Brake shaft seal replacement help

[89whowner 1]

I'm trying to replace the brake shaft seal on my 1989 312-8. I been prying at what I thought was a seal is actually metal. I'm really stumped here. I checked the parts diagram and it looks like the rubber seal goes right over the bearing. 

[ebinmaine 68,205]

2 hours ago, 89whowner said:

seal is actually metal

 

 

You're doing fine.

That seal IS metal... And neoprene.

 

I normally use a 1/4" wide flat screwdriver to " crush" them in a little, then drive it out in a circular motion.

 

 

[SylvanLakeWH 25,890]

[953 nut 55,734]

If you can punch a small hole in the metal part of the seal and then run a screw into the hole you can pull the old seal out with pliers. Find a piece of PVC pipe to slip over the shaft to drive the new seal in squarely.

[rmaynard 15,580]

I have a 1/8" flat screwdriver that I bent a small hook at the end. The hook slides between the shaft and the neoprene to grab the inside of the metal housing of the seal. A good pull and out comes the seal. You can also get a set of dental picks at Harbor Freight. There is a nice hooked pick in the set.

Edited May 12, 2020 by rmaynard

[SylvanLakeWH 25,890]

32 minutes ago, 953 nut said:

If you can punch a small hole in the metal part of the seal and then run a screw into the hole you can pull the old seal out with pliers. Find a piece of PVC pipe to slip over the shaft to drive the new seal in squarely.

 

 

Used this technique a couple of times - works like a charm...

 

[89whowner 1]

Thanks everyone. The new one from toro is all rubber with no metal. Is the original style still available?

[WHX?? 49,130]

Yes it is, many of us don't buy the ones from Toro as they are known to be quite proud of their parts. Nothing wrong with the all rubber ones tho. 

Looks to be a 3/4" there???  PN 100441

SKF 7410 at any NAPA will get you a 3/4 X 1 X 1/8 with the metal outside ring.

When one has as many tractors as I one tends to buy in bulk.... 

https://www.ebay.com/itm/LOT-OF-3-NEW-OLD-STOCK-SKF-75-SHAFT-OIL-SEALS-HM14-R-7410/392658912836?epid=1356934587&hash=item5b6c4b8644:g:SMkAAOSwqMteLzyX

 

 

BTW 

 

Edited May 12, 2020 by WHX24

[roadapples 6,983]

Wheel Horse Parts and More has them. Check the venders section..

[WHX?? 49,130]

https://wheelhorsepartsandmore.com/gaskets.html#!/Oil-Seal-1303-100441/p/85721166/category=23725662

[ILLinoisWheelhorse312-8 1]

On 5/12/2020 at 8:46 AM, WHX?? said:

Yes it is, many of us don't buy the ones from Toro as they are known to be quite proud of their parts. Nothing wrong with the all rubber ones tho. 

Looks to be a 3/4" there???  PN 100441

SKF 7410 at any NAPA will get you a 3/4 X 1 X 1/8 with the metal outside ring.

When one has as many tractors as I one tends to buy in bulk.... 

https://www.ebay.com/itm/LOT-OF-3-NEW-OLD-STOCK-SKF-75-SHAFT-OIL-SEALS-HM14-R-7410/392658912836?epid=1356934587&hash=item5b6c4b8644:g:SMkAAOSwqMteLzyX

 

 

BTW 

 

FYI, I just yesterday went to NAPA, the new SKU-7411 is the replacement part for the Break Seal. SKU-7410 is the old number

[Colby G 233]

I was replacing the seal on my wheel horse and was wondering if the rubber went toward the brake drum or away. 

[Gasaholic 226]

58 minutes ago, Colby G said:

I was replacing the seal on my wheel horse and was wondering if the rubber went toward the brake drum or away. 

If you look closely at the seal, you may notice one side has a sort of V-Groove in the middle , that side will be slightly wider than the other side. The wide side / Groove goes towards transmission - Newer seals, some may be a metal ring that is encased in rubber seal , so it looks all black rubber but they will still have that sealing lip which creates the "groove" in the middle that will face transmission, with the flatter side out towards brake drum. Just use caution and carefully work the sealing lip over the often sharp edge of the double-d shaft , it is very easy to damage the seal installing it carelessly.  I used to use a piece of brass shim stock (.002" thick) that I would roll into a slight cone shape, stick that in the seal and slide the whole thing down the shaft - as your "cone" of shim straightens out to fit over the shaft, it expands the seal slightly enough to easily slip it over the double-d of the shaft without catching or cutting into the sealing lip. (just make sure the cut edges of shim stock do not have any burrs or curls from cutting touching any part of the seal) 

 

[Colby G 233]

55 minutes ago, Gasaholic said:

If you look closely at the seal, you may notice one side has a sort of V-Groove in the middle , that side will be slightly wider than the other side. The wide side / Groove goes towards transmission - Newer seals, some may be a metal ring that is encased in rubber seal , so it looks all black rubber but they will still have that sealing lip which creates the "groove" in the middle that will face transmission, with the flatter side out towards brake drum. Just use caution and carefully work the sealing lip over the often sharp edge of the double-d shaft , it is very easy to damage the seal installing it carelessly.  I used to use a piece of brass shim stock (.002" thick) that I would roll into a slight cone shape, stick that in the seal and slide the whole thing down the shaft - as your "cone" of shim straightens out to fit over the shaft, it expands the seal slightly enough to easily slip it over the double-d of the shaft without catching or cutting into the sealing lip. (just make sure the cut edges of shim stock do not have any burrs or curls from cutting touching any part of the seal) 

 

So does the rubber go toward the transmission?

Edited August 5, 2023 by Colby G

[Gasaholic 226]

In a nutshell, if I understand your question correctly, yes. If you have a metal side, that goes towards the brake drum, rubber side toward transmission. 

 

[Colby G 233]

14 minutes ago, Gasaholic said:

In a nutshell, if I understand your question correctly, yes. If you have a metal side, that goes towards the brake drum, rubber side toward transmission. 

 

Ok, thank you for the info!