Uh, NOPE

[TrailBeast]

The other day I got the 72 Dart ready for anytime driving duty since it has always been registered and insured but almost never driven.
I noticed a miss that wasn’t there before and tracked it down by inserting a test light between the wires and caps on the distributor.
Yep, cylinder number 5.
I pulled the wire from the distributor had a good spark at that terminal, so I put the wire back on and stuck my screwdriver in the end and layed it on the intake = Nothing.
I pulled the wire again and noticed a soft spot in the silicone casing.
Yep, there it is.
Runs great again.
Burned the core right out of it.

 

[Righty Tighty]

How does that happen?

 

[Inertia]

Yep, doesnt happen often.
Scope picks it right up, but not many have a scope.
Good job.

 

[67Dart273]

First time I saw something like that was about 1972. This was before silicone, and was then factory type resistor wires.

 

[RustyRatRod]

How does that happen?

Cheap or really old wires.

 

[TrailBeast]

How does that happen?

Cheap or really old wires.

Could be both actually.

I’m sure HEI had nothing to do with it.

 

[RustyRatRod]

Could be both actually.

I’m sure HEI had nothing to do with it.

Yeah HEI burns the crappola outta most anything it touches.

 

[Syleng1]

Yeah HEI burns the crappola outta most anything it touches.

How true is that- GM wires “love you long time.”

 

[Car Nut]

I like using Firecore 8mm wires.