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911st 911st is offline
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Join Date: Jan 2004
Location: Sacramento
Posts: 7,269
Quote:
Originally Posted by Flieger View Post
Here is a photo of the 935 exhaust valve oiling modification machining to the cylinder head to get more oil to the guide.

I have seen this before.

So what exactly is happening here. Is oil being pulled off the cam tower and dripped over the exhaust valve stem area to pull heat off it?

If so, there much be a hole of a specific size drilled in the cam tower to maybe a cam bearing journal or supply. Any one know?
Old 12-29-2009, 03:05 PM
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