Primary drive cush drive rubbers. Direction?

[Steve G.]

  Yes, my clutch saga continues. i've just got all new clutchpack, primary chains, cush rubbers, gaskets, pushrods, most everything. So I popped the cush rubbers out without verifying the direction of the thicker part of the cush rubbers. Of course I'm not sure if this late 180 engine spins clockwise or anticlockwise when looking at the clutch side, I guess that might explain where the rubbers go.
I also notice that the new cush rubbers have two cutouts, where my old ones had just one cutout. Not sure if these are updated ones found on 120 engines???

Thanks for the help again guys!!
  Steve

 

[Dellortoman]

Does this help?

Image courtesy of JLO's "Laverdamania" website. If you want the full descriiption of how to replace the rubbers, it's here http://www.laverdamania.net/fichetech18gb.htm

BTW the crankshaft and clutch spin in the same direction as the bike's wheels. So that's anticlockwise looking from the primary drive side.

Cheers,
Cam

 

[Steve G.]

Does this help?

Image courtesy of JLO's "Laverdamania" website. If you want the full descriiption of how to replace the rubbers, it's here http://www.laverdamania.net/fichetech18gb.htm

BTW the crankshaft and clutch spin in the same direction as the bike's wheels. So that's anticlockwise looking from the primary drive side.

Cheers,
Cam

  Helps HUGE!! thanks a bunch, and also for pointing out the Laverdamania site.

  Steve

 

[sfcpiet]

Steve,

Only one type of rubbers avaialable today... one size fits all.

If you inspect the rubbers closely, you will find the hole has a chamfer on one side.  This is to ease fitting on the clutch drum post.  So, sliding them on with the chamfer first, they fit in one direction only.

piet

 

[Steve G.]

Steve,

Only one type of rubbers avaialable today... one size fits all.

If you inspect the rubbers closely, you will find the hole has a chamfer on one side.  This is to ease fitting on the clutch drum post.  So, sliding them on with the chamfer first, they fit in one direction only.

piet

  I do notice this on my old rubbers, but the new ones do not have any kind of chamfer or mini bevel. Actually slightly disapointed by the rubber quality, there's a roughness to them, bits of rubber chewed off along the edges. Oh well.
  I also notice a bevel or chamfer on the steel gearhub that these rubbers fit within. Not sure of there is a correct inside/outside on this thing. This bike I'm working on did not have the rivets holding things together, it's bolted to the clutch hub from the factory.

  Steve

 

[sfcpiet]

Steve,

Triple sprockets are reversible, 750 twins are directional.  So, doesn't matter where you put the chamfer.

Nobody rivets those things together again, the bolt mod is very common, was used from the introduction of the MKII triples by the factory.  Do check the posts for cracks, if not removed carefully, the rivets can/will split the posts.

piet

 

[Steve G.]

Steve,

Triple sprockets are reversible, 750 twins are directional.  So, doesn't matter where you put the chamfer.

Nobody rivets those things together again, the bolt mod is very common, was used from the introduction of the MKII triples by the factory.  Do check the posts for cracks, if not removed carefully, the rivets can/will split the posts.

piet

  Thanks Piet!!