That doesn't look that bad, does it?

[garyholl]

Zoom in some. It doesn't look that corroded.
It started missing when we were surfing. Then it was seeming to miss more at high speeds. I finally decided to try changing the fuel filter and distributor cap and rotor. When I pulled the cap I saw this:




I'll change them tomorrow and see if it helps.

Btw, is the rotor supposed to be that far away from the contacts inside the cap?:

[CJD]

Your top cap looks like a fairly average wear pattern. That fuz can be cleaned off with a Dremel with the small wire brush bit and the cap/rotor used as a perfectly good spare. I prefer the brass contacts, like it looks like you bought as a replacement. Naturally, close is better, but I don't know how much gap is acceptable...never really checked it before.

I'll be interested to hear if the fresh rotor/cap solve the miss.

[lively]

No the rotor should be closer . But some cap designs are different . gM style usually are closer than that looks as if it just worn


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[garyholl]

Where I show the rotor inside the cap, those are both the new replacement parts. It seems too far to me.

[Kma4444]

I'd say a mismatched pair there. They should be in the tenths of an inch not hundredths.

[garyholl]

Turns out it works just right. Just got off the water and the missing is OVER!
YAY!

[TitanTn]

So what did you do?

[garyholl]

Installed it. It's running great. The cap and rotor was only like $40!