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Compression results.

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Old 12-03-2008, 10:38 PM
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Compression results.
I have an 04 mt 57k miles, took it in for rough idle, and I had a compression test done. Mazda says it's fine. But I have seen too many stories of what mazda says is "fine". I think the numbers are low. But so are my rpm.(time for an updated starter soon)

R1 199 rpm

6.5
6.8
6.8

R2 201 rpm

6.7
7.1
7.1
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Old 12-03-2008, 10:44 PM
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This cold or hot?

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Old 12-03-2008, 10:52 PM
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I am pretty positive cold
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Old 12-03-2008, 11:16 PM
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should the numbers be higher when cold or hot?
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Old 12-03-2008, 11:32 PM
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Absolutely higher when hot.

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Old 12-03-2008, 11:38 PM
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thats what I thought, but wasn't 100%. I am pretty sure they said they "had to" let it sit for a few hours before running the test.
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Old 12-04-2008, 07:44 AM
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ROFL ? sit a few hours b4 running the test ?


they suppose to test this at hot/warm. Not when its dead cold.
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Old 12-04-2008, 12:32 PM
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they do def look alittle low as do ur rpm's
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Old 12-04-2008, 01:02 PM
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Originally Posted by nycgps
ROFL ? sit a few hours b4 running the test ?


they suppose to test this at hot/warm. Not when its dead cold.

what he said. Mazda did mine cold and warm for the same price where did you get it done
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Old 12-04-2008, 02:32 PM
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Milam mazda in puyallup. It was no cost to me.
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