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Improving Compression with age. 200

uid 18886's pic
posted by  sdewolfe on  Fri Feb 6 15:21 CST 2009
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last visit: Mon Jan 31 05:56 CST 2011
[RELATED]

Your numbers are high whether cold or warm.

Does the car run OK? Power is acceptable? No pinging or rattling? How is the oil consumption? Fuel mileage? Basically, if the car is running fine, don't worry about the compression.

To get a baseline for future checks, follow a standard procedure:

Warm engine.
Disconnect the minus side of the coil.
Throttle plate open.
One plug at a time.
Cranking speed compression should be 128-156psi.

High compression readings are usually caused by carbon buildup. If the car is pinging, plan on doing a top end refresh to remove carbon from the piston tops.
--
Mr. Shannon DeWolfe -- I've taken to using mister because my name misleads folks on the WWW. I am a 53 year old fat man. ;-)






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