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Re: NAA rear seal again-long

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04-05-2014 14:30:06

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This thing is slinging oil in just fifteen minutes of running. If I can get it down to a drip I'll call it good enough. I've read Hobo's posts in the archives and he's the true go-to man for this problem. In one of his posts he had mentioned using compressed air and bubble soap to test the seal while it is still on the stand, but I don't know how he did it. I have several ideas on how to test it while on the stand but I don't know if they will work. I'll just have to wait and see. Jim

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04-05-2014 16:21:08

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 Re: NAA rear seal again-long in reply to fixerupper, 04-05-2014 14:30:06  
Does the crank have what looks like light knurling where the seal goes? If that is the case it works with a rope seal but not to good with neoprene style.

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04-05-2014 19:36:17

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 Re: NAA rear seal again-long in reply to sunbeam, 04-05-2014 16:21:08  
The knurling of the crank shaft came with the first neoprene two peace seal, from Ford. I would suspect a knurled shaft and a rope seal would not be the best combination

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04-06-2014 11:01:33

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 Re: NAA rear seal again-long in reply to WayneIA, 04-05-2014 19:36:17  
That must be the opsite for car engines. It is not a cross hatch knurl only in one direction. It is slanted so that it pushes the oil back to the pan. It works fine for rope but wears the lip on neoprene seals.

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