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04-08-2023, 11:28 AM
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#1 |
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Member
Join Date: Feb 2022
Posts: 54
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36 ford flathead rear main seal?
My mechanic is asking what is used for the rear main seal . It doesnt look like there is a place for one. Not even a rope seal.
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04-08-2023, 11:41 AM
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#2 |
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Senior Member
Join Date: May 2015
Posts: 8,181
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Re: 36 ford flathead rear main seal?
No rear main seal in an original '36 flathead engine. They use what is called a "slinger"...
Ford Part # 40-6310... 
__________________
The only thing nice about being imperfect is the joy it brings to others.... "Silver rings, your butt! Them's washers!" "We shot our way out of that town for a dollar's worth of steel holes!" - from 'The Wild Bunch' - 1969 https://www.youtube.com/watch?v=7NReUd2_0u0 Last edited by petehoovie; 04-08-2023 at 11:50 AM. |
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04-08-2023, 01:01 PM
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#3 |
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Senior Member
Join Date: May 2010
Location: So Cal
Posts: 8,757
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Re: 36 ford flathead rear main seal?
The upper part in the block is 18-6335. https://reds-vintage-parts.com/store...t-18-6335-used
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04-08-2023, 02:21 PM
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#4 |
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Senior Member
Join Date: May 2010
Location: Masterton, New Zealand
Posts: 3,836
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Re: 36 ford flathead rear main seal?
Petes photo is of the front slinger, goes at front of crankshaft between timing gear and front pulley...
The 18-6335 was superseded with 78-6335 which will work better with your 'double slinger crankshaft.
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Unfortunately, two half wits don't make a whole wit! |
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04-08-2023, 02:21 PM
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#5 | |
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Senior Member
Join Date: May 2015
Posts: 8,181
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Re: 36 ford flathead rear main seal?
Quote:
__________________
The only thing nice about being imperfect is the joy it brings to others.... "Silver rings, your butt! Them's washers!" "We shot our way out of that town for a dollar's worth of steel holes!" - from 'The Wild Bunch' - 1969 https://www.youtube.com/watch?v=7NReUd2_0u0 |
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04-08-2023, 05:07 PM
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#6 |
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Senior Member
Join Date: May 2010
Location: Masterton, New Zealand
Posts: 3,836
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Re: 36 ford flathead rear main seal?
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Yes...superseded with 78-6335 as I posted above. Actually, either the 18 prefix or the 78 prefix can be used, but the 78 prefix gives better control.
__________________
Unfortunately, two half wits don't make a whole wit! |
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04-09-2023, 09:37 AM
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#7 |
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Senior Member
Join Date: May 2010
Location: Green Bay
Posts: 391
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Re: 36 ford flathead rear main seal?
Here is what I did on my 35LB rear seal.
Check link out from 2010 https://www.fordbarn.com/forum/showthread.php?t=21404 |
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