Damage to electrical system - need advice
Thread Starter
Intermediate
Joined: Oct 2011
Posts: 44
Likes: 0
From: Dayton Ohio
Damage to electrical system - need advice
It's a long story, but the situation is that a battery was connected wrong when the person put it into my 77 vette. They then turned the key to start it but no lights lit up. After they told me this, the battery was connected correctly but when the key was turned no lights lit and the starter did not turn over. Looks like the electric system might have gotten fried. What would be the most likely things I should check to see if they needed to be replaced? Thanks....
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
Fusible links 'look' like a section of standard wiring with non-flammable terminators at each end. The insulation will not burn or catch on fire; but the wire inside will fry/melt and break circuit connection. If one or more of these are bad, they need to be replaced with REAL fusible links....not just standard wiring. They are located there FOR GOOD REASON. You will also find some located on or around the horn relay. You can detect failed fusible links by bending them in the middle. If they are flexible like normal wiring, they are likely OK. If they offer very little resistance OR excessive resistance or feel 'crunchy', they are TOAST inside and need to be replaced.
The fusible links are installed in GM cars for the exact circumstance that occurred with your car: electrical errors (owner or mechanic) or failed electrical components which create a dead-short for the wiring.
Last edited by 7T1vette; Oct 22, 2018 at 12:13 PM.
Drifting
Joined: Nov 2016
Posts: 1,964
Likes: 579
From: Pittsburgh PA
x3 start with fusible link.
I hate to admit it, but I too was foolish enough to hook my battery up wrong in my 68 the first time. everything went dead. fortunately for me, i saw the smoke from the fusible link and it was easy fix.
I hate to admit it, but I too was foolish enough to hook my battery up wrong in my 68 the first time. everything went dead. fortunately for me, i saw the smoke from the fusible link and it was easy fix.
