How to Diagnose and Fix your HEI Distributor. With driving footage.
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- čas přidán 28. 08. 2022
- Seriously? Now what's wrong... when we went Autocrossing, do you remember how the GTO was misfiring? It's time to test, diagnose, and discuss the symptoms of my HEI distributor. HEI stand for High Energy Ignition, which basically increases fuel burn, by pumping over 50,000 volts to each spark plug. BUT, these things do fail, so we'll test the Primary Coil, the Secondary Coil, the Magnetic Pick Up coil, and our wiring. Lastly, we get to do a test drive, because we still have to test our chassis mods.
New FMG hats are here! www.etsy.com/shop/fastmontysg...
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We'll also install a Pertronix D72000 Flamethrower HEI III GM 4 Pin Module, including programming of their digital rev limiter. Buy it on Amazon;
www.amazon.com/dp/B019XF764K?...
Below are the test specs for HEI Distributors;
Primary Coil;
0.4 to 1.5 ohms
Secondary Coil;
6k to 10k ohms
Magnetic Pickup Coil;
800 - 1000 ohms
The New HEI wire harness I sourced is made by Pertronix, here;
www.amazon.com/dp/B001CMZ6RM?...
The Pertronix Flame Thrower HEI III can be found here;
www.amazon.com/dp/B001CMZ6RM?...
This channel is all about how to's and what to watch out for, when working on your own car. I'm also fresh off of installing a full FiTech Fuel Injection system, as well as installing and test driving a New TREMEC TKX from Silver Sport Transmissions. Subscribe to watch more projects on this built, not bought, 1969 Pontiac GTO.
Playlists of interest;
Hydraulic Clutch and Tremec TKO/TKX install;
czcams.com/users/playlist?list...
FiTech Fuel Injection Install;
czcams.com/users/playlist?list...
Here's the original Hydraulic Roller Lifter Fail Inspection, and process:
• Something is still WRO...
Here's the Official Part 1, where Mike starts the preparation of Engine removal
• Pontiac V8 Camshaft Re...
Here's the start of the TREMEC installation, • How to install a Wilwo...
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Replace that dielectric grease ASAP, its more of an isulator and not for heat transfer, you will kill that HEI module quickly. You need "DOW 340 Heat Sink Compound", its good for up to 350F, its the only grease i use personally for my own HEI distributor projects.
I’m glad you found the problem BUT you shouldn’t use Jesus’ name in vain.
0 gauge wire is bigger than 1 gauge if you're using a tan and you're going to a 12 you're making the wires smaller
Ten gauge wire is BIGGER THAN 12 Guage!
vapor lock is a myth
I bough a dui just like that and the same pins fell out on me like that. A 300 dollar unit and quality of dui is terrible.
HEI? AFA? (Another Freaking Acronym) Why doesn't anyone know that before you are ever allowed to use an acronym,you must first must define it!
I replaced everything in the Distributer, including the Magnetic coil, from Davis Universal Distributer and couldn't get it to fire , this is on my 64 Ford Galaxie 500 with Ford 460 engine, after a week of trying I called Brian at DUI and he explained how to adjust the Magnetic coil, it fired right up, firs crank, this may help anyone who has to change out the Magnetic coil, that was news to me, Best to you all.
The more electronics you have under the hood will leave you scratching your head when the car dies. In my case on my 70 Z/28 I ran a Pertronix for 15 yrs before it gave me problems when the engine reached operating temp. It finally died one night. The same thing happened with my Crane XR-i module. I was going to try an Accel unit until I read the reviews which sometimes are dead out of the box. Therefore I’m back to using points since I have plenty. I am also running with an analog MSD 6AL 6420 because the digital boxes are junk today.
Actually, they designed the hei for longer service intervals. When points were in use, they had to be serviced every three months or 3,000 miles. . Getting a higher voltage output was an added bonus
First thing I did was check for fuel at the carb. It was fine. I then checked for spark on the plugs, it was not fine. I then checked for 12V at the distributor, it was fine. I then followed your steps. All three of my coils were within spec. I then replaced the ignition module and the truck fired right up.
This is a great video for HEI diagnosing for those of us who don't know how everything works. I converted my old truck's 300 6-cyl to a HEI distributor and found one of the terminals was also out of place. Still no tach signal so now I know to go back in and check the other connector + test battery input voltage.
Yes, my friend you found the culprit. I must compliment you on your video production--they are getting better all the time. As a fellow Pontiac enthusiast, I was glad to see that you wanted to autocross the GOAT. I did quite a bit of autocrossing with my 1979 TA 6.6 (1979-1984) and stymied the competition back then. You've made some great strides with all the work you've done on the car and the modern performance elements you've included are great. I had no idea the Flame Thrower module had the rpm limiter. Keep up the good work. Two thumbs up!
Thanks for posting this. The problem you had with the push on connector was the same problem I had.
DUI came in today. Watched your video. Checked it right out the box, and wouldn’t you know.. thank you buddy
Had the same issues… troubleshooted and fixed immediately. Runs like a gem 💎 (1970 Chevy C10, 8 cyl., 350 SB)
I like your video about the short in the HEI wiring between the modular wires you go in to a explaining the do’s and don’t. You answer my question that my 1983 Buick was acting up during the time I was driving it out on high way
My Mallory distributor crapped out on me yesterday. Went to start and no fire. We replaced module but didn’t fix it. So $ 225 tow bill to the house. I’ll use your video to diagnose my problem. Thanks!
thank you for this video, i wanted to buy also the pertronix hei module but it has multiple sparks and they say it can not provide a clean tach signal to your EFI. but you clearly proved everybody wrong! It runs great.