smoll1 wrote:Hi all,

I have a question hopefully someone might experienced.

I had to clean sprag clutch as stoped working was gunked up. Works fine now.

While I was in there I put new bearing and seal in bell housing. I used a normal 6004 c3 skf bearing. 

Put all back together and started sounded nice quite compared to old bearing. Ran it up road and after about 1/4 mile start making noise in bell housing area, so turned around and then few yards further the bike seized.

Luckily I have had loads two strokes years ago and still ride as habit with hand over clutch. I was on few yards from.home.

Took all.apart again and the bellhouse/alternator bearing has seized solid. Seems be no oil in the area as well.

This has baffles me and not sure if bearing faulty or I did something wrong.

Anyone have any ideas. How does this bearing normally get lubricated.

Plenty oil in bike as just put it in.

I have ordered a new bearing etc but don't want same thing to happen again.

The bearing is blue with the heat. I did not put any extra oil when I put in in. Should I have done this?

Any assistance I would be grateful.

Hopefully then I can get back on road in nice weather

88 wrote:

While I was in there I put new bearing and seal in bell housing. I used a normal 6004 c3 skf bearing. 

P

gorio wrote:do you know the BMW part number off hand?

gorio wrote:All the bits and pieces in there in the right order? Looks like the right bearing. Just passing along ideas.

smoll1 wrote:The bearing number I had was 6004

smoll1 wrote:The thrust washer on end  of sprag clutch assembly had actually got so hot it melted to end of sprag clutch shaft and then snapped off.