
10-15-2007, 07:58 PM
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CC Member
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Join Date: Sep 2006
Location: Airmont ,
NY
Cobra Make, Engine: Autocraft MKIV
Posts: 61
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Not Ranked
My 2 cents is ... the piston to valve clearance was OK, its either a efective valve OR the valve was too tight in the guide AND OR your running too hot of a spark plug and that caused the valve to become too hot and too tight in the guide ....causing the valve to hit the guide. Been there done that.
Ron
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