Adding signals to my 75 FXE and pulled the seat to trace wires to the rear (original signals were removed along with wires)
Noticed that the coil wire insulation was melted per the attached picture.
Made a small cut and opened the harness up a bit, the wire insulation is fine inside the harness.
Couldn't find any spots on the frame or elsewhere that would indicate contact with the wire and rub-through of insulation to cause a short.
But based on local nature of the issue my guess is that's what happened. Otherwise, the wire insulation would have been fried inside the harness as well, right?
When you have a poor connection (like the one at the coil, it's green) it will create to much resistance and because of that, the wire will heat up and melt the insulation as it did.. I would replace the entire wire or at least back far enough to where you can see good copper...
When you have a poor connection (like the one at the coil, it's green) it will create to much resistance and because of that, the wire will heat up and melt the insulation as it did.. I would replace the entire wire or at least back far enough to where you can see good copper...
yeh I agree and maybe a 14 gage instead of an 18 gage just my opinion
Not a big fan of using a heavier wire to try and 'eliminate' cooking a wire. There is usually a reason the wire melts. Best to figure it out now, at home, rather than on the road and miles away from home.
like Bob had said the connection may have been corroded and that will cause the heat at the spot its corroded
replacing the entire wire as an extra to the harness is what we would do in the shop at the same gauge
having that much heat at the coil connection I would have replaced the coil, or at least run a OHMs test on it as the resister in the coil is not a fan of being over heated - if its points the condenser is also not happy - it will not work for long would be my guess
Not a big fan of using a heavier wire to try and 'eliminate' cooking a wire. There is usually a reason the wire melts. Best to figure it out now, at home, rather than on the road and miles away from home.
Originally Posted by johnjzjz
couple of things to think about
like Bob had said the connection may have been corroded and that will cause the heat at the spot its corroded
replacing the entire wire as an extra to the harness is what we would do in the shop at the same gauge
having that much heat at the coil connection I would have replaced the coil, or at least run a OHMs test on it as the resister in the coil is not a fan of being over heated - if its points the condenser is also not happy - it will not work for long would be my guess
Have to agree.... That much heat is abnormal and one should look into the cause more carefully... Most times that would indicate a heavey draw at the coil... It's the only load on that circuit. So yes an residencer test would be appropriate at this point... Sorry guys... It's just that sometimes I think most think like me and I don't need to explain everything... I'm trying to get better and thank you... I'm seeing it a little differently..,..
..
I had that problem and even had to pay a tow truck 75 dollars
so nothing shorten out but that wire from the coil to the ignition
get an overload sometimes from the circuit breaker, I changed
the circuit breaker and went with the 14 gauge wire and I'm still
running it never had another problem that worked for me but
each to his own
Last I saw that ... it was a case of a points system, and walking away with the ignition on... Not only cooked the wires it blew the coil ...literally
I don't think it had any affect on the condenser, as it is just a capacitor.. You will know in a Moment if the condenser was bad... there is Never a Question.. rewire...same gauge... Bigger is Not better... except in Big City America
01-19-2019, 11:11 AM
Coil Wire Got Very Hot - 75 FXE
