1993 Holden Commodore

Tiny
BUSHY05
  • MEMBER
  • 1993 HOLDEN COMMODORE
1993 Holden Commodore

compression cylinder test differs frfom cylinder to cylinder what could be the problem
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Saturday, October 3rd, 2009 AT 5:35 AM

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Tiny
MHPAUTOS
  • EXPERT
Hi there,

You will need to do a wet test. This is where a small amount of oil is added to the cylinder just a few squirts from an oil can, this will seal the rings and then do a comp test again, if the comps come up the rings are a problem if not the valves are the problem, do this one cyl at a time, and the rule of thumb is no less the 10% variance from high comp to low comp.

Mark (mhpautos)
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Wednesday, October 7th, 2009 AT 5:03 PM

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