It could be a couple things a pic would help, might be an inner seal , or could be coming from where the case splits. not a bad fix

 

engine oil, gear oil ?

 

More than likely the transmission seal is leaking. the only other leak would be a rear main seal under the flywheel, most of the time it would leak out the inspection plate on the torque tube.

assuming it has hydraulics , another common leak area is the bottom seal on the hyd unit. Another thing to watch out for is the engine oil level, if the hyd pump is leaking it goes into the engine oil. if you have to add hyd oil,and see no evidence of a leak on the outside, the pump seal is probably bad.

 

I think you are correct, that it is the transmission seal leaking. The oil that is leaking is black but I thought the trans. oil is always red? Am I wrong on this?

Can I use regular transmission fluid on this?
Thanks,
Joe

 

Still trying to upload. What happens if I keep driving it??

 

there should be a plug on the left hand side of the transmission down low to check the level. the plug on the top is where you add fluid. regular 80-90 wt gear oil is all it is.

do not over fill is, if the axle seals are bad it will leak down the axle tube and soak the brake pads with gear oil.

if you plan on keepin the tractor invest in a manual.

 

Finally able to upload a couple of pictures. This hole is underneath the tractor, right below the gear shift. The oil is leaking out of this hole. Can you tell me what I need to do?
Thanks!!!
Joe

 

I believe thats the timing mark hole. Its either the main or trans seal, need to split the tractor. Probably still has the original leather seals in it. Do them both while its down. Hyd's were external on those, if I recollect proper.

 

that is not the timing mark hole.
Yesterdays tractors should have a manual for sale. You have a seal leaking, it need replaced. transmission seal is easier then the rear main. But considering the age of the tractor it probably needs both plus the axle seals.

you will need a way to roll the rearend away from the rest of the tractor and a way to support the rest of the tractor. Since you are asking what is leaking I assume you are not mechanically inclined.

 

Since you are asking what is leaking I assume you are not mechanically inclined.

Ha! Not only do I not know how to do it, I don't have the tools for it either.

 

That tractor uses 80w90 gear oil in the transmission, not atf which is red. It is not hard to repair but the tractor will have to be split to do it. The check plug is a pipe plug on the side of the transmission and the oil should be just at the bottom of the hole, or even better just run out.

 

My 1st tractor was a Farmall B. I believe your rear main engine seal is leaking. The transmission oil in mine, 80w or 90w, never turned dark. These engines were designed to use non-detergent oils and if modern oils were used that could have started the leak. Leather seals and detergent oils don't always mix well. The timing mark was on the front pulley, as I remember. It's gonna require splitting the tractor to repair. That's a "BIG" job for a non-mechanical type. If it was me, I'd see if I could maybe trade into some a little more modern. Those old draw-bar tractors are neat. But, something with hydraulics, and a three-point hook-up give a lot more options, not to mention safety.