PTO leaking

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Binky Tremain
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Joined: Sun Aug 29, 2021 9:07 am
Zip Code: 19063
Tractors Owned: 1948 Cub
Location: Middletown, Pa

PTO leaking

Postby Binky Tremain » Tue Sep 14, 2021 4:28 pm

Trying to ease my oil leaks. Oozing is acceptable, but I have a leak from the PTO that causes a mess. I don’t use the PTO and never will…is there a simple, yet acceptable fix?

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Glen
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Tractors Owned: 1956 Farmall Cub with Fast Hitch, F-11 plow, Disc, Cultivator, Cub-22 mower
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Location: Wa.

Re: PTO leaking

Postby Glen » Tue Sep 14, 2021 6:10 pm

Hi,
First you could check the transmission oil level, the Cub operator's manual shows how.
Some of them have water in them, with the oil, raising the oil level up.
The oil level plug is low on the left side of the trans.
The trans holds 3 1/2 Pints of oil, to fill it to the level plug hole.
If the trans has water in it, the oil should be drained and changed.
The drain plug is visible from under the platform.

The PTO shaft has an oil seal. It's not hard to replace the seal.

Below is a listing at TM Tractor for a new seal.

http://www.tmtractor.com/new/pt/482fp.htm

It could be leaking from a gasket, you didn't say.

You have to remove the PTO out the rear of the housing to replace the seal, the way the Cub service manual shows.

Below is the Cub service manual.
I would read section 6A, the PTO section, it shows how to do the job.
If the ball bearing is worn, while the PTO is apart is a good time to replace it.
The new seal is probably thinner than the original seal. Drive the new seal in to flush with the outside of the housing.
Don't hammer directly on a new seal, use a piece of clean flat metal on the seal, or something else metal.
The seal lip has to face ahead.
Oil the seal rubber, and the shaft where the seal runs before putting it together.
After putting the PTO together again, I grease the grease fitting before putting the PTO in the housing, then I can see grease come out around the bearing. It takes some grease to fill the area between the seal and bearing.
If you don't have the Belt Pulley Attachment shown in section 6A, disregard the info for it. :)

http://farmallcub.com/rudi_cub/www.clea ... index.html
Last edited by Glen on Thu Sep 16, 2021 4:25 pm, edited 1 time in total.

Bob McCarty
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Re: PTO leaking

Postby Bob McCarty » Tue Sep 14, 2021 6:26 pm

Where is it leaking from? If from the seal around the shaft, the tranny is overfull as Glen stated. If from one of the gaskets, replace the gasket. You can also remove the PTO unit and put a cover plate over the opening with a gasket.
"We don't need to think more,
we need to think differently."
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Binky Tremain
Posts: 16
Joined: Sun Aug 29, 2021 9:07 am
Zip Code: 19063
Tractors Owned: 1948 Cub
Location: Middletown, Pa

Re: PTO leaking

Postby Binky Tremain » Wed Sep 15, 2021 11:42 am

Leaks from around the shaft and oozes down back of tractor.

Cover plate sounds interesting, but I did a quick search and don’t see any out there.

Thanks everyone for the help!

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Don McCombs
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Location: MD, Deep Creek Lake

Re: PTO leaking

Postby Don McCombs » Wed Sep 15, 2021 12:03 pm

Buy the gasket and use it as a pattern to make one.
Don McCombs
MD, Deep Creek Lake

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Bob McCarty
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Location: CO, Longmont

Re: PTO leaking

Postby Bob McCarty » Wed Sep 15, 2021 1:20 pm

Binky Tremain wrote:Leaks from around the shaft and oozes down back of tractor.

Cover plate sounds interesting, but I did a quick search and don’t see any out there.

Thanks everyone for the help!

Put a wanted in the Vine Classified subforum. Someone close by may have one.
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we need to think differently."
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Gary Dotson
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Re: PTO leaking

Postby Gary Dotson » Thu Sep 16, 2021 7:42 am

If you want to eliminate the pto, get a cover from a Cub Cadet, they’re plenty full. Or just pull the seal and replace it, no disassembly required. Drill a couple holes in the seal shell and pop the old seal out with a slide hammer (dent puller) and drive a new seal into place. About a 15 min. Job.

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Barnyard
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Re: PTO leaking

Postby Barnyard » Thu Sep 16, 2021 9:14 am

I agree with Gary. Somebody may want to use that PTO some day.
There are two ways to get enough Cubs. One is to continue to accumulate more and more. The other is to desire less.

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