Layshaft seal leaking

[lilmonster]

08 S2R1000. Oil is leaking from layshaft seal. It looks like you have to split the engine case to change this seal because it is pressed in from inside the engine. Is it possible to change this seal without splitting the case?  i removed the pulley, the oil looks like is coming from the outside diameter of the seal. The seal will turn inside the hole like it is loose fit or should have some glue to hold it in place. Has anyone done it? My warranty just ran out about a month ago. What should I do?

[Speeddog]

08 S2R1000. Oil is leaking from layshaft seal. It looks like you have to split the engine case to change this seal because it is pressed in from inside the engine. Is it possible to change this seal without splitting the case?  i removed the pulley, the oil looks like is coming from the outside diameter of the seal. The seal will turn inside the hole like it is loose fit or should have some glue to hold it in place. Has anyone done it? My warranty just ran out about a month ago. What should I do?

I've seen that on a couple bikes, the seal gets hard and shrinks from the heat.

It can be replaced from the outside.

Someone had a little how-to post about a month ago here...

[lilmonster]

I have seen a how to for this seal but it was on a 900. That seal is staked in place on the bottom. Is there a lip in the case that holds the seal in?

[Speeddog]

I've never seen one staked in.

There is no lip to retain the seal.
It's all in the press fit.

[lilmonster]

I'll get a seal and new nut and give it a try. Thanks

[Porsche Monkey]

Very carefully using a drill, drill a small hole in the seal. Screw a sheetmetal screw into the hole just a few threads and pull the seal out. Clean up any shavings.

[lilmonster]

Yeah that's what Jordon at AMS said he does. Must be the best way to do it.

[Duck-Stew]

I've used a hook pick to dig in on the really worn seals to grab them for removal.  Drill works on the seals that are more tight but still leaking.

I also clean the engine case and use some grey silicone over the mating surface between the seal and the engine case to help hold it in place and be sure to use a little engine oil on the lip of the seal when doing the install.  That will help it on the initial start-up so it's not spinning at a high RPM while dry.

BTW, removing that little snap ring behind the V belt drive pulley is a beyotch...  That is all.  Good luck!