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Solution enclosed 700 1989

posted by  gt6 on  Sat Sep 5 09:18 CST 2009
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last visit: Wed Jul 17 19:44 CST 2013
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Can somebody please tatoo "Check the basics first!" to the inside of my eyelids? I really need that...

Since the primary ignition seemed fine, the injectors were working, the knock sensor checked out, etc... I wondered if the problem might be a little closer to the actual combustion event. For expediency, I had left the spark plugs in the head when I R&R'ed the head gasket. What if I had banged an electrode during the head reinstall?

I hypothesised that plug 4 was darn close to one of the raised structures on the block than aligns the head. Pulled it and yes, it was bent to a gap of about 0.002". Re-gapped and re-installed, car is good as new!





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New '89 745T part-throttle stumble [700][1989]
posted by  gt6  on Sat Sep 5 06:19 CST 2009 >


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