Identify Hydraulic Pump & Need Some Help - Super A or Cu

[RTR]

I work on the offset Farmalls (Cubs and Super A - 140 tractors). Had a few hyd. pumps on the shelf and thought I would try and tackle a rebuild job since I've never done that before. I've ordered some rebuild kits from TM Tractor that are for the Cub hyd. pump. The kit is actually from Case/IH.

First of all.....is this pump from a Cub or the Super A/140 tractors? After I figure that out, then I'll ask my other questions on the rebuild stuff. I've got good detailed pictures of all of the parts too.

Numbers on the pump seemed to read: 05101202003 and 12049p35



 

[Vern]

Looks like it's from a S/A
Vern
 

[RTR]

[teddy52food]

Looks like that cleaner has sodium hydroxide (lye) in it.
 

[IH fan]

Hard white "growth" is aluminum oxide... much the same as rust on ferous metals. I can't say if the cleaner added to it, but it's pretty much normal for old aluminum.
 

[RTR]

[IH fan]

Any flat internal surfaces, I'd get some real fine grit, 400 or smaller, wet or dry sandpaper. Put it on the flatest surface you can find, and wet sand them back flat and clean. Any other surfaces, you could mask off the flats and carefully blast them, but I'd try to use soda as it will not cut the aluminum, but should do the oxide. This is what they use with aluminum airplane parts when they restore old planes. Sand would be bad and glass beads not quite as bad as sand.
 

[RTR]

I do have one of those soda blaster guns from Harbor Frieght, and tried it once on some parts. If I remember correctly, it didn't really do a great job, and made a HUGE mess of dust and soda everywhere. It seemed like it was just "blowing" soda everywhere without any power to clean anything. I'm using an 80 gallon heavy duty oil drive compressor that fills up to 175 psi and shuts off.

[RTR]

Yep. Tried the soda blaster again with the big compressor. Just blew soda everywhere with out really cleaning anything. This is a cub hyd pump I just blasted. You can see the paint, dirt and grease still on it. I flaked off the clump of dirt with a screwdriver and he blaster wouldn't even do it.
 

[glennster]

castrol super clean or purple power as its called is caustic and will eat aluminum. if you spray it on aluminum wheels, you have to rinse it off in about 5 minutes or it will discolor the wheels. i would not do any extended soaking in it.
 

[RTR]