Rotax Gearbox oil seal

[Rudix]

Hi Everyone,

I seem to have a leaking oil seal on a "C" Rotax gearbox. It is the seal that sits on the crankshaft input side of the gearbox. The gearbox is mounted with the prop shaft at the top so this seal is at the bottom.

Is it a major operation to change it ? Do I need to remove the gearbox or can I just split it on the engine and replace the seal like that ?

Thanks for any information :D

Fly safe,
Rudi

[speedy]

Have you fix the oil leak.I got a c-box and it looks like the big gear is sliping on the shaft.Was wondering if i could fix it myself or should i send it away.

[Duck Rogers]

Have you fix the oil leak.I got a c-box and it looks like the big gear is sliping on the shaft.Was wondering if i could fix it myself or should i send it away.

Unless you're mechanically minded, fix it yourself. No big deal. Otherwise send it wherever you send stuff to
You'll need a moerse big bobbejaanspanner and a pipe for leverage, oh, and some Locktite Retaining Grade and a special jig to hold the propshaft flange
By the way, it's a LEFTHAND threaded nut :D