[kwikt]

Ok... finally got around to doing a compression check on my 92 111,000 mile 968. Bought the car last August. #1cyl 185psi #2cyl 185psi #3 180psi and #4 205psi. Why is 4 so high or are the other cylinders to low. Maybe carbon buildup. Tested them with 2 different gauges with same results. Opinions please!



Kevin

72 911T/E

92 968 6-speed

96 Yamaha PW50 for sale

01 Harley S&S Fatboy

03 BMW 330i

07 Ford F-150

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[968workaholic]

Did you disable the fuel system as well as the ignition when you were doing the test? If not, you could have loaded up cylinder #4 with fuel, and increased the number. I don't think one cylinder would build up that much more carbon than the others.

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[bob blackwell]

A leakdown test may be in order to give you a better idea of why the difference in the compression readings. Good luck, Bob Blackwell.

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[flash]

likely there is some sort of fluid in #4



could be fuel (as indicated above), or coolant, but more likely oil



what did the plug look like and smell like compared to the others?

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[kwikt]

Pulled the DME and fuel pump fuse. Should I have pulled something else?All the plugs looked great with a tannish white color. Actually all the plugs looked identical. Maybe by the time I tested #4 some how it got flooded with gas. Btw the car does'nt burn any oil! Thanks!



Kevin

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