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Old 12-06-2011, 09:25 PM   #1
Ron Man
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Default Installing HEI Ignition on 3PG Carts

Hi, All:

I decided to put together a short summary of my HEI conversion on my 3PG gasser. I found it frustrating searching thru threads and pulling bits of information from several places, and not really knowing if what I assembled was correct. So, without further adieu, here's what I did:

HEI Conversion on 3PG Cart

- Purchase an ignition coil and matchiing ignitor from a 1977 Chevy
Nova 4.1L I6
I got mine from Advance Auto for about $60.
See pics #1 and #2 below.

- Remove the stock ignitor from the cart and mount the new ignitor in it's
place. Be sure to apply conduction grease supplied with ignotor on the
backside to improve cooling. The ignitor can get HOT!
See pic #3 below.

- Remove the stock coil from the cart.

- Mount new coil. I chose to mount it close enough to the engine so I could
still use my stock spark plug wire. You can mount the coil sideways like I
did since it is not oil filled. I just drilled two holes on the cross member and
used long bolts to secure it.
See pic #4 below.

- Go to NAPA and get a spark plug connector and boot for the blunt end of
your stock plug wire and install them so your plug wire will plug onto your
new coil.

- Refer to attached wiring diagram that I found on this site. Note, the wires
from the pulsar to the ignitor needed to be reversed on my cart, or it would
not run!!!! See pic #5 below.

- Connect the BLUE wire from the pulsar
to the "G" terminal on the ignitor.
- Connect the RED wire from the pulsar
to the "W" terminal on the ignitor
- Connect the B terminal on the ignitor
to the "YELLOW/RED" wire on the solenoid.
- Connect the C terminal on the ignitor
to the "- TERMINAL" on the coil.
- Connect the + TERMINAL on the coil
to the "GREEN" wire on the solenoid.

Your cart should now run like a champ!!!
Attached Images
File Type: jpg GM Hei Ign Retrofit.jpg (79.2 KB, 158 views)
File Type: jpg IMG_1014.jpg (98.7 KB, 110 views)
File Type: jpg IMG_1015.jpg (82.0 KB, 108 views)
File Type: jpg IMG_1017.jpg (138.7 KB, 135 views)
File Type: jpg IMG_1011.jpg (168.5 KB, 122 views)
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Old 12-06-2011, 09:33 PM   #2
Ron Man
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Default Re: Installing HEI Ignition on 3PG Carts

One other thing, see pic below from 1989Marathon showing polarity on the coil. He figured it out and posted the pic.

Kudo's to 1989Marathon for coming up with the 1977 Chevy ignition retrofit and to whoever modified the factory wiring diagram for the HEI connections.
Attached Images
File Type: jpg HEI Coil Polarity.jpg (12.8 KB, 374 views)
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Old 08-22-2018, 06:16 PM   #3
verlinks
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Default Re: Installing HEI Ignition on 3PG Carts

Quote:
Originally Posted by Ron Man View Post
One other thing, see pic below from 1989Marathon showing polarity on the coil. He figured it out and posted the pic.

Kudo's to 1989Marathon for coming up with the 1977 Chevy ignition retrofit and to whoever modified the factory wiring diagram for the HEI connections.
:-Glad You Showed + And - Thanks
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Old 12-07-2011, 09:35 AM   #4
Dave Box
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Default Re: Installing HEI Ignition on 3PG Carts

Very nicely done Ron, perhaps an Administrator could pick this up and dump it in the stickies section.

Dave
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Old 12-07-2011, 10:33 AM   #5
Ron Man
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Default Re: Installing HEI Ignition on 3PG Carts

Quote:
Originally Posted by Dave Box View Post
Very nicely done Ron, perhaps an Administrator could pick this up and dump it in the stickies section.

Dave
Thanks Dave!!
Certainly not the level of your workmanship, but it works!!

I tried to post this in the stickies section but learned that I don't have write authority there.
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Old 12-07-2011, 10:23 AM   #6
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Default Re: Installing HEI Ignition on 3PG Carts

One other thing that I forgot. You need to trim two small "feet" from the backside of the new ignitor or it won't sit flat. This is important for heat transfer from the ignitor to the metal plate you're mounting it to. See pics below.
Attached Images
File Type: jpg IMG_1012.jpg (177.5 KB, 43 views)
File Type: jpg IMG_1013.jpg (150.5 KB, 37 views)
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Old 12-07-2011, 07:45 PM   #7
1lane66
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Default Re: Installing HEI Ignition on 3PG Carts

Great job Ron, you just saved me alot of time digging through the threads. Will get the parts tomorrow at work and hopefully get them on by this weekend and see what happens then. Donald Oh by the way $ on the carb ?
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Old 12-07-2011, 09:08 PM   #8
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Default Re: Installing HEI Ignition on 3PG Carts

Quote:
Originally Posted by 1lane66 View Post
Great job Ron, you just saved me alot of time digging through the threads. Will get the parts tomorrow at work and hopefully get them on by this weekend and see what happens then. Donald Oh by the way $ on the carb ?
Donald:

Thank you!! If you have any questions, just PM me. As for the carb, I paid $124 for it. Got it two weeks ago. I'll take $100 plus shipping.

Ron
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Old 12-07-2011, 07:56 PM   #9
bifferd
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Default Re: Installing HEI Ignition on 3PG Carts

Nice job that should work on the 244 cc too...might do this to my two carts a 88 and 82 ezgo
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Old 12-07-2011, 08:14 PM   #10
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Default Re: Installing HEI Ignition on 3PG Carts

What does 2pg mean vs 3 pg?
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