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'B' Transmission seal
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Alberta Phil View Drop Down
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Joined: 13 Sep 2009
Location: Alberta, Canada
Points: 3662 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Alberta Phil Quote  Post ReplyReply Direct Link To This Post Topic: 'B' Transmission seal
    Posted: 04 May 2013 at 4:59pm
My '47 B has developed a significant oil leak from the transmission to torque tube joint. I suspect the front seal in the transmission is shot. Can it be replaced by splitting the tractor at that joint?  Can the seal be replaced without pulling the whole transmission apart? 
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CTuckerNWIL View Drop Down
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Joined: 11 Sep 2009
Location: NW Illinois
Points: 22816 		Post Options Post Options   Thanks (0) Thanks(0)   Quote CTuckerNWIL Quote  Post ReplyReply Direct Link To This Post Posted: 04 May 2013 at 5:22pm
By looking at the manual I have, you split the torque tube from the front of the tranny, remove a pin or cotter key and then separate them. The seal should be right there in front.
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Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF
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Alberta Phil View Drop Down
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Joined: 13 Sep 2009
Location: Alberta, Canada
Points: 3662 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Alberta Phil Quote  Post ReplyReply Direct Link To This Post Posted: 04 May 2013 at 7:58pm
Thanks, Charlie.  I've got a dealership service manual and it is extremely vague on this operation, which is unusual in that they are usually quite detailed.
 I'll tear into it on Monday.
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sparky View Drop Down
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Joined: 13 May 2011
Location: So. Indiana
Points: 1467 		Post Options Post Options   Thanks (0) Thanks(0)   Quote sparky Quote  Post ReplyReply Direct Link To This Post Posted: 04 May 2013 at 8:24pm
I had to replace that seal on my CA. I also re-gasketed the lower gear shaft cover cap below it while I was in there.

Edited by sparky - 04 May 2013 at 8:25pm
It's the color tractor my grandpa had!
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Cal View Drop Down
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Joined: 14 Sep 2009
Location: East Woodstock
Points: 172 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Cal Quote  Post ReplyReply Direct Link To This Post Posted: 05 May 2013 at 9:18pm
If I remember correctly when my B had that problem many years ago, when I split the tractor at the tranny there was  amouse nest at the rear of the tourqe tube and ahole had rusted through the thin steel cap that covers the lower bearing. a little epoxy and evicting the mice fixed the leak. Then trying to find a dive shaft with a good spline was another problem, Cal in Ct.
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Alberta Phil View Drop Down
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Joined: 13 Sep 2009
Location: Alberta, Canada
Points: 3662 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Alberta Phil Quote  Post ReplyReply Direct Link To This Post Posted: 06 May 2013 at 9:27pm
Got the tractor split today and found the problem. The seal was a little loose in the seal retainer and the oil was leaking out between the seal and the retainer.  The leather on the seal seems to be OK and it fits snug on the shaft. I'm going to replace it anyway. I have already installed a new gasket on the lower bearing cap. 
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