Loose hub, cause?

[clandr1]

Hey guys & gals,

I have a loose hub that's been rattling as I run over road titties and little bumps. Here's a video of me shaking it a little (the hub you sickos!).

Any ideas what could be wrong? I've already checked the allen screws and they are all tight.


http://www.youtube.com/watch?v=7m0t9_AmWdE

 

[YZEATER]

there should be an o-ring that goes onto the locking hub that seals it to the hub.

 

[dremu]

Does the wheel shake, or just the hub?

I'm thinking the hub nut is loose, but it could just be the hub is loose on the spindle.

There's an outer metal snap ring (not a rubber O-ring) that should hold it in.

-- A

 

[clandr1]

Does the wheel shake, or just the hub?

I'm thinking the hub nut is loose, but it could just be the hub is loose on the spindle.

There's an outer metal snap ring (not a rubber O-ring) that should hold it in.

-- A

Just the hub -- the wheel is good. I'll open it up today and see what I can find out. If the hub nut is loose, should I remove the snap ring, tighten the nut, then insert the snap ring?

 

[YZEATER]

if the hub nut was loose, the wheel would be loose.

there is a big snap ring that hold the inner part of the hub on, then the outside hub part bolts on. there is supposed to be an oring on the outside locking hub part.

 

[clandr1]

if the hub nut was loose, the wheel would be loose.

there is a big snap ring that hold the inner part of the hub on, then the outside hub part bolts on. there is supposed to be an oring on the outside locking hub part.

That must be the problem -- I just took it apart and could see an empty recess on the locking hub that looks perfect for an o-ring.

Do you have a NAPA part number for the o-ring? Tried searching their site and came up with nada.

 

[YZEATER]

just take the hub with you to the parts store and try to match one up.

 

[clandr1]

Well turns out it was missing the o-ring. Thankfully I'm in good w/ the guys at NAPA because they didn't have an o-ring big enough, so they grabbed one out of a set of warn hubs in stock and hooked me up. Thanks for the help.

 

[Fordum]

I had a similar situation. That O ring does not have to seal against a lot of pressure like one in a hydraulic cylinder or something like that.

I took a new tube of black silicone rubber, cut the smallest hole open in that long tip, and carefully filled the grove up and above making a "tall" thin bead with the cap sitting flat, dial down.
Then, I greased the part on the truck it would touch, just in case, and let the bead harden almost all the way.
Put the hub on the truck, tightened the screws just until it was bulging slightly all the way around.
This smoothed off the top and made it conform to the part on the truck.

Then, after hardening overnight, I tightened it the rest of the way and trimmed off the excess on the outside with a sharp knife.

Made a perfect O ring.

The trick was to keep it thin, so there was not enough excess to bulge much and it did not protrude in the hub and cause trouble.