Seal replacement

[Ted in NE-OH]

How do the pros remove seals with the shaft still in place. I needed to replace the pulley end(rear) seal on my Allis G. This seal was 3/4 in thick, enclosed in steel and pressed in the the housing cover. I took it out in pieces, what a bear. There must be a better way. How do you do it??

 

[Anonymous-0]

I drill a hole in the outer metal piece, in 2 or 3 places, screw in a sheet metal screw, and tap it out with a slide hammer. Doesn't work on all seals, but when it works, it sure saves time!

 

[waltdavies]

You can actually buy a nice slide hammer with the screw end for removing these seals it can be used for lots of other things with different attachments, they don't cost much.
Walt

 

[waltdavies]

You can actually buy a nice slide hammer with the screw end for removing these seals it can be used for lots of other things with different attachments, they don't cost much.
Walt

 

[rrlund]

I had to pull one out of a steering hydramotor a few months ago. I stuck two good Snap-on o-ring picks between the rubber and the shaft. I turned them out so they got ahold of the metal,then I worked them around as I pulled and it didn't take much to pop the seal right out.

 

[JD Seller]

I have used the screw trick like some of the guys posted. The handiest tool is a seal puller like in the picture. You get the hook under the lip. Then put some force on the 90 degree handle and hit the back hook with a hammer. Most seals will just pop out. The one I have is a Snap On one. The cheap ones will break the small hook off.

 

[Steve@Advance]

I've done it a few times, but it's risky business, especially on the smaller ones.

The sheetmetal screw slide hammer works, sometimes you have to "cave in" the outer ring with a sharp chisel to relieve the press fit in the housing.

Just be very careful not to gouge the shaft or the housing bore. Weigh the risk... How much trouble will it be to disassemble this and clean everything up, do it right... Or take a chance of damaging something...

 

[Mike M]

Those old style thick seals sure can be a bear to remove. But they sure stayed put too and didn't want to pop out if you got some case pressure behind them. These new seals are so flimsy it's very hard to keep from damaging them.