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Old 09-10-2018, 02:27 AM   #1
RUNNERBUN
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Default Surprise find

I just picked up an early 1928 engine (engine number 15,???) and couldn't wait to tear it apart to see what I got. The engine has the early Beaver tail crank, the connecting rods are the ones that have the cross section shaft. Rear main has the smaller drain tube. The whole thing is in very good condition and I will be just cleaning it up and put it back together as a spare engine.
One thing that surprised me is the rear main bearing cap. As you can see from the pictures a felt seal has been added to the rear groove where the crank slinger goes. I have never seen this done and was wondering if anyone has had experience with this small modification.
Did it or does it work to reduce rear bearing leaks?. Is it worth doing?
Your thoughts and comments are welcome.

Runner
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Old 09-10-2018, 07:15 AM   #2
Tom Wesenberg
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Default Re: Surprise find

I'd loose the felt. It doesn't belong there, and if part of it came off and plugged the drain tube, then you'd have a real leaker.
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Old 09-10-2018, 07:54 AM   #3
jhowes
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Default Re: Surprise find

I had a Willys Knight engine where someone put a felt piece in the rear main like in your picture. The slinger caught some of it and through it all over the place. It leaked like a sieve. Take it out and live with the slinger, it works as it is suppose to. Jack
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Old 09-10-2018, 05:28 PM   #4
Bill Pursel
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Default Re: Surprise find

I have got an early engine that has x rods,5 journal cam and block and has a felt in the rear main like yours !
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Old 09-10-2018, 06:14 PM   #5
RUNNERBUN
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Default Re: Surprise find

Thanks for your input Tom and jack. I think i,ll be leaving it out. Bill, that is very interesting, having two early engines with the same feature. Will be interesting to see if any others turn up.?
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Old 09-11-2018, 11:08 AM   #6
Jim Brierley
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Default Re: Surprise find

That felt may have an aftermarket device designed to stop leakage? I've seen both felt and cork used like that.
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