HEI Distributor - The 1947 - Present Chevrolet & GMC Truck Message Board Network

*nbpro* · 08-15-2010, 11:03 PM

What is the best way to test the HEI Distributor to make sure everything is working properly? Reason I ask this, during all of the robbing of parts my nephew did, I think he swapped distributors on me. Is it possibly the gears are worn out? It's just not acting right. Doesn't seem to be getting the right amount of fire to the plugs, has a new rotary cap, and button, coil. well all new inside Just can't get it to time right. You can set it, and next time you start it it's off again. That's why I'm thinking maybe the gears are worn out. O it has a new timing chain and cam. Well, not new, but a couple of years old. Everything was working fine, before parts were stripped What would be a good cheap replacement for a 81 GMC Sierra Grande 305 SBC

*nbpro* · 08-15-2010, 11:58 PM

Skip White looks like my best buy

irishman999 · 08-15-2010, 11:59 PM

Does your distributor have 4 wires coming out of the back going to a plug in the engine compartment? The wires should be going into the firewall on the passenger side.

*nbpro* · 08-16-2010, 12:06 AM

my brother just told me he's pretty sure it was swapped and the distributor is pretty worn out. he remembers that my nephew telling him he needed a new one for his. so that's gonna be my problem. if you wanna delete this, that's fine. thanks for the help.irishman999

irishman999 · 08-16-2010, 12:18 AM

Thanks to this site i learned there was a spark control module on my truck, it seemed to be causing me timing problems. I was just wondering if your truck possibly had one.

*nbpro* · 08-16-2010, 12:26 AM

spark control module is new

cableguy0 · 08-16-2010, 12:35 AM

Its still most likely your problem. It can change the timing. Your best bet is to just bypass it. They didnt work right when they were new. The aftermarket ones never work right. Just unplug it from the distributor and splice the green and black wires. Your esc distributor will now function like a normal hei.

irishman999 · 08-16-2010, 12:44 AM

No body mentions to leave it unplugged after you splice it haha. I plugged mine back in and drove it a while, now im having some similar problems with my distributor.

*nbpro* · 08-16-2010, 12:45 AM

splice the green and black wires to each other ?

cableguy0 · 08-16-2010, 12:46 AM

Yup and then just leave it unplugged. After you do that you will be able to set your timing and it wont move.

*nbpro* · 08-16-2010, 12:56 AM

nice litte right up Changing To A Non-ESC Distributor
http://www.73-87.com/7387garage/drivetrain/escrepl.htm

08-15-2010, 11:03 PM	#1
nbpro Account Suspended Join Date: Dec 2008 Location: Huntsville,AL Posts: 2,119	HEI Distributor What is the best way to test the HEI Distributor to make sure everything is working properly? Reason I ask this, during all of the robbing of parts my nephew did, I think he swapped distributors on me. Is it possibly the gears are worn out? It's just not acting right. Doesn't seem to be getting the right amount of fire to the plugs, has a new rotary cap, and button, coil. well all new inside Just can't get it to time right. You can set it, and next time you start it it's off again. That's why I'm thinking maybe the gears are worn out. O it has a new timing chain and cam. Well, not new, but a couple of years old. Everything was working fine, before parts were stripped What would be a good cheap replacement for a 81 GMC Sierra Grande 305 SBC Last edited by nbpro; 08-15-2010 at 11:46 PM. Reason: O it has a new timing chain and cam. Well, not new, but a couple of years old

08-15-2010, 11:58 PM	#2
nbpro Account Suspended Join Date: Dec 2008 Location: Huntsville,AL Posts: 2,119	Re: HEI Distributor Skip White looks like my best buy

08-15-2010, 11:59 PM	#3
irishman999 Registered User Join Date: May 2010 Location: Reno Ne-VAH-da Posts: 594	Re: HEI Distributor Does your distributor have 4 wires coming out of the back going to a plug in the engine compartment? The wires should be going into the firewall on the passenger side.

08-16-2010, 12:06 AM	#4
nbpro Account Suspended Join Date: Dec 2008 Location: Huntsville,AL Posts: 2,119	Re: HEI Distributor my brother just told me he's pretty sure it was swapped and the distributor is pretty worn out. he remembers that my nephew telling him he needed a new one for his. so that's gonna be my problem. if you wanna delete this, that's fine. thanks for the help.irishman999 Last edited by nbpro; 08-16-2010 at 12:16 AM.

08-16-2010, 12:18 AM	#5
irishman999 Registered User Join Date: May 2010 Location: Reno Ne-VAH-da Posts: 594	Re: HEI Distributor Thanks to this site i learned there was a spark control module on my truck, it seemed to be causing me timing problems. I was just wondering if your truck possibly had one.

08-16-2010, 12:26 AM	#6
nbpro Account Suspended Join Date: Dec 2008 Location: Huntsville,AL Posts: 2,119	Re: HEI Distributor spark control module is new

08-16-2010, 12:35 AM	#7
cableguy0 Senior Member Join Date: Apr 2000 Location: Delta,Pa Posts: 14,950	Re: HEI Distributor Its still most likely your problem. It can change the timing. Your best bet is to just bypass it. They didnt work right when they were new. The aftermarket ones never work right. Just unplug it from the distributor and splice the green and black wires. Your esc distributor will now function like a normal hei. __________________ Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member.

08-16-2010, 12:44 AM	#8
irishman999 Registered User Join Date: May 2010 Location: Reno Ne-VAH-da Posts: 594	Re: HEI Distributor No body mentions to leave it unplugged after you splice it haha. I plugged mine back in and drove it a while, now im having some similar problems with my distributor.

08-16-2010, 12:45 AM	#9
nbpro Account Suspended Join Date: Dec 2008 Location: Huntsville,AL Posts: 2,119	Re: HEI Distributor splice the green and black wires to each other ?

08-16-2010, 12:46 AM	#10
cableguy0 Senior Member Join Date: Apr 2000 Location: Delta,Pa Posts: 14,950	Re: HEI Distributor Yup and then just leave it unplugged. After you do that you will be able to set your timing and it wont move. __________________ Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member.

08-16-2010, 12:56 AM	#11
nbpro Account Suspended Join Date: Dec 2008 Location: Huntsville,AL Posts: 2,119	Re: HEI Distributor nice litte right up Changing To A Non-ESC Distributor http://www.73-87.com/7387garage/drivetrain/escrepl.htm



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