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Old 04-19-2016, 04:48 PM   #11
1998 Boxster Owner
 
Join Date: Feb 2016
Location: Tucson
Posts: 141
Garage
Compression test results

It's amazing to me how many chores we have to do to gain access to our Boxsters. Anyway, here are the numbers for the compression test:
Cyl 1 - 133 psi
Cyl 2 - 140
Cyl 3 - 133
Cyl 4 - 121
Cyl 5 - 126
Cyl 6 - 122
WOT, performed at room temp

Now I can see the second bank is lower, but it should not just flood. The car has 96000 miles, had 7 owners, and they probably drove the piss out of it. I'm still suspect of the Bosch Platinum +4 spark plugs. They've been in since troubleshooting began and have been flooded several times. I have a new set of Bosch 7402s that look like OEM. I'm tempted to try them.

Last edited by tada; 04-19-2016 at 04:58 PM.
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