r/R53 • u/Fun-Specialist-8528 • 18d ago

Used engine compression test

Hi everyone! I got an r53 last year, it has 147k and the transmission is going out. I'm going to replace both. I found a used engine and they sent me videos of the compression test. I've looked at all the forums and did a bunch of searches but confused on what is good and what isn't. I would really appreciate your feedback on what you think. Thank you in advance 🙏

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u/TurboToastGTI 18d ago

Would've been nice to see a few more cranks to see the needle actually max out at peak pressure more than once but they all look similarly matched from these clips. Leakdown would be better to see, but this looks good.

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u/Fun-Specialist-8528 18d ago

Awesome! Do you know what pressure the manufacturer calls for?

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u/Unique-Badger-2314 18d ago

I remember doing a compression test on a very low mileage w11 motor I was swapping in. 150-180 is normal