Has anyone replaced the rear prop shaft seal on C box

[thebriman 69]

The rear prop shaft seal on my c box leaks and is getting worse.  Has anyone ever replaced it?  Its a 25x38x7, number 10 on the rotax diagram and pn 930-675.  Aftermarket seal thats been used is the past would be fine too.

[1avidflyer 1983]

I changed one a few years ago with an aftermarket type for about 1/10 the price of rotax's seal.  No problems with the new one.  Jim Chuk

[wypaul 448]

Just completed replacing the rear prop shaft seal on my 912 and used aftermarket seal with great results. Built a puller using all thread and a few nuts that worked just fine.

[thebriman 69]

good idea for the puller Paul.  Thanks gents 

[allonsye 85]

Has anyone had any luck with seal rejuvenation through some sort of additive. 

Edited 5 May 2015 by allonsye

[1avidflyer 1983]

Never thought to try to rejuvenate the seal.  The new one was $5 or $7 if I remember right.  It was on a 582,  didn't realize you were asking about a 912.   Jim Chuk

[Dusty 126]

Don't waste your time or money on rejuvenator

I tried it on a small weep on my c box also an A box in my drifter.

A worn seal is what it is.

Aftermarket seals are generally ok but be careful as seals don't tolerate bad installation!

[thebriman 69]

I ordered 2 seals from McMaster-Carr.  $6.87 each.  Part number 5154T67.  A lot less than the 25 or so Rotax wants for theirs.