Rear Wheel Seal

[farmall]

My neighbor has a 92' D-250. He has just replaced the rear brakes and seals. The problem is he can't get them to seal. He has tried 2 different seals and they both are leaking. So he wanted me to ask if there is a special way to put them in or is he having dumb luck? When you put them in the hub, do you drive them in as far as they will go or what? Any info would be appreciated as I will pass it along to him. Bill

 

[Paychk]

Have him check where the seals ride on the spindle, what he needs to look for is a grove worn by the old seal, I bet there is one there. If it is worn, then he could install a speedi-sleeve, this is a very thin hard chromed item that is pressed on to repair the damaged area. BTW the seals are installed into the hub until they're are flush with the edge of it.



http://www.chicago-rawhide.com/auto/speedi/speedi.htm

http://chicago-rawhide.com/auto/garage/techtp06.htm



PS There are some offset seals that move the seal lip away from the grove. I know that these are made for crankshaft seals, I'm not sure if this offset seal is available for this application.

 

[Philip]

I just drive them down till they are flush with the outer edge of the hub.



What are the spindles like in the area where the seals ride. Do they have a grove in them? If they have a grove you need to get a speedy sleeve and install it to give yourself a new wear surface for the seals to ride on. You can get speedy sleeves at any "good" parts store. If you find a parts store that says they can't get them or have never heard of them. Do not go back there agin.

 

[AlK]

From a 3/4 inch piece of plywood cut a round disk slightly smaller than the seal and lay it on top of the seal and then drive the seal in place - this way you will not damage the seal. Also it is important that the hub is properly centered when you lift it on the axle or the seal may get damaged. I just did a rear brake job and replaced both seals - no leaks.

---

Al

 

[paccool]

Ditto on what the guys said about the "speedy sleeves". This is a common problem on the first gens and lots of us have had to install the sleeves. Do a search and you will find lots of info on them.

 

[BushWakr - RIP]

I've had exactly the same problem when my brakes were checked/repaired. On two occasions I thought the seal(s) were damaged. It turned out that once the hypoid leaks out it gets between the drum and it's "plate" (my word) and appears to be leaking but is only spinning "old" oil out.



The third time this happened I left it alone for a few days, and it dryed up on it's own, and no problem since.

Just my personal experience, FWIW.



Bob.