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By Picachored - 3 Years Ago
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Well, hoping to draw on the knowledge out there... I have a 55 Country Sedan wagon w/ 272 and after finally getting it running it appears I have a rear main seal leak. The engine is rebuilt, however its been sitting for 20 years... long story. Just wondering if anyone knows if I can do this seal change with the engine sitting in the car. Saw somewhere that if #1 is on TDC the pan will come out, not much room at crossmember. Front sump pan. Would be obliged for any experiences out there....Thanks,
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By paul2748 - 3 Years Ago
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I would suggest running the car some more to see if the seal swells up and stops leaking (if it's not leaking real bad). Also try some stop leak - sometimes it helps. If both things fail, then change the seal.
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By Deyomatic - 3 Years Ago
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Not sure what weight oil you're running, but if the stop leak makes you nervous, maybe thicken it up a bit with some heavier oil.
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By Picachored - 3 Years Ago
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I am not using the rope seal, it's neoprene so I'm not sure if that swelling would happen... using Rotella T and Lucas break in additive. Darn thing has about 70 lbs pressure on cold start. THANKS for the tip sir
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By cos - 3 Years Ago
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Hello I once had a 272 (early 1955?) that I couldn't stop rear main seal from leaking. But this was back when rope seal were used (1960s). This engine crank did not have oil sling. Had to swap in a later crank, that slowed leak but didn't completely stop it, but was using rope style seal with expanding type side seals.
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By cos - 3 Years Ago
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Hello I once had a 272 (early 1955?) that I couldn't stop rear main seal from leaking. But this was back when rope seal were used (1960s). This engine crank did not have oil sling. Had to swap in a later crank, that slowed leak but didn't completely stop it, but was using rope style seal with expanding type side seals.
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