H100S2 Swingarm Bearings

cb1rocket · World Chat Champion Joined: 30 Jan 2010 Karma :

Has anyone got any tips on removing the H100S2 swingarm bushes/bearings? The outer wall of where the swingarm bushes are very thin, not allowing much use of a vice press etc!

I want to get the bearings replaced before sending off to the powdercoaters. Also do I leave the bearing in for powdercoating?

Cheers

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Vincent · Banned Joined: 16 Oct 2006 Karma :

You could try a good soak with Plusgas. Then I'd suggest placing the outside edge of the swingarm pivot onto a socket big enough to let the bush through and try and drift the bush with a punch and big hammer. I'd leave them in there for the powdercoating though.
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bikenut · World Chat Champion Joined: 21 Nov 2011 Karma :

:karma: hi dude,

these are rubberised bushes??

thin metal outer wall bonded to rubber bonded to inner sleeve which the swing arm bolt goes through??

stuff which can be damaged by heat should be removed before powder coating, as coating cured by heat??

if you have new bushes, then burn the old ones out to leave the thin walled outer in the swing arm.

carefully cut slit in the wall of the outer "tube" ( of the bush NOT the swing arm ) and remove.

press new bushes in place after making right sized press tools and vice ( or draw threaded bar ).

some pics would be good.

Robby · Dirty Old Man Joined: 16 May 2002 Karma :

Use a selection of sockets and a vice, or some long threaded bar and some sockets.

If they're difficult to remove, I would pull them out before powdercoating. You don't want to bash the swingarm around after powdercoating it.

You should clean up any threads and bearing surfaces after powdercoating anyway. Partly because there is a possibility of getting some powdercoat into the wrong places, but mainly because anything old and tired enough to need powdercoating probably has some rust and crap built up on threads and bearing surfaces.

Also consider if you're going to reassemble with standard bushes or something different. My 250RS uses crap plastic bushes as standard, so I replace them with either needle rollers or brass bushes, with a grease nipple fitted to keep them moving.

Vincent · Banned Joined: 16 Oct 2006 Karma :

You should be able to rig up a puller using the swingarm pivot bolt. If you're not sure what, I mean, I can go into detail.
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cb1rocket · World Chat Champion Joined: 30 Jan 2010 Karma :

cb1rocket · World Chat Champion Joined: 30 Jan 2010 Karma :

As requested pictures attached

In one of the photos, the inner sleeve of the bush is still stuck on the spindle while the rest is still in the swingarm!!!

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And the bloody hard effort of 2 hours to remove the bastard!

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cb1rocket · World Chat Champion Joined: 30 Jan 2010 Karma :

more progress after 3 hrs of swearing hitting the bushes with a cold chisel and puller

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crap! Threads stripped doing the 2nd one!

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cb1rocket · World Chat Champion Joined: 30 Jan 2010 Karma :

well I finally got the other one out! Despite buying a new M12 studding and nuts it still wouldn't budge so I had to chisel all the way at both ends - and that was bloody hard work. Me thinks I'll invest in a hydraulic press next.....

Really need to start the show and tell me thinks, and thanks for all your help Karma

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