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Old 07-11-2010, 09:49 PM
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Rusted Wheel Rim Flange

I have a steel wheel from a 1999 ford crown victoria.

It looks good from the outside





But it had lots of rust hidden around the rim flange where the tire bead usually seats







As an expirement, i cleaned the rust off with some naval jelly and a wire wheel





The rust is gone now, but the underlying metal is really pitted in places







Do you think i'll ever get a tire to hold air if it's installed onto this rim?

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Old 07-11-2010, 09:57 PM
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also, i had heard about hydrogen embrittlement by soaking parts in phosphoric acid. would this rim be safe to run on an actual car if i could get it to hold air?
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Old 07-11-2010, 11:28 PM
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The rim could be used from a H embrittlement standpoint, but to use it as-is would be an invitation for a slow leak. There are tire sealant (black, tar-like) products that the shops use occasionally, but I'd much rather see you w/a good wheel from the start, instead of settling for this tired player.
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Old 07-12-2010, 02:02 AM
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My trailer wheels are rusted like that. The tire shops take a wire wheel on an air drill and clean it up and put on the new tire. Works just fine, i never have to air them up. I dont even use new tires on it to be honest, its just new to the trailer. I have troubles keeping tires on it. I pick up nails in the sidewall or something, so no need to get new tires. Thats how I know so well what the tire shop does to my wheels. lol.
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Old 07-12-2010, 06:12 AM
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Put a tube in it or get a new rim.

Jim
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Old 07-12-2010, 03:07 PM
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Paint the rim and get some bead sealer and be done with it.
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Old 07-12-2010, 09:10 PM
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Brush on some epoxy primer and the tire bead should seat just fine.
I once did the same thing with a set of alloy Jeep wheels,
and they held air without leaking.
Wheels tend to rust along the rim because of the tire mounting
solution tire shops use when mounting new tires. Because of this,
I use a silicone tire dressing for tire mounting. It's just as slippery
without the water content of mounting liquid.
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Old 07-14-2010, 07:32 PM
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that wheel also sat unused in a junkyard with a tire installed for a couple years. the tire shop people are telling me that they see corrosion like this mostly on cars that are not driven much. the centrifugal force of the wheel spinning dries out the rim flange area some.
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Old 07-14-2010, 08:03 PM
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just to be sure it doesn't leak, I would mount it on your rear axle, jack up that end, and let the car idle with it off the ground. Have someone behind the steering wheel for safety. With a 4 1/2" angle grinder and #36 grit sandpaper, I would grind down the pits as the wheel spins. Switch to #80 grit, and then paint with a good primer, and you should be good to go.

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