. (Measuring actual coil inductance, resistance, & capacitance outside of a lab is not doable - you have to disassemble the thing to get meaningful readings. Disassembled HEI (Not shown: roll pin for distributor gear, spring clip to retain pickup coil; screws to retain ignition coil and cover, and plastic grease reservoir seal. 1988 Pontiac Firebird : Engine Electrical > Distributor Ignition System > Troubleshooting > HEI System > Pickup Coil Pickup Coil 1. After looking at the waveforms, I see that both C-EI & HEI use positive polarity, ie. Unplug the Pick-up Sensor (lead from Distributor). Gap spacing has a large effect on pickup coil voltage. I wondered if the waveform is "conditioned" further within the ignition module, but have not seen anything to verify that, and am now of the opinion that the adv-ret is a "dumb" system, at least on the simple CDI's used on Ducatis etc. In this case, the Customer Care team will remove your account from auto-renewal to ensure you are not charged for an additional year and you can continue to use the subscription until the end of your subscription term. Unfortunately their power output is limited and they require routine maintenance to work properly. Remove distributor cap and mark, with paint the housing in relation to the block and also mark the rotor in relation to the distributor housing. I swung by Napa auto parts, picked up a module & pickup coil there. Disassembled HEI (Not shown: roll pin for distributor gear, spring clip to retain pickup coil; screws to retain ignition coil and cover, and plastic grease reservoir seal. With 50,000 volts, an electronic advance and an extremely accurate magnetic pick-up that never requires adjustment, it provides a hotter spark and more reliable, quicker starts than the original points & condenser set-up. On 1996 and newer vehicles, the OBD II system should detect coil problems as well as misfires and generate a fault codes that identify the problem coil or cylinder. This is a Chinese hei knockoff dist I believe, any idea on what reading to expect? If the coil pickup checks out I will be reinstalling the module with a ground wire attached and see if there's any difference. Breakerless electronic ignitions can put out more power than points but cost more money. The distributor has three electronic parts which make it fire. I decided to buy a n HEI from Summit. Could my distributor be bad? It is only 1 week old. Felt like a fuel problem so rebuilt the carb and put in a new fuel pump. His engine has the Performer intake and he had to do some very slight grinding on a boss that's at the front of the intake but that was all. MSD ignition problems I have been running a MSD streetfire ignition system with the billet mad streetfire distributor on my 450hp 388 stroker for about 4months now without any problems. I rebuilt the brakes, and replaced the master cylinder. Well, it makes sense at this point to just run through a systematic check of the distributor wires on your chevy small block V8 engine to be sure the firing order is correct. Cars and trucks today are running about 100,000 volts and you put the same gasoline in your tractor and try to fire it with a 10,000 volt coil. Disconnect the coil wire so the engine can't fire or backfire. The coil can be check with a. I don't know much about reading multi meters though, thats for sure. The solution for the crossfire is to not run your plug wires parallel. Price was $21. 1988 Pontiac Firebird : Engine Electrical > Distributor Ignition System > Troubleshooting > HEI System > Pickup Coil Pickup Coil 1. Then of course, the safety aspect. If you need to just test the ignition coil, your starting point is TEST 3: Testing The Ignition Coil's High Tension Wire. • The pickup coil must generate an AC voltage pulse to the ignition module so that the module can pulse the ignition coil. Coil is in engine bay, Turbo 400 with 3500 stall and 4:11 diff. Set the engine to #1 TDC. Well, there is an ignition problem that can cause this when the engine gets hot and it stalls. They won't be able to show a primary short. 1973 - 1979 F-100 & Larger F-Series Trucks - Pickup coil testing? intermittance possible? - hey guys im curious if my pickup coil is bad although the truck still runs? i dont know if theres such a thing as a p/u coil going bad or on its way out or weaken over time?. Find MSD Magnetic Pickups 84661 and get Free Shipping on Orders Over $99 at Summit Racing! The MSD magnetic pickups are the same high-output assemblies that are currently found in all MSD distributors. Hei Ignition Capacitor Will heico corporation nyse hei meet your expectations regional and general aviation markets the fsg is a supplier Has signed an agreement to become the uk and ireland distributor for 3d plus a world leading manufacturer of advanced high density 3d microelectronics products for space applications 3d plus a Manufactured by. I carry a spare module, far simpler to change on the road (no adjustments). I rebuilt the brakes, and replaced the master cylinder. Disassembled HEI (Not shown: roll pin for distributor gear, spring clip to retain pickup coil; screws to retain ignition coil and cover, and plastic grease reservoir seal. I probably shouldn't say it, but so much for Made in the USA. The only unit that tested bad was the control module that I had tested at AutoZone. Once I put a new one in. The fact-checkers, whose work is more and more important for those who prefer facts over lies, police the line between fact and falsehood on a day-to-day basis, and do a great job. Today, my small contribution is to pass along a very good overview that reflects on one of Trump’s favorite overarching falsehoods. Namely: Trump describes an America in which everything was going down the tubes under  Obama, which is why we needed Trump to make America great again. And he