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#1 |
Registered User
Join Date: Jan 2010
Location: Sweet Home, Oregun
Posts: 49
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HEI wiring issues.
I just did a motor trans swap on my 73 that had been sitting for ten years or so. It did have a stock points setup with the resistance wire. Anyway, I deleted the wire for the points coil and ran a 12 gauge into the cab to go to the fuse box. Problem is I have no power source on the fuse box that stays hot while cranking. So I tried to mimic the wiring of the points style and ran an additional wire off the "R" post on the starter. Seems to me thats how it was to begin with, but still no fire. any ideas?
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#2 |
Next project: 1970 K10
Join Date: Feb 2004
Location: Fort Collins, Colo 80524
Posts: 6,685
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Re: HEI wiring issues.
I am certain there should be spots in the fuse block that stay hot while cranking, I've never owned a GM truck that didn't. I would probe everything in there again to be sure. If you still can't find one, I would think there are bigger problems in that fuse block.
At the very least, the purple wire running to the starter is hot while cranking.
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Bob 1970 Chevy K10 LWB "Goldie" 350/TH350 next project!! 1981 Chevy C10 LWB 355/TH350 - My son's truck LS SWAP FORUM! Tons of LS swap info here! PLEASE CLICK HERE TO SUPPORT THE GREATEST BOARD ON THE NET! CLICK HERE FOR THE FAQ INDEX by KRUE Last edited by glock35ipsc; 04-13-2010 at 01:12 PM. |
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#3 |
Registered User
![]() Join Date: Oct 2006
Location: Southern Kalifornia
Posts: 3,066
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Re: HEI wiring issues.
You can trace the wire that was on the solenoid and coil back to the fuse block(on engine side of firewall) Remove the wire and connector from the harness,look at the terminal and go to the auto parts store and get a new one for 12g. Run the power wire from the HEI to this spot. Does this make sense or does it sound like I am rambling?!hahaha
The picture is what the terminal looks like.
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#4 |
Registered User
Join Date: Jan 2010
Location: Sweet Home, Oregun
Posts: 49
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Re: HEI wiring issues.
Yep, checked several times with no hot leads during cranking. Even the terminal that held the original wire goes cold. I cannot splice in to the starter wire because then while the key was in the on position it would keep cranking the starter. Maybe I need to pull the block and clean all the connectors on back.
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#5 |
Registered User
Join Date: Nov 2007
Location: Franklin Indiana
Posts: 635
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Re: HEI wiring issues.
This is just a thought. I'm out of town so I cannot check this but isn't one of the small wires that are hooked to the solenoid the feed wire that keeps the power to the ignition while cranking? Someone with schematic should be able to check this out.
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My Truck's not leaking its marking its territory! |
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#6 |
Senior Member
Join Date: Jun 2007
Location: Pine Ridge Florida
Posts: 4,125
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Re: HEI wiring issues.
interested in what you find
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#7 |
Registered User
Join Date: Jan 2010
Location: Sweet Home, Oregun
Posts: 49
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Re: HEI wiring issues.
In the assembly manual for the delco points distributor it shows the wire coming off the R terminal on the starter selenoid. Thats supposed to give it the full twelve volts during cranking. Thats how I have it wired, in addition to a 12 gauge wire going to a key on hot wire in the fuse box. However its not firing that way. I may have a selenoid problem, but I cannot check because I dont have a starter test button. Just when I thought I had seen it all with this old truck.....
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#8 |
haha, ford guys...
Join Date: Feb 2007
Location: Visalia, CA
Posts: 576
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Re: HEI wiring issues.
sounds like a collum harness problem.
OR you can take advantage of this, run a hot off the bat on a switch hidden... theves would never know what hit em. |
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