140 Diff. Bearing Retainer

Farmall Super A, AV, 100, 130, & 140 1939 - 1973

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cubbrian
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140 Diff. Bearing Retainer

Postby cubbrian » Tue Jan 01, 2013 7:21 pm

While putting new seals in the finals of a 140, I found that part of the flange was broken and only being held in place by one of the three bolts that hold the differential bearing retainer in place. I purchased a replacement, but it does not have a groove to install the o-ring on the retainer. My questions are: 1) will it hurt to leave the cracked retainer in place, and 2) can I use a retainer that does not have the groove for the o-ring?

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Re: 140 Diff. Bearing Retainer

Postby Boss Hog » Tue Jan 01, 2013 7:29 pm

Sounds like a judgment call. If you were to use the replacement retainer I would use some sealant or you may have an oil leak.
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Gary Dotson
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Re: 140 Diff. Bearing Retainer

Postby Gary Dotson » Wed Jan 02, 2013 7:33 am

I certainly wouldn't re-use the broken retainer, those things carry a lot of load. I think you'll be fine with a little sealant on the replacement.

cubbrian
5+ Years
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501 Club
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Posts: 802
Joined: Sun Apr 08, 2007 7:47 pm
Zip Code: 47631
Tractors Owned: 1955 Cub w/9 different 1 point implements
1948 Cub
1948 McCormick W-6
1949 H
1949 M
1961 560 w/ 412 fast hitch plow
1966 140
1973 666
Allis Chalmers C w/sickle mower
Case 400
Economy 14 hp tractor
Location: IN, New Harmony

Re: 140 Diff. Bearing Retainer

Postby cubbrian » Fri Jan 04, 2013 2:29 pm

Could a machine shop cut a groove for the o-ring in the retainer I have and if so, what would that cost?

Gary Dotson
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Tractors Owned: 48 Cub Diesel (Cubota)
53 Cockshutt 20 restored (Shooter)
52 Cockshutt 20 unrestored
47 Leader "B" (Herckie)
49 Leader "D" (Princess)
49 Leader "D" very rough
48 Leader "D" unrestored
Kubota B6200E
Kubota B6200HST
Kubota B8200HST-D
Circle of Safety: Y
Location: OH West Mansfield

Re: 140 Diff. Bearing Retainer

Postby Gary Dotson » Sat Jan 05, 2013 8:16 am

I'm sure a decent machine shop could cut the o-ring groove, I've got no idea what they would charge, you'll just have to ask them. It should be a pretty simple lathe operation, though.

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Re: 140 Diff. Bearing Retainer

Postby Jim Becker » Sat Jan 05, 2013 11:05 am

Does the groove really need to be there? Without the parts in hand, this is just a guess. If the o-ring is simply put on as far as it will go, will it still contact a machined surface of the case so it will seal? Will it interfere with contact/fitment of the retainer and shims? If it will seal and not interfere with assembly, just put it together.

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Re: 140 Diff. Bearing Retainer

Postby Boss Hog » Sat Jan 05, 2013 12:22 pm

Jim , it is made just like a cub , but larger. I am sure you have seen one off a cub
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