1985 Jeep CJ-7 blows out oil

1985 JEEP CJ7
98,000 MILES • 6 CYL • 4WD • MANUAL
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1985 Jeep CJ-7 mileage: 98,000. The engine runs fine except it blows out oil at highway speeds (60-70 mph). The engine does not smoke and cylinder compression checks 110-130, spark plugs show normal color.
Oct 12, 2010 at 9:54 PM
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Check engine breathers and PCV valve for proper operation.
Oct 12, 2010 at 9:56 PM