Thread: One Or All 4?
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Old 06-17-2021, 08:09 AM   #3
Bob Bidonde
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Location: Long Island, NY
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Default Re: One Or All 4?

Do not conclude the engine needs rebuilding / overhaul until you have evidence that supports it. Valve guides are a source of oil, and it may be that the rings in Cyl 1 have not seated yet. I suggest that you perform a cylinder leak test.

(1)Remove the valve cover;
(2)Rotate the crankshaft so both valves of Cyl 1 are closed;
(3)Put the transmission in gear and chock the wheels;
(4)Pump 75 psig air into Cyl 1, turn the air supply OFF and observe the gauge. A small amount of leak-down past the rings is normal. Check in the valve chamber for air leakage from the valves and guides.
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