claims that this project has come to fruition, with America setting records for prosperity under his leadership and guidance. “Obama bad; Trump good” is pretty much his analysis in all areas and measurement of U.S. activity, especially economically. Even if this were true, it would reflect poorly on Trump’s character, but it has the added problem of being false, a big lie made up of many small ones. Personally, I don’t assume that all economic measurements directly reflect the leadership of whoever occupies the Oval Office, nor am I smart enough to figure out what causes what in the economy. But the idea that presidents get the credit or the blame for the economy during their tenure is a political fact of life. Trump, in his adorable, immodest mendacity, not only claims credit for everything good that happens in the economy, but tells people, literally and specifically, that they have to vote for him even if they hate him, because without his guidance, their 401(k) accounts “will go down the tubes.” That would be offensive even if it were true, but it is utterly false. The stock market has been on a 10-year run of steady gains that began in 2009, the year Barack Obama was inaugurated. But why would anyone care about that? It’s only an unarguable, stubborn fact. Still, speaking of facts, there are so many measurements and indicators of how the economy is doing, that those not committed to an honest investigation can find evidence for whatever they want to believe. Trump and his most committed followers want to believe that everything was terrible under Barack Obama and great under Trump. That’s baloney. Anyone who believes that believes something false. And a series of charts and graphs published Monday in the Washington Post and explained by Economics Correspondent Heather Long provides the data that tells the tale. The details are complicated. Click through to the link above and you’ll learn much. But the overview is pretty simply this: The U.S. economy had a major meltdown in the last year of the George W. Bush presidency. Again, I’m not smart enough to know how much of this was Bush’s “fault.” But he had been in office for six years when the trouble started. So, if it’s ever reasonable to hold a president accountable for the performance of the economy, the timeline is bad for Bush. GDP growth went negative. Job growth fell sharply and then went negative. Median household income shrank. The Dow Jones Industrial Average dropped by more than 5,000 points! U.S. manufacturing output plunged, as did average home values, as did average hourly wages, as did measures of consumer confidence and most other indicators of economic health. (Backup for that is contained in the Post piece I linked to above.) Barack Obama inherited that mess of falling numbers, which continued during his first year in office, 2009, as he put in place policies designed to turn it around. By 2010, Obama’s second year, pretty much all of the negative numbers had turned positive. By the time Obama was up for reelection in 2012, all of them were headed in the right direction, which is certainly among the reasons voters gave him a second term by a solid (not landslide) margin. Basically, all of those good numbers continued throughout the second Obama term. The U.S. GDP, probably the single best measure of how the economy is doing, grew by 2.9 percent in 2015, which was Obama’s seventh year in office and was the best GDP growth number since before the crash of the late Bush years. GDP growth slowed to 1.6 percent in 2016, which may have been among the indicators that supported Trump’s campaign-year argument that everything was going to hell and only he could fix it. During the first year of Trump, GDP growth grew to 2.4 percent, which is decent but not great and anyway, a reasonable person would acknowledge that — to the degree that economic performance is to the credit or blame of the president — the performance in the first year of a new president is a mixture of the old and new policies. In Trump’s second year, 2018, the GDP grew 2.9 percent, equaling Obama’s best year, and so far in 2019, the growth rate has fallen to 2.1 percent, a mediocre number and a decline for which Trump presumably accepts no responsibility and blames either Nancy Pelosi, Ilhan Omar or, if he can swing it, Barack Obama. I suppose it’s natural for a president to want to take credit for everything good that happens on his (or someday her) watch, but not the blame for anything bad. Trump is more blatant about this than most. If we judge by his bad but remarkably steady approval ratings (today, according to the average maintained by 538.com, it’s 41.9 approval/ 53.7 disapproval) the pretty-good economy is not winning him new supporters, nor is his constant exaggeration of his accomplishments costing him many old ones). I already offered it above, but the full Washington Post workup of these numbers, and commentary/explanation by economics correspondent Heather Long, are here. On a related matter, if you care about what used to be called fiscal conservatism, which is the belief that federal debt and deficit matter, here’s a New York Times analysis, based on Congressional Budget Office data, suggesting that the annual budget deficit (that’s the amount the government borrows every year reflecting that amount by which federal spending exceeds revenues) which fell steadily during the Obama years, from a peak of $1.4 trillion at the beginning of the Obama administration, to $585 billion in 2016 (Obama’s last year in office), will be back up to $960 billion this fiscal year, and back over $1 trillion in 2020. (Here’s the New York Times piece detailing those numbers.) Trump is currently floating various tax cuts for the rich and the poor that will presumably worsen those projections, if passed. As the Times piece reported: