Oil Seals?

[wake49 18]

I bought seals to replace the old, worn-out seals at the axle, transmission pulley and brake housing. I cross referenced at the SKF site.

 

I ordered 3 of the 9815 (which replaces the 1232 oil seal) and 1 of the 7410 (which replaces the 1303).

 

My question is: which way do these seals install? My intuition tells me the concave part sits towards the transmission and the flat metal part is visible when installed. In the picture I included, I assume what is facing up faces the transmission.

 

Can anyone verify that for me?

 

[rmaynard 15,631]

You are correct. As pictured, that side goes toward the transmission.

[pacer 3,174]

Yes, that goes to the tranny ... Use much care when sliding it onto the axle, the lip will tend to push out as you are working it on, kinda rotate the seal as you gently push it over the axle. Clean the axle stub with some fine sandpaper and lightly coat with some oil before...

[doc724 925]

And, as someone on RS told me in the past, but a piece of scotch tape over the keyway on the axle lest any sharp edges cut the lip on the seal.

[wake49 18]

Great advice guys! Thanks everyone! 

[AMC RULES 37,134]

Couldn't hurt to hit the axle with a file first... knock down any sharp edges on the keyway.

[oldlineman 1,482]

U can also use wax paper as a barrier to protect the seal while sliding it over the axle.

[AKincer 6]

For the 1 inch shaft (skf 9815), someone on this forum (can't remember who) suggested using a piece of 1 inch schedule 40 pvc as a seal pusher.  The OD is just slightly too large and you have to file/sand it down to get it to clear.  Once you've done that you can use the pvc to push the seal in until it is seated properly.  I tried it and it worked well.  It allowed me to apply equal pressure all the way around the seal while seating it.  It took a fair bit more force than I expected, but has been in place for about a year and no further leaks.

[wake49 18]

The OD is just slightly too large and you have to file/sand it down to get it to clear.  Once you've done that you can use the pvc to push the seal in until it is seated properly.  I tried it and it worked well.  It allowed me to apply equal pressure all the way around the seal while seating it.  It took a fair bit more force than I expected, but has been in place for about a year and no further leaks.

 

The OD of the seals? Or the axle and I have to file the PVC?

[AKincer 6]

Sorry for the confusion.  The OD of the PVC is just slightly too large to slid into the groove and you need the PVC to go into the groove where the seal seats in order for it to seat completely.  So, you just file the outside of the PVC.  As I recall, you only need to take about .005 off the OD of the PVC, but you have to do it all the way around the outside diameter.  It seems like it took less than 5 minutes.  You can can check that it is small enough by sliding the PVC onto the shaft without a seal.  You will then be able to see if it slips into the groove where the seal seats.

 

Hope that's more clear - unfortunately, I didn't take any pics.

[AKincer 6]

Specs on the SKF9815 are:

 

ID=1.000

OD= 1.250

 

Sched 40 PVC

OD= 1.315

 

1.315 - 1.250 = .065 (more than I thought)

but you will only need to sand down half that amount (.032) all the way around in order to achieve the correct outside diameter.

 

 

It really isn't difficult (I did it!)  Just sand the OD of the PVC until it will slide in the groove where the seal seats.  Then use the PVC to push the seal on.

 

This doesn't eliminate the need to do as previous posters suggested in terms of eliminating any burrs on the shaft.

Edited October 8, 2014 by AKincer

[wake49 18]

I will use all the tips I got here. Thanks again everyone!