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Do I need a new or rebuilt engine?? 700 1989

posted by  raidman on  Thu Jan 19 19:48 CST 2012
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last visit: Fri Apr 4 22:17 CST 2014
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This is the 'wifemobile' and has had transmission issues lately (gonna try to resolve by flushing and adding synthetic oil). I checked the compression with a tester from AutoZone. The numbers were ( after 40 cranks each time): 1) 150psi
2)155 psi 3)150psi 4)150psi.
This engine is OEM and has at least 225,000 miles on it. No smoking.
Are these normal PSI's for this age engine? Should I think about replacing it with a lower mileage one or even re-ringing the pistons?
Thanks,
el raidman

PS. My 86 745 has 150,145,150,155.






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