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John_AZ John_AZ is offline
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Join Date: Jul 2001
Location: ~Carefree Highway~
Posts: 5,833
Quote:
Originally Posted by shogunther View Post
I am having a spark problem with my car. It has intermittent spark. I took off the cap and the terminals are black(looks like carbon or burned). Can this be causing the intermittent spark? Can I just sand off the carbon and reinstall the cap? What causes this discoloration? Thanks for looking!
Do not sand the terminals inside the cap. The gap is critical. I use a Dremmel with a soft wire brush to clean the terminals. Wipe the cap to remove carbon archs inside

It is a Bosch cap, right?

Causes.
What type of plugs are you using? I suggest only the cheapest single tip copper plug that Porsche used for your 1985.5 944.
Wires--how old are the wires?
Rotor-did you change it when you changed the cap. Pelican sells an aftermarket I use for about $7.50.

GL
John_AZ
Old 08-04-2009, 04:59 AM
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