Farmall C - Leaking gear oil

C. Amick · Jul 21, 2013

I have quite a bit of gear oil leaking out around the shaft that the brake pedals are mounted to. There's a puddle of oil on the floor everytime I park it. Parts drawing doesn't show a shaft seal. I thought it might be overfilled with gear oil and removed the level plug and nothing came out. Anyone else ever have this problem?

Rick Remmert · Jul 21, 2013

Yes, there is a seal on each end to the shaft. It is just a lip type. If you can't find the number or no one on here answers back with it, let me know I can get it for you tomorrow. You will have to drain a gallon or so out of the rear end as you will have oil running out of the shaft holes when you remove the shaft. Before you pull the shaft, remove the woodruff keys as it will make removal easier.

CNKS · Jul 21, 2013

The seals, one on each side are shown on page 115 #8 in the parts book. The diagram is of the frame/transmission housing,etc.

C. Amick · Jul 22, 2013

I assume the replacement proceedure is: remove the shaft, remove the old seals, re-install the shaft and then slide the new seals down the shaft? If you can give me the seal part number, I would appreciate it. I still don"t see it shown on the parts diagram that I downloaded from Case/IH.

Rick Remmert · Jul 22, 2013

The IH number is a 360-076-R92. It takes 2 of them. Or you can do what I did, go to a bearing supply store or NAPA etc. and buy a Chicago Rawhide #11171 for $5.60 each. I drained some of the oil out of the rear end, pulled all 3 pedals off and removed the 2 woodruff keys out of each end. Pay attention how the pedals come off as there a spacer washers on the shaft. You need to get it back together like it came apart. You can just remove one key and pull the shaft out from the other end if you want. Both of mine came right out. If you have not drained enough oil out you are about to find out the messy way! Pop both seals out and install the new ones. Take some emery cloth and clean the both ends of the shaft where the seals run. Reassemble.

Dennis K (WA) · Jul 22, 2013

The lips of the seals, spring side, need to face the oil.
So, I would install the seal on the side you intend to slide the shaft in from, slide the shaft through the housing and install the opposite side over the shaft and then drive it into the housing with a piece of pipe or a punch.
If you try to slide the shaft in against the lip of the second seal you will probably damage it.
I would drain all of the oil and save a mess.
good luck
Dennis

rhtx55 · Jul 22, 2013

One trick I had to learn the hard way, is use some typing or copy paper, or masking tape to cover up the keyways on the shaft when you re-install it. Sliding the sharp key ways on the shaft through the new seal will cut them & they will leak like a sieve, & (don't ask me how I know this) you will get to replace them again. Good thing is by the second time around you get very efficient at removing & installing them ....

C. Amick · Jul 22, 2013

Thanks everyone for the information.

mkirsch · Jul 23, 2013

I don't know how much good it does, but where I can, I wrap some paper over the shaft, slide the seal on the paper, then slide the paper and seal together along the shaft until it's almost in place, then remove the paper.

This, in my mind anyway, prevents most any damage to the seal lip. Sometimes it works sometimes it doesn't.

Farmall C - Leaking gear oil

C. Amick

Well-known Member

Rick Remmert

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CNKS

Well-known Member

C. Amick

Well-known Member

Rick Remmert

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Dennis K (WA)

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rhtx55

Member

C. Amick

Well-known Member

mkirsch

Well-known Member

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