Compression Test Numbers
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Originally Posted by iam7head,Jul 27 2009, 12:38 AM
ar...not really
the number change depends on the method you used to do the test, the temperture of the engine, the brand and condition of the gauge.
compression test is only meant to be used as a first step in testing the overall "health" of the motor. on a used car 8-10 percent variation is "accepted" on a new and rebuilt motor is around 5 percent.
i did a compression test on a recently broken in ap2 and it's 210-215 across the board, ZOMG it's a lemon because it's not 250
the number change depends on the method you used to do the test, the temperture of the engine, the brand and condition of the gauge.
compression test is only meant to be used as a first step in testing the overall "health" of the motor. on a used car 8-10 percent variation is "accepted" on a new and rebuilt motor is around 5 percent.
i did a compression test on a recently broken in ap2 and it's 210-215 across the board, ZOMG it's a lemon because it's not 250
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