1953 Transmission Oil Change

[57j2olds]

Good morning,

In lieu of the fact that this is my first tractor, and I would rather hear it from you all vs search forum, what are the steps and oil type for changing the transmission oil in a 1953 Cub?

I cant tell you when the last time it was changed, so I assume it needs it.

Thanks

[inairam]

I have found reading the manuals are a good first step to familiarize yourself with the tractor and how to do things and then ask a specific question here.

There is a drain plug under the transmission. Many members recommend Hy-Tran or equiluminant oil for transmission. I use 90wt gear oil.

[Dale Finch]

I use 90wt Gear oil from NAPA. Depending on what the drained oil looks like, you may want to flush the transmission with kerosene, run it around for a few minutes to circulate, then drain it. Reinstall the drain plug (on the bottom right front of the transmission block) and remove the small square head "full level" plug located on the lower left SIDE of the transmission block (between the fender and block).

Then remove the larger filler plug on top of block, just bebind the shifter, and add gear oil until it starts running out the level plug on the left. It should only take about 3 1/2 PINTS. DO NOT OVERFILL...that is the usual cause of differential seals leaking...all over the brakes!

[tmays]

I would add another step to what’s already mentioned. I would pull the transmission cover and check the general condition of things and make sure that oil can get to the bearings. Oil flows down a channel and sometimes can get blocked by crud

[Don McCombs]

The drain plug can be seen in this photo from TM Tractor Parts. It is the square head plug in the lower, center of the case.



I use this 90wt gear oil from Tractor Supply

[57j2olds]

So you actually run the tractor with your kerosene for five minutes? It won’t hurt anything without any oil in it?

[Eugene]

So you actually run the tractor with your kerosene for five minutes? It won’t hurt anything without any oil in it?

Kerosene is a very light lubricant. Just drive the tractor around on fairly level ground.

Kerosene is expensive. Diesel fuel is much cheaper and will do the same job. I would save the kerosene or diesel fuel along with waste engine oil for starting brush pile fires. Might put it in the parts washer if it wasn't to dirty.

I use diesel fuel in the parts washer. Doesn't freeze and when I clean it out, brush pile fire fuel.

[57j2olds]

Will it hurt to use 80w90?

[Don McCombs]

So you actually run the tractor with your kerosene for five minutes? It won’t hurt anything without any oil in it?

In the transmission.

[Glen]

Hi,
The Cub transmissions commonly get water in them, from rain, or condensation inside the case over time. When you drain the oil, see if there is water also. If the oil looks thick and brown, it probably has water in it. There can be water sitting in the bottom of the housing also.

Below are pages from the 1950 Cub owner's manual telling about changing the transmission oil.

http://farmallcub.com/rudi_cub/www.clea ... e%2020.jpg

Illustrations 37 and 38 on this page below show where 2 of the plugs are. The drain plug is visible from under the platform.

http://farmallcub.com/rudi_cub/www.clea ... e%2021.jpg

80W-90 gear oil is ok to use, it is the modern oil. Multi weight oils were probably not made when the old manuals were made.

[Denny Clayton]

So you actually run the tractor with your kerosene for five minutes? It won’t hurt anything without any oil in it?

In the transmission.

Definitely the transmission, NOT the engine.