Adding grease zerk for clutch shaft bearings?

tylerlough · Jul 31, 2008

I got gas in the clutch case, which then went in the two "sealed" bearings for the clutch/output shaft.

The gas destroyed the grease in these bearings and I was only able to put oil in them.

If I took the bearings out would I be able to grease them?

My idea is to add a grease zerk to shoot grease in the shaft area which would hopefully force grease into the bearings.

Where should I drill the hole for the grease zerk?

If you thing of something that may work better, please chime in.

Bikeguy Joe · Aug 1, 2008

Actually, that sounds like a good idea with the very small exception that the whole shaft packed with grease may make the bike minutely harder to pedal, engine off.
Look at this-

Norman · Aug 1, 2008

the mount for the clutch cable at the base of the engine can be removed and grease shot into the hole which will pack grease into the shaft cavity and will also force grease out through the bearings the draw back is if you over do it grease will build up behind the clutch and can get into the clutch.
you can press out the mainshaft and repack the bearing and reinstall. I show the process in the total engine tear down post.

Dave31 · Aug 1, 2008

Norms total engine break down......http://motorbicycling.com/f4/bicycle-motor-total-tear-down-389.html

tylerlough · Aug 1, 2008

Great guys,

Norman, your tear down manual was a big help. I didn't know the clutch cable mount went all the way through. That sounds better than the grease zerk idea.

Grease on the clutch is no biggie, 10 minutes and some brake cleaners.

I'm try to avoid pressing out the bearings. I'll post the results.

tylerlough · Aug 2, 2008

Just saw norman's post about greasing through the hole, I guess I had selective reading on that thread.

My grease gun even screws into the hole a little bit.

Thanks again

Bikeguy Joe · Aug 2, 2008

I shot a bunch of chain lube down that hole and the clutch started slipping....I cleaned the pads with brake cleaner and now all is well.

577-Jersey · May 12, 2013

Norman said:
the mount for the clutch cable at the base of the engine can be removed and grease shot into the hole which will pack grease into the shaft cavity and will also force grease out through the bearings the draw back is if you over do it grease will build up behind the clutch and can get into the clutch.
you can press out the mainshaft and repack the bearing and reinstall. I show the process in the total engine tear down post.

So how many pumps you think would be good before its over done 10 or so??
Just asking cause i don't want to take the covers and clutch apart to see when the grease is coming out

Good Times ....

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Adding grease zerk for clutch shaft bearings?

tylerlough

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Bikeguy Joe

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