The Ford Barn

Lincoln29 · 09-20-2020, 08:07 AM

I am rebuilding a 1936 LB motor and the rear main cap is the correct one but the slinger that the book shows doesn't fit in the cap. The slinger in the block works fine, not sure what to do about the cap. I have attached a couple of pictures. Please advise. Thanks, Jerry

JSeery · 09-20-2020, 09:42 AM

VanPelt sells them, I would think he could help you out.

http://www.vanpeltsales.com/FH_web/e...prices-pg2.htm

Brian · 09-20-2020, 01:56 PM

That cap is fitted as it is. The die cast insert 'that the book shows' was introduced sometime through the 1937 year.

Ronnieroadster · 09-20-2020, 03:45 PM

Your rear main bearing cap is not made for any of the insert type seal mounts. Your original crankshaft has two flanges at the rear one if for the beading thrust surface and the second is a slinger was designed to hopefully keep oil in the pan. In effect there's no separate rear rope seals in the early engines with the second flange.
Ronnieroadster

Lincoln29 · 09-20-2020, 08:07 PM

Thanks guys, you have been a lot of knowledge.
Jerry

Zeke3 · 09-21-2020, 09:17 AM

Sponsored Links (Register now to hide all advertisements)

Jerry, thanks for posting this question, my 37 21 stud engine has the same rear main cap as yours. I also purchased the insert for it, but haven't even unwrapped it. Guess I can add it to the swap meet pile since I don't need it.

09-20-2020, 09:42 AM	#2
JSeery Member Emeritus Join Date: Nov 2012 Location: Wichita KS Posts: 16,132	Re: Rear Main seal VanPelt sells them, I would think he could help you out. http://www.vanpeltsales.com/FH_web/e...prices-pg2.htm

09-20-2020, 01:56 PM	#3
Brian Senior Member Join Date: May 2010 Location: Masterton, New Zealand Posts: 3,825	Re: Rear Main seal That cap is fitted as it is. The die cast insert 'that the book shows' was introduced sometime through the 1937 year. __________________ Unfortunately, two half wits don't make a whole wit!

09-20-2020, 03:45 PM	#4
Ronnieroadster Senior Member Join Date: Dec 2010 Location: East Coast in CT Posts: 1,523	Re: Rear Main seal Your rear main bearing cap is not made for any of the insert type seal mounts. Your original crankshaft has two flanges at the rear one if for the beading thrust surface and the second is a slinger was designed to hopefully keep oil in the pan. In effect there's no separate rear rope seals in the early engines with the second flange. Ronnieroadster __________________ I use the F word a lot no not that word these words Flathead , Focus and Finish. "Life Member of the Bonneville 200 MPH Club using a Ford Flathead block" Owner , Builder, Driver of the First Ford Flathead bodied roadster to run 200 MPH Record July 13, 2018 LTA timing association 200.921 in one and a half miles burning gasoline. First ever gas burning Ford flathead powered roadster to run 200 MPH at Bonneville Salt Flats setting the record August 7th 2021 at 205.744 MPH

09-20-2020, 08:07 PM	#5
Lincoln29 Senior Member Join Date: Aug 2010 Location: Plymouth, Indiana Posts: 111	Re: Rear Main seal Thanks guys, you have been a lot of knowledge. Jerry

09-21-2020, 09:17 AM	#6
Zeke3 Senior Member Join Date: Dec 2014 Location: Columbus, IN Posts: 1,405	Re: Rear Main seal Sponsored Links (Register now to hide all advertisements) Jerry, thanks for posting this question, my 37 21 stud engine has the same rear main cap as yours. I also purchased the insert for it, but haven't even unwrapped it. Guess I can add it to the swap meet pile since I don't need it.

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