Allis Chalmers C Rear Axle Oil Seal

[Larry Hardesty]

This is the continuing saga of my 1942 Allis Chalmers C. I have the back wheels off, and it looks like while I do I should replace rear axle oil seals since there is quite a bit of oil leaked onto the rear wheels.

I do have the service manual and parts manual, but after 70 years, some things do not come apart like the manual says they will. Is there any trick I should know about taking off the flanged rear axle and replacing the oil seals? Looks like there is a spacer seal (part 295510) and an oil seal (part 206459). Where can I purchase them? And, anything else I should look for or check on while I have the flanged rear axle off?

Thanks in advance.

Larry
 

[Ted in NE-OH]

The whole axle has to be removed. The cover in the inside of the bull gear housing must be removed, then the bolt with shims is removed, then the axle is either driven or pushed out. Then the outer bearing is removed and the oil seal is put on the axle and the process is reversed. I forgot inside the bull gear housing is a big nut the holds the bull gear on the axle that must be removed, I use big channel lock pliers on that.
 

[RalphWD45]

This is a real good time to replace the seals around the shafts where they enter the hydraulic fluid housing. they will leak oil into the brake area and run thru the axle housing, onto the ground. Dick L and OLD, also know quite a bit about these, if they answer. Poasting is real slow today, so they may be reluctant to reading the forum.
 

[Larry Hardesty]

Ralph, Are you referring yo replacing the seals (206449 and 800351) on the main shaft (223427)? Will I have to take off the final drive housing? It looks like a heavy piece. If I have to remove it, any idea of its weight? I need to check to see if those seals are available via Yesterday's tractors or the local AGCO dealers. Thanks
 

[Larry Hardesty]

Ted, Thanks, by whole axle, are you referring to the flanged axle that connects to the wheel rim? And not the shaft assembly coming out of the transmission. I suppose per Ralph, I should replace the seals on it too but looks like a lot more effort. I have the pictures from the parts book but I don't see the big nut holding the bull gear on the housing. Thanks for the heads up on it.

Larry