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Registered User
Join Date: Jan 2011
Location: Edmonton, AB
Posts: 33
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Assess my PPI compression #s
Hey all,
Getting close to pulling the trigger on an '86 Targa, currently has 130k miles but top end was rebuilt at 100k miles. Had a PPI performed and the following was noted: Compression Results: 147, 149, 151, 151, 155, 152 (test performed at 3740 feet above sea level) -Both upper valve covers sweating (valves haven't been adjusted for 9k miles) -Brake pads: 5MM front and 4MM rear All I know about compression results is the lowest number should be less than 15% lower than the highest number. Happy to get any feedback. Thanks, Tawheed |
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08-19-2011, 04:22 PM
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Registered
Join Date: Oct 2008
Location: Nash County, NC.
Posts: 8,516
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Compression numbers look like numbers you can live with. All in the same group. If the oil pressure is good, should be solid.
Bruce |
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08-19-2011, 04:35 PM
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Registered
Join Date: Jul 2000
Location: So. Calif.
Posts: 19,910
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Does the tech performing the compression test remain neutral - as in no opinion?
Surely, he must have said something. BTW, those numbers sound fine to me. Cranking speed will have an effect on pure numbers, but it's important to have consistent figures. Sherwood |
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08-19-2011, 07:21 PM
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Registered User
Join Date: Jan 2011
Location: Edmonton, AB
Posts: 33
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He said they were good. Figured I'd throw it out to the boards just to garner additional feedback
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08-19-2011, 07:58 PM
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