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Discussion Starter #1
hey guys i took the time to sand blast my rear hub to
get it powdercoated and needed to get the cush bushings out
and took it to garvis honda to have them take them out.
they tied they killed the hub my time and money.
so i need to know who and can get the bushings out without
killing the hub and the looks of the hub.
 

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Eric,
Is the hub trashed?
Were the bushings bad? I don't come across many where the bushings are bad enough to need replacing.
Do you have replacement bushings?

I've seen more than one hub with the bushing bores in the hub broken, looks like from dropping the clutch for wheelies.

If I had some that were really stuck I'd try soaking them in penetration oil for a while...then maybe taking a self tapping screw and threading it into the center of the bushing...then grab that with something and try to pull them out. If you have a slide hammer and a welder you could probably rig up something with that to use the slide hammer on the self tapping screw.

That's all I got :)
JohnnyB
 

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Frank,
It's got four rubber/steel bushings....steel outer casing bonded to a rubber core and a steel inner sleeve....typical of a Honda lower shock mount bushing. Surrounded by an aluminum bore which around the outer edges is rather thin.

I thought of TIG welding something to the inner steel sleeve and trying to just pry them out...but I think the rubber would fire up so fast that it would be impossible to get a good weld on it.

It's possible if a person was really stuck they might drill through the back side of the hub and knock them out that way....I'd have to have a hub in my hand at the moment to tell if that was feasible.
JohnnyB
 

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Well I can see how they could be extremely difficult to remove if the outer steel casing was corroded in place. But not how they could have damaged the hub itself. Bushings yes...hub no.
JohnnyB
 

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Discussion Starter #7
they took a punch and a hammer to it and slipped a few times.
and then they tried to use a c clamp and split punch and they
slipped on the in side of the hub and craked the webbing around
the cush drive. need to find a new read hub from cb350.


thanks eric
 

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Id say besides the trouble you have gone thru ..that all aside I wouldnt powder coat aluminum brake parts as the aluminum should not be sealed like that it looses one of its better properties which is Heat Disipation .I thick a coat of powder coat will make the brakes heat up alot faster then normal...even polishing does it to a a much smaller digree. But thats just me I always have smirked at the VW crowd that powder coat thier air cooled high performance motors they are sealing in so much heat. Do what you want just wanted to mention the heat up factor.
 

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Discussion Starter #10
thats cool i never thought of that point. but the back brake almost
never gets used rigth? i almost never use that thing on my street bike. what about the track only bike like the the cb im putting
back together?


thanks eric
 

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Eric,
On a race bike I typically only use the rear brake after the race coming into the pits cause the race compound fronts get real touchy.

But...I still wouldn't powdercoat the hub (And I even have powdercoating gear right in my shop). It's a mechanical device that really doesn't need it. Plus....you don't want it on the inside the drum, the bearing bores, the spoke holes, the sprocket mount flange or damper bores...that leaves a lot of stuff to mask. Plus it's a real...real pain in the ass to remove if you have to for some reason. Did you plan on doing in a color or clear? If clear then just polish it up and leave it.... keep it reasonably clean and it will shine for years without powder.
JohnnyB
 
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