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CharlesJones CharlesJones is offline
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Join Date: Apr 2005
Location: Co. Carlow, Ireland
Posts: 455
Ahh.. I understand now! If the valve guide is worn the valve might not sit straight and so the valve face won't be flush to the seat. But then why is it so critical to keep the valves matched to their cylinder heads? Maybe its not so critical if everything has been refaced?
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Charles

'84 911 3.2
Old 05-19-2005, 03:27 AM
  Pelican Parts Technical Article Directory    Reply With Quote #19 (permalink)