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I need a compression check on my engine. My cheap guage is giving me uneven readings.

Any other suggestions?
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[ 08-09-2003: Message edited by: David Kiehna ]</p>
 
have you checked it for leaks? that is one of the biggest problems we have with test equipment at work

[ 08-09-2003: Message edited by: Chuck Cougill ]</p>
 
buy another cheap one?
 
Most of the time a compression gauge goes bad be cause the srader(SP) valve in the end that screws into the spark plug hole is leaking. It the same type used in valve stems.
 
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