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Author Topic:   Electrical problem 66 coupe dash
panamint
Journeyman

Posts: 3
From: Big Bear City CA USA
Registered: Jul 2002

posted 12-01-2002 08:07 PM     Click Here to See the Profile for panamint   Click Here to Email panamint     Edit/Delete Message   Reply w/Quote
I have a electrical problem with my son 1966 coupe. The wire that runs from the starter solenoid to the back of the amp gauge was melted and burned off the stud so it wasn?t hooked up. I ran a new wire to replace the entire wire. When I hooked up the battery ever was ok for a few minutes, then the smoke stared to roll. It melted the ground wire that is on the back of the instrument panel on that also holds the Constant Voltage Unit to the back of the cluster. Before the ground wire melted I found out that the case of the instrument panel when touched with the test light lit up. Thinking that I had a direct short I checked the Constant Voltage Unit with a tester and had continuity between the terminal of the Constant Voltage Unit and its outside case. I check another one of these units I had from another car and it tested the same way. Wouldn?t that make a direct short if when hooked up to power the outside of the Constant Voltage Unit have power going to it, the it would ground through the instrument panel. Sorry for the long post just want to try and make it clear. Can anyone help me out with this.
Thanks Scott
[email protected]

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V8 Thumper
Gearhead

Posts: 3529
From: Orange, Ca. United States of America
Registered: Dec 2001

posted 12-01-2002 09:41 PM     Click Here to See the Profile for V8 Thumper   Click Here to Email V8 Thumper     Edit/Delete Message   Reply w/Quote
Sounds like something is grounding out somewhere. I'd look for a worn spot in the wiring harness, maybe something worn against a sharp metal edge.
Just re-read your post, said 'ok for a few minutes, then smoke started to roll'. With the motor running, ignition on, or neither?

------------------
1965 GT coupe, 333ci aluminum headed/solid cammed stroker, four speed, 3.70:1 9"

All Blue Oval, no blue bottle
http://mustangsandmore.50megs.com/V8Thumper.html

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lyle29464
Gearhead

Posts: 827
From: Mt. Pleasant S.C.
Registered: Mar 2000

posted 12-01-2002 11:29 PM     Click Here to See the Profile for lyle29464   Click Here to Email lyle29464     Edit/Delete Message   Reply w/Quote
I would check to see if the alt. is shorted

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