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What causes pits in the cylinder head?

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07-19-2010, 12:02 PM

Benzcrusher Benzcrusher is offline

Benzcrusher is offline

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Join Date: Jan 2004

Location: Upstate SC

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What causes pits in the cylinder head?

Here's the head I just took off my 617.912 I've driven this car daily at times up to 200 miles in a day. Since this past winter it got harder and harder to start, lately it would crank for about 30 seconds while hot to start; ran fine otherwise. Note the heavy pitting. Injectors good, piston crowns are fine, just the head is pitted beyond reopair plus a crack or two...

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