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Re: First do no harm (new oil leak at rear)

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Jeremy in DE

03-11-2013 06:42:37

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Thanks for all your time. The pictures help a lot. When reading the archives I missed those great pictures. I guess I was searching for the wrong words.

Plastigauge results: connecting rod bearings all between .0015 and.0025 and other main bearings a hair under .003. But note I did not plastigauge the rear main since I didn't take the cap off.

Should that cap come off easily after removing the cap screws to the rear oil seal and then the bearing cap screws? When it didn't come off easily I figured I'd skip it to avoid damaging anything. But apparently I'd already messed up the seal and now it needs to come off. What's the appropriate method?

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Duner Wi

03-11-2013 10:09:57

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 Re: First do no harm (new oil leak at rear) in reply to Jeremy in DE, 03-11-2013 06:42:37  
Rear main cap does not come off real easy because of friction from the packed in string on the sides of the cap. I assume you have the 2 small bolts removed form the main cap that holds the rear main oil seal. I wiggle the cap loose by squeezing the two main caps bolts together.
I have seen the rear main worn and front 2 mains ok. I assume this is due to out of balance clutch flywheel assembly. .003 is a little more clearance than I would prefer. .001 ,.002 is what I strive for. It has been a long time since I did my TO20 and hope I have not forgot anything.

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