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Uhhh Ohh
Posted by dref (more from dref) on Fri, 11 Nov 2011 15:50:56
In Reply to: Compression test results.. as suspected :-/, SMP, Fri, 11 Nov 2011 15:38:01
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15/20 psi variance betwixt cyl pressures is acceptable.
But IMO None of your readings are passable, despite the elevation.
Try Again? with all plugs out and throttle held wide open for the duration of the test, giving it at least 4 good comp cycles on each cyl.
Seems unlikely that 3 sets of ex valves burnt.. But?? Could even be rings? IF burnt valve(S)? then you need to find & fix WHY they burnt.
Weak mixture and/or air leak is the usual first suspect.
You will, sooner or later, need to pull the head to see /guess what visible damage there is and whether to spend large patching it, Or to find a wrecker motor replacement.
If it's the rings as well, then everything in that motor is suspect IMO.
Shame, but it's all part of real life too.
posted by 207.6.23...
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