To remove hub studs before Powder...or not??

[jbeebe]

I'd like your opinions, please. The wheel I'm using is from an 84 Virago and is shaft driven. As you can see in the pic, the studs that bolt the wheel's drive hub on are pressed in to the wheel and contain rubber. Ideally, of course, I would press them out before dropping it off at the powder coater. But I know i'm going to damage at least one coming out though...because it's me. And there are no new/NOS replacements for them.

Do I just leave them in? Sure, the rubber might leech a bit, but as you can see it will only leech onto surfaces that aren't being coated anyway. Sure, the rubber might stiffen up, but it's not a joint so I'm not sure it'll matter.

Opinions?

 

[pidjones]

I'd pass on the powder coat and just paint them with a good 2K.

 

[Tim]

Powdercoaters can mask areas - be it studs or threaded bosses etc. They use silicone 'corks' to keep material out of things like swingarm pivot holes etc. and can tape off threaded studs like this.

You can also put nuts on those studs and back them off after.

The bigger issue is all that rubber - it won't likely survive the heat of the oven. All those bushings / o-rings, bearings etc. would need to come out, which would likely also involve the studs coming out. That looks like a cush-drive mechanism to insulate the wheel from the violent impacts imparted on it by the chain.

 

[jbeebe]

Powdercoaters can mask areas - be it studs or threaded bosses etc. They use silicone 'corks' to keep material out of things like swingarm pivot holes etc. and can tape off threaded studs like this.

You can also put nuts on those studs and back them off after.

The bigger issue is all that rubber - it won't likely survive the heat of the oven. All those bushings / o-rings, bearings etc. would need to come out, which would likely also involve the studs coming out. That looks like a cush-drive mechanism to insulate the wheel from the violent impacts imparted on it by the chain.

Thanks for the thorough comment. Certainly, the wheel bearings and o-rings and everything else will be stripped before dropping off at the powder coaters. It's shaft drive, and the splind hub is what attaches to the studs in the image.

My only concern is the rubber bushing that the studs are in, Will it survive enough for use? I'm not sure ...

 

[jbeebe]

I'd pass on the powder coat and just paint them with a good 2K.

Definitely an option!

 

[jbeebe]

Alllllright I decided to nut up or shut up and just press them out already. The only thing I was super certain of was to find a socket that perfectly fit because the metal sleeve is pretty thin-walled. They pressed out and cleaned up with a brass wire wheel pretty nicely.

I'll throw them in the chest freezer before reinstallation and it shouldn't be a problem.

 

[Streetfighterkz]

Just a suggestion: take or leave it…maybe put some red lock-tight on them before inserting them? Unless you feel like there’s a good enough press fit going back into the hub.

Later, Doug

 

[jbeebe]

Just a suggestion: take or leave it…maybe put some red lock-tight on them before inserting them? Unless you feel like there’s a good enough press fit going back into the hub.

Later, Doug

sure wouldn't hurt, good idea!

 

[ex119x]

I think green would be a more appropriate choice over red.

 

[Tim]

I think those bushings are trapped once the wheel is assembled to be honest - not sure what loctite would do aside from make it more difficult to press out in the future.

 

[beachcomber]

Good move,

I've done dozens of complete wheel powder coating. My first error was to mask off but leave the bearings in situ ............. rookie error. What little grease was left in place after I "cleaned" them leeched out over the hub !!!!!!

Now I remove everything and blank off any large openings [ eg brake drums ] with ply , and yes - any renmaining threads you can't remove just fit sacrificial nuts / screws. As a bonus [ for my project ] I liked the "finish" on the sacrificial button head allen screws so much - I'm going to use them to retain the sprocket !!!!