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Search took 0.00 seconds. Search: Posts Made By: mmwjr

Forum: Engines

12-13-2014, 01:13 PM

Replies: 10

5.7 compression test- one cylinder at 150 psi, worry?

Views: 25,223

Posted By mmwjr

How many hours are on it? What shape is the...

How many hours are on it? What shape is the exhaust in? If the exhaust is allowing water to leak and it's get back to the engine burning water will damage the exhaust valves causing them to not seal...

Forum: Engines

07-31-2014, 04:31 PM

Replies: 10

5.7 compression test- one cylinder at 150 psi, worry?

Views: 25,223

Posted By mmwjr

Engine build tolerances can result in a 10%...

Engine build tolerances can result in a 10% variance right from the start. I would not be concerned. A gas engine typically last ~2000 hours so 360 is ~ 20% of the overlife.

Forum: Engines

07-30-2014, 02:54 AM

Replies: 10

5.7 compression test- one cylinder at 150 psi, worry?

Views: 25,223

Posted By mmwjr

Welcome aboard. 150 psi is considered a good...

Welcome aboard.

150 psi is considered a good compression. Low compression is lower than 130. The cylinder should be within 10%.

If anything is weak I would think a leak valve and not the rings...

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