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SA Steering Gear Housing leak

Farmall Super A, AV, 100, 130, & 140 1939 - 1973
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Dale Finch
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SA Steering Gear Housing leak

Postby Dale Finch » Wed Sep 07, 2011 9:06 pm

Last week I actually added some of the fluids to my '48 Super A, which included the steering reservoir. Alas, the next day there was a puddle under the front axle. I removed the front axle to get access to the housing, to determine why it was leaking. I had replaced the Steering Worm Wheel Shaft Oil Seal (#24, http://www.cleancomputes.com/Cub/Super%20A%20-%20Super%20AV/TC-39B%20Parts%20Catalog/Page%20178.jpg). Upon closer examination, it appears that the seal is actually leaking around the OUTSIDE of the seal, rather than the rubber part of the seal through which the shaft protrudes.

Has anyone ever experienced or know of this? I can't see why it would be leaking there...as far as I know, I cleaned the seat, and saw no scoring marks, cracks or anything else that would keep it from sealing. I generally make sure surfaces like the seat would be shiny metal before it is inserted, and I am sure the seal didn't just drop in, it was a press fit.

Since I would prefer NOT to have to split the housing to remove the shaft, which would allow me to easily remove the seal, do you think I can (carefully) drill and insert two screws into the metal ring of the seal and with them, pull it out from around the shaft? I have a new seal.
If anyone can come up with another solution to this, I would appreciate the input. :big give up:

Dale F
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Dale Finch
10+ Years
10+ Years
Posts: 6645
Joined: Tue Apr 27, 2010 11:34 am
Zip Code: 27517
Tractors Owned: '51 Cub #140966 "Bruno" with Woods 59 mower
'55 Cub #187541 "Betty" with Fast Hitch
'55 Cub #190482 "Ben" with Woods 42 mower
'55 Cub #191739 "Bertha" with Woods 42 mower
'56 Cub #194370 "Boris" with Mott Flail mower
Circle of Safety: Y
Location: NC, Chapel Hill

Re: SA Steering Gear Housing leak

Postby Dale Finch » Thu Sep 08, 2011 10:00 pm

Well, since nobody said I shouldn't drill and pull, that's exactly what I did today!! Two tiny holes, 2 screws, 2 pairs of vice grips, a couple of large screwdrivers, and success!! I managed to get the seal off past the steering gear shaft. When I examined it, it was quite obvious why it leaked. It may be difficult to see, but at the edge of the recess for the seal, there were a few damaged edges.
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This caused the outside edge of the seal to be dented as it was pressed past these spots. Once the seal was seated, these dented spots allowed oil to leak past.
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To repair it, I ground off the small protrusions, then sanded it with my home made "hone".
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When it looked and felt smooth enough, I carefully seated a new seal, and filled the housing with fresh gear oil.
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I guess tomorrow will show me if it worked...there will either be a puddle beneath it, or I can move on to getting the final "re-panned"!!
And then I have THREE cubs to get going. Cubitis sure keeps you busy!!

Dale F
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RaymondDurban
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Re: SA Steering Gear Housing leak

Postby RaymondDurban » Sun Sep 25, 2011 12:30 am

Great fix! A little Indian Head varnish around the outside of the seal before installation would give you a bit of added insurance.

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Dale Finch
10+ Years
10+ Years
Posts: 6645
Joined: Tue Apr 27, 2010 11:34 am
Zip Code: 27517
Tractors Owned: '51 Cub #140966 "Bruno" with Woods 59 mower
'55 Cub #187541 "Betty" with Fast Hitch
'55 Cub #190482 "Ben" with Woods 42 mower
'55 Cub #191739 "Bertha" with Woods 42 mower
'56 Cub #194370 "Boris" with Mott Flail mower
Circle of Safety: Y
Location: NC, Chapel Hill

Re: SA Steering Gear Housing leak

Postby Dale Finch » Sun Sep 25, 2011 4:04 pm

I guess I have heard of that, but will check it out...lots of other work to still do, so it could come in handy. Thanks, Raymond
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Pabst
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Re: SA Steering Gear Housing leak

Postby Pabst » Mon Sep 26, 2011 11:14 am

Yes, that is a terrific fix for the seal to make a snug fit! Great job BD Finch! Pabst :D

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Dale Finch
10+ Years
10+ Years
Posts: 6645
Joined: Tue Apr 27, 2010 11:34 am
Zip Code: 27517
Tractors Owned: '51 Cub #140966 "Bruno" with Woods 59 mower
'55 Cub #187541 "Betty" with Fast Hitch
'55 Cub #190482 "Ben" with Woods 42 mower
'55 Cub #191739 "Bertha" with Woods 42 mower
'56 Cub #194370 "Boris" with Mott Flail mower
Circle of Safety: Y
Location: NC, Chapel Hill

Re: SA Steering Gear Housing leak

Postby Dale Finch » Mon Sep 26, 2011 10:08 pm

So far no leaks there or the final that I just replaced 3 seals in...this time I paid particular attention the the lips of the housings, too!! :thumbsup:
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RustyFarmall
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Re: SA Steering Gear Housing leak

Postby RustyFarmall » Tue Sep 27, 2011 9:43 am

Good job!! A little ingenuity goes a long ways when working on these old tractors because, due to wear and tear and botched repairs done by previous owners, quite a few repairs can no longer be done "by the book".


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