09-05-2009, 07:34 AM #1
- Join Date
- Sep 2009
Compression on 580 Yellow motor ?
I just picked up a '89 with the 580 motor ( yellow ) for almost nothing. What should the compression be on one of these? I'm getting 120 psi on both cylinders.
09-05-2009, 10:47 AM #2
like to see 130-140 BUT take in account for error on gauges your "EVEN" 120 is good.
is it running?
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