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Carbon build-up 700 1986

posted by  jmars on  Fri Mar 18 02:52 CST 2005
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last visit: Wed Jan 2 02:18 CST 2008
[RELATED]

I have noticed large carbon build ups on plugs from bad turbo hoses. I don't mean to insinuate that your hoses are bad, only that a large carbon build up occurs very suddenly from a rich running situation. If you are getting this on only one cylinder and not all as occurs in a bad hose situation, I would suggest inspecting the ignition system on the one cylinder that is effected. It must be that you are not getting adequate spark in that cylinder and hence it is running rich. This could come from a problem in the ignition system or perhaps a faulty (or fouled) plug.






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