daytonajim00
Newbie
Posts: 39
Reg: 04-11-14
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03-06-23 10:49 AM - Post#2855410
Hello Everyone.
My 84 Chevy C10 was sitting for a few months and I finally got around to running it. I took the battery out to charge it but when I came back with fresh battery, my 1-wire alternator lead wire was dead shorting like I was welding. I tested resistance on the unhooked alternator and it was good.
I left the alternator wire off and was able to install the battery. I tried start the vehicle but it wouldnt fire. I tested a plug and found I was barely getting spark. Voltage drop at the battery was around 1.5 volts while cranking. I noticed the distributor cap was pretty hot. I took the cap off and found a burned coil to the point where melted plastic came out.
I ordered new Delphi coil and module, I just hope there's not some underlying issue where I burn the coil again.
Any idea what was going on here?
1984 Chevy C-10:
-350 (.060 Overbore)
-Elgin 1227-P cam (.450" lift, 232* DUR @ .050)
-GM Cast 3973487 heads (75cc)(1.97/1.5)
-Recurved Timing (15*,20*,10* Vac= 45* Total)
-Quadrajet M4ME (Rebuilt)
-TH350C
-Headers and dual exhaust |
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 Shepherd
Valued Contributor
Posts: 2843
Loc: Lake George, NY
Reg: 11-11-15
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03-06-23 05:26 PM - Post#2855432
In response to daytonajim00
Be sure the ground connection from the coil to the harness in the cap is installed correctly or this may happen again.
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daytonajim00
Newbie
Posts: 39
Reg: 04-11-14
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03-11-23 06:28 AM - Post#2855627
In response to Shepherd
The ground strap was in place.
I got a new Delphi coil and module. It started right up. A few circuits aren't working but I'll troubleshoot them later. I'm afraid to hook the 1-wire alternator back up. I think I want to bench test my spare 3-wire alternator and put that back on.
1984 Chevy C-10:
-350 (.060 Overbore)
-Elgin 1227-P cam (.450" lift, 232* DUR @ .050)
-GM Cast 3973487 heads (75cc)(1.97/1.5)
-Recurved Timing (15*,20*,10* Vac= 45* Total)
-Quadrajet M4ME (Rebuilt)
-TH350C
-Headers and dual exhaust |
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bobb
Super Senior Member
Posts: 6249
Loc: paradise
Reg: 09-05-03
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03-19-23 12:40 PM - Post#2855927
In response to daytonajim00
i would not use a 1 wire alternator. no idiot light provision.
| 70 L camino, grampa engine, g-force 5 spd, road rage suspension. Pray first before all else fails. |
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