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patkeefe patkeefe is offline
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Join Date: Apr 2004
Location: Ringwood, NJ
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When #1 fires, it as at the nominal top of the stroke, between Compression and Power. Ay this instant, #4 should be at the top between Exhaust and Intake, Unless you have zero overlap in the cams, or your valve lash is set incorrectly, you shouldn't have the valve lash you describe.

Try taking the valve covers off, and watching the valve motions on #1 and #4 for a few rotations of the crank, to see what's what. Just follow along with the I-C-P-E routine a bit, and it will become apparent if you timed the cams wrong.

Pat
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Patrick E. Keefe
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92 968 Cab
01 Boxster
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Old 11-25-2007, 11:37 AM
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