Compression values.
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From: SW, WA
Compression values.
Going to be doing a compression test on our 850 soon. Can anyone tell me what the normal numbers are cold and warm? I would like to do the test with the engine warm, but I might end up having to do it cold so knowing both numbers would be great.
Many thanks,
Glenn
Many thanks,
Glenn
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Joined: Mar 2009
Posts: 15,736
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From: Albuquerque, NM
Cold numbers are useless and mean nothing. Wet and dry matter.
Compression Test - Volvo S70 GLT, 1998
Compression Test - Volvo S70 GLT, 1998
Normal values B5204/5252/5254 1.3-1.5 MPa
Normal value B5234T 1.1-1.3 MPa
Note! Engine at operating temperature, wide open throttle (WOT) and starter motor turning at 4.2 - 5.0 r/s (250 - 300 rpm).
Normal value B5234T 1.1-1.3 MPa
Note! Engine at operating temperature, wide open throttle (WOT) and starter motor turning at 4.2 - 5.0 r/s (250 - 300 rpm).
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