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First_Gear 
AMC Addicted 
Joined: Jan/18/2010 Location: Mukilteo WA Status: Offline Points: 644 |
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 Posted: Nov/20/2021 at 3:31pm |
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I just had read this on the forum somewhere. Maybe it was Farna? I don't remember. Anyway just thought I would put it out there. Do you know what current the fet is rated for? That might tell us something.
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rgsauger
AMC Nut
Joined: Aug/17/2014 Location: Houston,TX Status: Offline Points: 311 |
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Posted: Nov/25/2021 at 9:26am |
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You could also get a late 70s or early 80s DurasPark distributor and use it to trigger an MSD 6A. That’s what I have in my jeep and I absolutely love it! Use the big distributor cap from a 1981 Ford 300 straight six engine. The MSD and hot coil made all the difference in the world.
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vinny
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Joined: Jan/05/2012 Location: Calgary Status: Offline Points: 2837 |
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Posted: Nov/25/2021 at 1:00pm |
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I am using the Petronix in a Delco distributor in a 67 232. Use the Petronix coil and full voltage, no resistor. Touch the key and it is started.
I also have a Delco HEI from a Chev 79 Nova IIRC but I haven't found the right gear for it yet. I would put that one in my spare 232 engine. Anybody know a P/N for that gear? I used that distributor in my 66 truck for a while before switching to a V-8 and it worked perfectly. HEI or Petronix, from my experience, they both work good.
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tomj
AMC Addicted
Joined: Jan/27/2010 Location: earth Status: Offline Points: 7539 |
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Posted: Nov/25/2021 at 2:28pm |
I believe I've read the AMC gear will fit the hei distributor, so you may already have one.
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1960 Rambler Super two-door wagon, OHV auto
1961 Roadster American, 195.6 OHV, T5 http://www.ramblerLore.com |
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vinny
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Joined: Jan/05/2012 Location: Calgary Status: Offline Points: 2837 |
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Posted: Nov/26/2021 at 3:36pm |
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I sent a Prestolite points distributor to a guy and he sent me back a defective something from a Jeep with two vacuum lines coming out of it. I tried that gear on the HEI but it was too big on the shaft. I guess I could have a repair sleeve machined to fill the gap.
If it were from a Delco distributor then yes I think it would fit the HEI but up here the only Delco distributors were on the US made Rambler Americans. Canadian built cars used the Prestolite. I don't know what brand distributor they used on the later Jeeps with a 232.
Edited by vinny - Nov/26/2021 at 3:54pm |
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farna
Supporter of TheAMCForum
Moderator Lost Dealership Project Joined: Jul/08/2007 Location: South Carolina Status: Offline Points: 19675 |
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Posted: Dec/09/2021 at 7:18am |
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First_Gear -- probably was me. I ran a Borg-Warner electric overdrive with an EFI system though. I didn't know if the (Jeep 4.0L, RENIX) electronic ignition module would like being grounded. Coil sat on top of the module, and I don't think I could ground the coil without grounding the module. So I put a relay in the power wire to the module so it quickly turned off/on. Grounding may have been fine, I just didn't want to burn a module up to find out. Since it's grounded for such a short time it probably would have worked for a while... until it didn't... Don't like being stranded without knowing exactly why!! No fun even then, but at least you know what needs to be fixed! Took me a few hours to find an O2 wire melted to the exhaust manifold where it fell. Who'd have thought a grounded out sensor wire would kill an engine? Did on the RENIX!!
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Frank Swygert
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vinny
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Joined: Jan/05/2012 Location: Calgary Status: Offline Points: 2837 |
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Posted: Dec/09/2021 at 4:07pm |
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Yes Tom, it looks like the gear from Prestolite 3227331 (75/76? Jeep 232) may fit the GM HEI. Any body know much about these Prestolite distributors and what causes them to fail? Rockauto has a picture of it. Edited by vinny - Dec/09/2021 at 4:18pm |
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tomj
AMC Addicted
Joined: Jan/27/2010 Location: earth Status: Offline Points: 7539 |
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Posted: Dec/09/2021 at 5:46pm |
Frank knows about them... I think the deal is, the signal from the distributor, to the electronic box, is very weak by nature, and the connectors get intermitent, high-resistance etc and make it fail. Cut, splice, solder the wires, clean the connector, etc might help. |
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1960 Rambler Super two-door wagon, OHV auto
1961 Roadster American, 195.6 OHV, T5 http://www.ramblerLore.com |
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farna
Supporter of TheAMCForum
Moderator Lost Dealership Project Joined: Jul/08/2007 Location: South Carolina Status: Offline Points: 19675 |
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Posted: Dec/10/2021 at 6:22am |
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What TomJ says. Soldering the wires is actually in a service bulletin issued by AMC shortly after they started using the things. A better gold plated connector or cleaning the connector often would work, but... The next thing that goes wrong is the plastic double diaphragm vacuum module (advance?). They go bad with age, and I don't think anyone makes a replacement. It uses the right gear for a GM HEI. So does the older AMC model Delco distributor. The Ford style distributor gear can't be used... makes sense!
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Frank Swygert
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vinny
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Joined: Jan/05/2012 Location: Calgary Status: Offline Points: 2837 |
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Posted: Dec/10/2021 at 9:54am |
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Thanks guys, you do know your AMC stuff.
Sure enough, the vacuum port of the 75/6 distributor is open. I pulled the gear to use on the HEI. Some material had to be removed from above the gear teeth to get the roll pin in. The GM gear does not have that excess height above the gear teeth.
Edited by vinny - Dec/16/2021 at 8:45am |
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vinny wrote: