CHANGING THE OIL SEAL ON THE FINAL OUTPUT DRIVE

[balibeemer]

HELP!  Oil is leaking from the final output drive - all over the rear brake shoes. I have checked the Haynes manual unsuccessfully - Are there any tricks to changing out the oil seal?

[montmil]

HELP!  Oil is leaking from the final output drive - all over the rear brake shoes. I have checked the Haynes manual unsuccessfully - Are there any tricks to changing out the oil seal?

Even though it's a big ol' diameter seal, same precautions as any others. I used a small wood block and a tack hammer to GENTLY drift the seal home in a circular pattern of tap...tap...tap. My local bearing supply vendor had to special order the seal at about $18.00USD plus another $10.00USD shipping.

Watch out for the drive splines. Don't want to nick the seal's lip. Also, do the spline lube chore while you're in there.

Monte

[willr65]

Are you 100% sure it's the big seal??   It could and may be the "O" rings sealing the brake operating arm leaking. Much easier to fix!

[Justin B.]

Second the motion made by Will...

[balibeemer]

I never thought of that! - And how do I replace the 0 ring seals for the brake operating arm?

[donbmw]

Remove brake shoes then removed brake arm and push brake shaft out of final drive.

Don

[willr65]

Brake operating arm showing three "O" rings. You need to remove the splined arm off the shaft and also the brake shoes. The shaft should just pull out with a little persuasion.

[montmil]

...and us folk here in the Colonies usually score O-rings at the local hardware store. Cheap.

Monte

[nhmaf]

While it is most likely a rubber seal, I had a slight oil leak in my final drive that turned out to be  a bad/loose cover bolt and washer.    Cleaned up the area where the bolt & washer contact the inside cover of the final drive and replaced bolt and washer -> no more leak.   I don't know why it started to leak there, but it did, and has been tight ever since..