WD Pinion shaft oil seal leak

How to replacing oil seal on an Allis Chalmers WD pinion shaft

I realize it is hard to fully understand a question without details. I will attempt to clarify the area or location of the leak.

I am in the process of replacing the brake drum on my WD. After removing the final drive axle assembly I noticed traces of oil coming out around the seal opening going into the transmission and differential housing. The seal is retained in what is identified as carrier which also retains a shim and bearing cup. There are 6 bolts that hold the carrier to the transmission and differential housing, which are accessible once the final drive axle assembly is removed. It appears that the carrier must be removed from the housing in order to replace the oil seal. I know I have seen some earlier models of Allis Chalmers that showed that the seal could be pulled with removing the carrier but the WD carrier design won't allow this. The primary question I have is can the carrier be removed without having to disassemble the differential or is there concerns of parts getting displaced by removing the carrier casting.

If you do one bearing carrier housing at a time and keep the shims to that side the ring gear carrier will not fall down to much that it will go back in place, put a little sealer on all the bolts.

3 WD45's with power steering,G,D15 fork lift,D19, W-Speed Patrol, "A" Gleaner with a 330 corn head,"66" combine,roto-baler, and lots of Snap Coupler implements to make them work for their keep.

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Bassman62 Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 19 Nov 2016 Location: Muscatine, Iowa Points: 6	Post Options Post Reply Quote Bassman62 Report Post Thanks(0) Quote Reply Topic: WD Pinion shaft oil seal leak Posted: 11 Jan 2018 at 4:29pm
	How to replacing oil seal on an Allis Chalmers WD pinion shaft

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MACK Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 17 Nov 2009 Points: 7664	Post Options Post Reply Quote MACK Report Post Thanks(0) Quote Reply Posted: 11 Jan 2018 at 9:49pm
	If you are talking about ring and pinion, there is no seal there. If you are talking about final drive, remove final drive, remove brake drum, unbolt tube housing from final housing. Use metal screws and slide hammer to remove old seal. MACK

Bassman62 Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 19 Nov 2016 Location: Muscatine, Iowa Points: 6	Post Options Post Reply Quote Bassman62 Report Post Thanks(0) Quote Reply Posted: 12 Jan 2018 at 8:07am
	I realize it is hard to fully understand a question without details. I will attempt to clarify the area or location of the leak. I am in the process of replacing the brake drum on my WD. After removing the final drive axle assembly I noticed traces of oil coming out around the seal opening going into the transmission and differential housing. The seal is retained in what is identified as carrier which also retains a shim and bearing cup. There are 6 bolts that hold the carrier to the transmission and differential housing, which are accessible once the final drive axle assembly is removed. It appears that the carrier must be removed from the housing in order to replace the oil seal. I know I have seen some earlier models of Allis Chalmers that showed that the seal could be pulled with removing the carrier but the WD carrier design won't allow this. The primary question I have is can the carrier be removed without having to disassemble the differential or is there concerns of parts getting displaced by removing the carrier casting.

Dave H (NE) Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Joined: 11 Sep 2009 Location: Western NE Points: 288	Post Options Post Reply Quote Dave H (NE) Report Post Thanks(0) Quote Reply Posted: 12 Jan 2018 at 8:13am
	Yes you can remove the carrier and replace the seal. The diff will stay in place.

Don(MO) Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 12 Sep 2009 Location: Bates City MO. Points: 6862	Post Options Post Reply Quote Don(MO) Report Post Thanks(0) Quote Reply Posted: 12 Jan 2018 at 8:52am
	If you do one bearing carrier housing at a time and keep the shims to that side the ring gear carrier will not fall down to much that it will go back in place, put a little sealer on all the bolts.
	3 WD45's with power steering,G,D15 fork lift,D19, W-Speed Patrol, "A" Gleaner with a 330 corn head,"66" combine,roto-baler, and lots of Snap Coupler implements to make them work for their keep.

Bassman62 Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 19 Nov 2016 Location: Muscatine, Iowa Points: 6	Post Options Post Reply Quote Bassman62 Report Post Thanks(0) Quote Reply Posted: 12 Jan 2018 at 9:57am
	Thanks to all those who responded to my question. I am a fairly new member of the forum and I know there is great support out there with folks who love the orange paint. Thanks Again!