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Old 08-12-2008, 10:00 PM
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Ryan Ryan is offline
MC Maniac
Join Date: Jul 2004
Boat: 2007 X1
Location: Cincy
Posts: 3,121
So much for getting that done last weekend.

Compression comes in between 135 -140 psi with most right smack in the middle at about 138. I need to verify my methodology, I had all spark plugs out and for each test cranked 5 revolutions. I also checked it with 7 revolutions and all come in just a hair over 150 psi. Let me know if I am off base and should be taking the first or second reading.

New Bosch spark plug wires have made no difference.
My 2007 X1 is for sale.
Click here.

Last edited by Ryan; 08-12-2008 at 10:04 PM.
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