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Registered
Join Date: Nov 2004
Location: Munich, Germany
Posts: 62
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hair cracks in 993 heads
In cleaning and bead blasting the heads of my 993 engine I found in every head a very small crack beginning in the threads of only one spark-plug to the exhaust valve seat.
Has anybody here, especially the profi head rebuilder seen this before?
Can I reuse these heads with new valve guides and ignore the cracks or will finally the seat-rings fall out?
Sebastian
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it`s not the speed that kills, it`s the sudden stop!
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