Re: Starting on my 79 W150, could use some advice, ideas, help
[Re: furious]
#2537814
08/17/18 07:32 PM
08/17/18 07:32 PM
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Joined: Jan 2011
Posts: 16,094 Central Florida
larrymopar360
Stud Muffin
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Stud Muffin
Joined: Jan 2011
Posts: 16,094
Central Florida
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Great news that you had some time to work on it! Frame is looking great!
Facts are stubborn things.
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Re: Starting on my 79 W150, could use some advice, ideas, help
[Re: poorboy]
#2762579
04/11/20 07:47 AM
04/11/20 07:47 AM
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Joined: Dec 2014
Posts: 6,229 ohio
ruderunner
master
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master
Joined: Dec 2014
Posts: 6,229
ohio
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The ignition wire that would normally go to the + side of the coil on your Dodge now needs to go to the + terminal on your GM electronic ignition. If you have a tach, there should be a connection place on the GM dist to connect your tach lead that normally would have connected to the + coil wire on the Dodge stuff.
Can't help you on that GM 1 wire alt. They call it a 1 wire, but most I've seen have 2 wires, so I'm confused. LOL! Gene Poorboy is close on the distributor. The HEI system needs full voltage not the lower coil voltage of the Mopar system. Take the power from the keyed side of the ballast resistor. As for the alternator, iirc the second small wire is for a warning light. Not needed for the alternator to function. But you do have to bring the rpms up to activate the internal regulator. Honestly id keep the stock charging system because of the tricks you can do in case of roadside failure of the regulator or wiring.
Angry white pureblood male
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Re: Starting on my 79 W150, could use some advice, ideas, help
[Re: poorboy]
#2762760
04/11/20 04:49 PM
04/11/20 04:49 PM
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Joined: Sep 2003
Posts: 1,615 Table Rock Lake Missouri
furious
OP
top fuel
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OP
top fuel
Joined: Sep 2003
Posts: 1,615
Table Rock Lake Missouri
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The ignition wire that would normally go to the + side of the coil on your Dodge now needs to go to the + terminal on your GM electronic ignition. If you have a tach, there should be a connection place on the GM dist to connect your tach lead that normally would have connected to the + coil wire on the Dodge stuff.
Can't help you on that GM 1 wire alt. They call it a 1 wire, but most I've seen have 2 wires, so I'm confused. LOL! Gene Thank you very much, yeah I understand that. Just wanted to see if anyone has actually modified a schematic to include both mods. There will be a lot of crap and wires eliminated. I just may do it, as I was taught to use and read schematics.
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Re: Starting on my 79 W150, could use some advice, ideas, help
[Re: redraptor]
#2770249
05/01/20 08:20 PM
05/01/20 08:20 PM
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Joined: Sep 2003
Posts: 1,615 Table Rock Lake Missouri
furious
OP
top fuel
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OP
top fuel
Joined: Sep 2003
Posts: 1,615
Table Rock Lake Missouri
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Looks good so far. Thanks, it runs great and starts up instantly now after spending a little time on the tune today. i have a new question though. I put it up in the air running and put it in gear. Oddly, the front wheels turn and were running but the back ones were not. I messed around a little bit with the four wheel drive lever but it will only start in the one position that it is in. Anyone have any ideas? thanks in advance. Edit, I got my answer. the transfer case is acting like an open diff and the new back brakes a very tight.
Last edited by furious; 05/01/20 10:03 PM.
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Re: Starting on my 79 W150, could use some advice, ideas, help
[Re: ruderunner]
#2770251
05/01/20 08:44 PM
05/01/20 08:44 PM
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Joined: Sep 2003
Posts: 1,615 Table Rock Lake Missouri
furious
OP
top fuel
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OP
top fuel
Joined: Sep 2003
Posts: 1,615
Table Rock Lake Missouri
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The ignition wire that would normally go to the + side of the coil on your Dodge now needs to go to the + terminal on your GM electronic ignition. If you have a tach, there should be a connection place on the GM dist to connect your tach lead that normally would have connected to the + coil wire on the Dodge stuff.
Can't help you on that GM 1 wire alt. They call it a 1 wire, but most I've seen have 2 wires, so I'm confused. LOL! Gene Poorboy is close on the distributor. The HEI system needs full voltage not the lower coil voltage of the Mopar system. Take the power from the keyed side of the ballast resistor. As for the alternator, iirc the second small wire is for a warning light. Not needed for the alternator to function. But you do have to bring the rpms up to activate the internal regulator. Honestly id keep the stock charging system because of the tricks you can do in case of roadside failure of the regulator or wiring. Thank you, I ended up spending a couple days on the wiring with the manual. It is all working perfectly now, lights etc. I found out leaving the vacuum advance disconnected is the best way to go so far on the HEI. I had already decided to go with the one wire gm alternator and it is charging well by just using the 10 ga wire that was the feed from the dual field alternator. I had to switch locations with the connection on the bulkhead connector as like many mopars, the heat generated through that wire melts away the retention on the connector so you get a bad connection which creates more heat. I have eliminated a milk crate full of old wiring and parts.
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