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tito911s tito911s is offline
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Join Date: Jul 2006
Location: SF Bay Area
Posts: 211
To grind or not to grind?

Forgive the title, but I couldn't resist.

Rebuilding 3.2L 1984 engine and got it down to the bottom end. Reason for rebuild?
Had a significant cylinder to case leak (probably from nasty RTV, etc.), and even worse, significant blow by on cylinder 6. Tore things down to short block, and then decided to go down the case.

Sent out camshafts to Webcams and turns out they reground the my very SAME camshafts in 2000! I could tell that someone had been into the engine once, but this gives a little more history/timeline for the engine. Good.

However, the cams were reground to 964 profile and, when I sent them, had a little pitting on two lobes.

Now, I'm faced with decision. To regrind the camshafts before rebuilding the engine or to leave a little pitting on two lobes. It's a $575 decision, so thought I would consult my favorite group of Porsche experts before proceeding. Interestingly to regrind to stock is about $1000. But based on everything I read, there is no reason to do that and the 964 grind provides a little kick, anyway.

Thanks all in advance.
Old 07-13-2017, 10:51 AM
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