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Just checking my old records when I suddenly had a misfire.

SVA did a compression test on my engine.image.jpeg

125 - 130 when my car was on 119k kms.

I think that's pretty good at the time but I hadn't noticed!

Z on 135k kms now!

I think this equates to 2,500 miles a year.

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125-135psi is a touch on the low side I’m afraid Art. 150psi would be more in keeping. That said it’s the difference between each cylinder that is informative and a blanket average is less useful, obviously you have no way to know about how well the test was executed either. If the car doesn’t smoke I wouldn’t worry too much.

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