Question on replacement Opti-spark from CRT Performance

[Terry M.]

Re: Question on replacement Opti-spark from CRT Performance

T
BTW Terry... how'd you go about finding out it was the wire?

A buddy of mine has a shop and does a lot of Corvettes, and F-body cars with the Gen II LT1. I think I am his only B/D-body customer. He ALWAYS preaches to check that wire first. I believe he has learned about that the hard way.

When I pulled mine off the coil the white corrosion told the tale right away. I had to replace both the coil and the wire.

The pros story is that the wire often just gives out and will measure a high resistance. Since he has a lot more experience with these things than I do, I listen to him. Besides which, as you noted, it is easiest to check. Use a light to check for corrosion inside the distributor connection to that coil wire. He tells me that some of them corrode at that end.

Someplace around here I have a picture of the corrosion, but now that I want it I can't find it.

[Clem Z.]

Re: Question on replacement Opti-spark from CRT Performance

A buddy of mine has a shop and does a lot of Corvettes, and F-body cars with the Gen II LT1. I think I am his only B/D-body customer. He ALWAYS preaches to check that wire first. I believe he has learned about that the hard way.

When I pulled mine off the coil the white corrosion told the tale right away. I had to replace both the coil and the wire.

The pros story is that the wire often just gives out and will measure a high resistance. Since he has a lot more experience with these things than I do, I listen to him. Besides which, as you noted, it is easiest to check. Use a light to check for corrosion inside the distributor connection to that coil wire. He tells me that some of them corrode at that end.

Someplace around here I have a picture of the corrosion, but now that I want it I can't find it.

this problem can be cause because the wire was no pushed into the coil or cap far enough. if the boot on the wires are not pushed back far enough this will stop the wire from going in all the way. always slide the boot back insert the wire and then push the boot back in place