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how to tell if u have low compression?

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Old 07-09-05, 11:31 PM
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I "lost" my emissions....

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how to tell if u have low compression?
there really arent any places around here to get a compression check done w/o paying an arm and a leg for it, so im wondering is there anyway to do it yourself?
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Old 07-09-05, 11:36 PM
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Buy a compression tester, maybe...just maybe....
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Old 07-10-05, 03:01 AM
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I think he means so he can check the compression for each rotor face. Although, w/o the Mazda system, I don't know if you're going to have much luck.
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Old 07-10-05, 05:07 PM
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Hold the shrader(sp?) valve down and you can see the individual bounces.
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Old 07-10-05, 06:25 PM
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Compression testers are about $15 at any parts store. Just hold the valve down and watch for 3 even bounces. Doing a compression test is really easy. Its worth doing yourself.
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Old 07-10-05, 06:27 PM
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Yeah it's quite simple... use the SEARCH FUNCTION.


You can remove the shrader valve from the compression tester for a piston motor.

-Justin
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Old 07-10-05, 08:47 PM
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Haha, I never thought about just holding the valve open! Learn something everyday..
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