hydraulic oil in engine oil

[alweld39@gmail.com]

Hi guys,is it possible for hydraulic oil to get into crankcase on a 1954 farmall cub? If so, wear do I look for the leak. Thank you for your time. Al.

[Eugene]

Yes. Hydraulic pump leak.

[Jsjboss]

I agree, the hydraulic pump needs new bushings and seal

[SamsFarm]

You can search the site and find threads like the one below on the subject.

http://farmallcub.com/phpBB2/viewtopic.php?f=1&t=101745&p=804371&hilit=Hydraulic+oil+in+crank+case&sid=4c5158d14d996e18a9602696987d9e95&sid=4c5158d14d996e18a9602696987d9e95#p804371

[Clemsonfor]

Or fill the touch control with the same engine oil. Keep TC filled and when engine oil get too much let some out. Easy and simple till you get the time to fix it...or if you think you can't or won't this will get you by without thinning the oil down.

[Glen]

Hi,
The Touch Control pump is mounted on the engine, on the left side, down forward of the carburetor.
It has the Touch Control tubes attached to it, they are 2 tubes that go from the Touch Control to the pump.
If the pump shaft o ring is worn and leaking, the Touch Control fluid will go into the engine oil pan.
Then the oil level goes up on the dip stick.
If this is happening, the pump needs removing and the shaft o ring replaced.

You have to drain the Touch Control fluid, and remove the tubes to remove the pump.

The tubes are held on the Touch Control unit with 3 bolts, there is a gasket there between the tubes and the unit.
The tubes are held on the pump with 2 bolts, there are 2 o rings there, between the tubes and the pump.

Below is a page from the 1955 Cub operator's manual showing the parts of the system, and where the pump is.

http://farmallcub.com/rudi_cub/www.clea ... age-65.jpg

Below is a page from the same manual telling how to drain the Touch Control fluid.
Be sure to remove the filler plug before the drain plug, like it says. There can be some pressure in the unit that can make the fluid squirt out the drain plug hole.
Removing the filler plug first should let out most of the pressure.
Use only down to paragraph 3 to drain the system.

http://farmallcub.com/rudi_cub/www.clea ... age-67.jpg

TM Tractor at the bottom of the page sells the Case IH rebuild kit for the Touch Control pump.
It comes with the o rings for the pump, gasket and o rings for the Touch Control tubes, and a gasket between the pump and the engine.
Below is the listing.

http://www.tmtractor.com/new/hy/288fp.htm

Below is a post from the How To section about rebuilding the pump that is good, I would use that.

viewtopic.php?f=141&t=44196

Below is pump info, if you need it.

2 of the 4 bolts in the Touch Control pump hold the pump onto the engine, the upper left, and lower right bolts, looking ahead from behind the pump.
You can loosen the other 2 bolts while the pump is on the engine, but don't remove them, so the pump doesn't fall apart, before you take it to a clean work bench.
Keep everything inside the pump clean.
Put new Case IH Hy-Tran fluid, or other brand approved fluid, on the parts inside the pump during assembly.

The pump shaft where the o ring runs has to be flat and in good condition. It may need smoothing with fine sandpaper.
Sometimes the shaft wears, and there is a groove. If there is a groove, it needs repair.

The pump drive gear has a special lock washer on it, to keep the nut from coming off.
You have to straighten the place on it that is bent over 1 of the flats of the nut, to unscrew the nut. Then when you are done, and put the nut on again, you have to bend 1 side of it over 1 of the flats of the nut.
The washer should have a tab that sticks into the keyway of the shaft, if the tab is broken, it needs a new lock washer. There is nothing to keep the washer and nut from turning without the tab on the lock washer.
Below is a listing at TM Tractor for a new lock washer.

http://www.tmtractor.com/new/hy/562fp.htm

If the lock washer it has looks good, you can use it again.

Be sure there is a gasket between the pump and the engine.

While it is drained, after you repair the pump, is a good time to put in new fluid.

Below is a page from the same manual telling how to fill the fluid in the Touch Control, and remove the air from the system, after you repair the Touch Control, beginning at paragraph 3.
Be sure to do what it says in paragraph 4 to remove the air from the system, the arms should go through their full travel 10 - 12 times.
Be sure to fill it the last time with the arms in the rear, or down position.

http://farmallcub.com/rudi_cub/www.clea ... age-67.jpg

The Touch Control fluid mentioned in the manual for the Touch Control, was changed later to Case IH Hy-Tran fluid. It is sold at Case IH dealers.
There are other brands, be sure it works with IH hydraulic systems before buying one.

Below is a pic from TM Tractor of the Touch Control pump, showing the drive gear, nut, and lock washer.

[Glen]

Or fill the touch control with the same engine oil. Keep TC filled and when engine oil get too much let some out. Easy and simple till you get the time to fix it...or if you think you can't or won't this will get you by without thinning the oil down.

Hi,
I think Jim B. has said on here to not use motor oil in the Touch Control, it is not good for the o rings is what I think he said.
Just saying in case you didn't read his info about it before.
Thick motor oil is also harder for the pump to pump through the system.
Hy-Tran fluid is thin fluid.
Just my opinion.

[alweld39@gmail.com]

Hi Guys, thank you all for the answers, I guess I'll take off the pump and put o-rings and gaskets. Thank you Al.

[Dale Finch]

Just to clarify, you need to replace the pump SHAFT SEAL (probably an o-ring, but could be a seal). Then you will need to reinstall the hydraulic manifold with the new gasket at the TC Block & 2 new o-rings at the pump end.

[Clemsonfor]

Or fill the touch control with the same engine oil. Keep TC filled and when engine oil get too much let some out. Easy and simple till you get the time to fix it...or if you think you can't or won't this will get you by without thinning the oil down.

Hi,
I think Jim B. has said on here to not use motor oil in the Touch Control, it is not good for the o rings is what I think he said.
Just saying in case you didn't read his info about it before.
Thick motor oil is also harder for the pump to pump through the system.
Hy-Tran fluid is thin fluid.
Just my opinion.

Yea it's not optimal but this unit already is leaking and not in good condition. This would be something a person who wasn't going to fix it would do. Most of us would just fix the issue.

[Glen]

Hi,
The instructions with the pump repair kit from TM Tractor, that I posted above, show that the first pumps had the oil seal on the pump shaft.
There is a number stamped in the pumps by the maker. The pumps with number 05 1004 040 01 had the oil seal.
All the other newer pumps had the o ring.
Those numbers are the same, but the last 2 numbers are 02, 03, 04, 05, 06.

Some people have changed pumps to use the oil seal, so it could have that.