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Just to note I did change out the PCV that adjusts piston stroke to no avail. I am thinking it is the discharge or suction "check" valve if one exists or whatever it is that seals the vapor in to allow compression (that which is in all compressors). The PCV sends either high or low side to the piston/wobble plate crankcase side to vary piston stroke. I thought I later read that at worse the piston stroke would be reduced to 20% so I am thinking a sticking or failed PCV will not completely prevent compression only screw around with your pressures by mis-adjusting the piston stroke. My problem was consistent and never intermittent so I don't know if "sticking" would apply. I also early on shot oil in the system to unstick whatever might be sticking and no luck there either.
I may gut the comp and report any findings.
BTW thanks for the thread.
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08-26-2012, 07:55 PM
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