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Ambitious Outsider
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Piston to Valve Clearances?
Hi Guy's,
A question came to mind while reading Wayne's rebuild book, how common is it to have piston to valve clearance issues when using new JE pistons with existing cylinders, granted if the cylinders are still usable? I want to use the 3.0SC configuration Wayne had listed in his book. Any thoughts on what to look out for using this set up? Thanks in advance...
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1988 3.2 Cab 2005 997.1 C2S |
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03-04-2008, 02:22 AM
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Registered
Join Date: Oct 2001
Location: Momence, IL 60954
Posts: 1,911
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It all depends who orders the pistons and what valve pocket size and depth they were set up with. I've never used one of JE's "catalog" off the shelf pistons for the 911, so I can't comment on what their default is. If your pistons have a job number etched into the wrist pin boss area, you can call JE up and find out what the pocket depth is - then you can check with Camgrinder if he's doing your cams as to what amount of pocket you need to have the .060-.080" piston to valve clearance desired.
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Charles Navarro President, LN Engineering and Bilt Racing Service http://www.LNengineering.com Home of Nickies, IMS Retrofit, and IMS Solution |
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03-04-2008, 06:18 AM
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Ambitious Outsider
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Thanks Charles, this is the kind of information I'm looking for...
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1988 3.2 Cab 2005 997.1 C2S |
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03-04-2008, 06:25 AM
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Ambitious Outsider
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Hey Charles, I just checked out your web sight! I think you just solved my Piston & Cylinder problem..
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1988 3.2 Cab 2005 997.1 C2S |
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03-04-2008, 06:33 AM
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Porsche 911SC 3.0 Targa
