Post#19 » Wed Jul 04, 2018 2:06 pm
Sounds like you're talking about a rear main seal replacement. If so, it's painful. I've heard of people managing to remove the oil sump, lower the oil pan skirt and remove all of the main-bearing caps so the rear end of the crankshaft could be lowered enough to replace the rope seal. I've also heard that even when all of this work is finished, the seal still leaks. Apparently a design flaw, but some 617s don't leak. Not sure what to say other than "good luck!"
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