Rear Oil Seal

[Jim N.W.Mi]

Hi All, Just got the block back from the machine shop and started to reassemble. Plastigaged the crank it checked out good. Put the rear seal retainer in after permatexting it, soaked rear seal in oil for approx. 45 mins..When installing the seal in the retainer it seems to go in too easy. It fits but did not have to use a socket to roll it in. Got seals with the gasket kit. In checking archives it sounds like they really have to work it in. Is it normal that these slip in this easy? Any help would be appreciated. Thanks for all your help so far (thru the archives). Jim

 

[Dan]

I just put mine in two days ago on my 1939 9N I am rebuilding - and discovered the same thing regarding how easy they went in - I didn't need a socket this time either. When I did my 1948 8N some time back, it took awhile to roll it in. I strike it up to aftermarket suppliers saving a buck, or not providing acurate tolerance parts - either way, it means it won't work as well for us likely.

One other issue - the rope seal appears to be taller. I had to pull my crank out again last night after everything was in place because I had a senior moment and forgot to clean the oil galley holes out on the crank before I put it back in - and noticed my rear main bearing shell was rubbed pretty bad on the back half of the shell. I concluded the rope seal was a tad too high and putting pressure on the crank once it is bolted down and pushing it upwards causing the extra pressure on the rear half of the bearing shell.

I sure wish I could find some NOS rebuild kits, or at least the gaskets.

Dan

 

[Hobo,NC]

Last engine i rebuilt has a nice'er fit'in rear seal,,, more of a Taylor fit then the other ones I have seen,,, the new'in was more like the original 2 me,,, for the ell of it I did not soak it in oil,,, I did oil it after install were it runs on the shaft,,, No leaks,,, mite b the first one that does not have a tinny leak,,, rope seals are spose to expand when they come into contact with oil,,, I spec the new'ins will not bust out the ears on the oil pan like the old ones did,,, looks like a up grade 2 me,,, it took 40 lbs of torque to turn it over,,, oil pan on,,, head off,,, that means it turned EZ,,, fer those that don't turn wranches regular that means,,, with a 3/8 ratchet you had to git on it,,, with a 1/2" ratchet not bad,,, with a 1/2 breaker bar a nice EZ pull,,, you can check the rear seal retainer for leakage B-4 you install the pan,,, I have posted it B 4 lets see iffin enny one remembers,,, are do y'all do the wham bam thank ya mam install
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