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Old Feb 26, 2005 | 02:04 PM
  #1  
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Unhappy keep on losing air

My wife's Jimmy continually losing tire pressure on the average of 15psi a week
per tire. the tires are about three years old with a fair amount rubber on them, mounted on stock aluminum rims the valve stems are tight no leeks. What can I do to stop the loss? I've wanted to use tire slime but i think the alum. is the problem.

Marc
 
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Old Feb 26, 2005 | 04:24 PM
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If you live in a cold climate that sees snow, and your town uses any sort of road salt , then it will corrode the lip of the aluminum wheels.
I just tore mine down for the same reason, and couldn't believe how it works it's way between the bead of the tire and the wheel.
 
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Old Feb 26, 2005 | 06:24 PM
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I figured as much, here in NJ were throwing salt on everything. So what did you do to your rims to solve the problem?
 
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Old Feb 27, 2005 | 08:17 AM
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I broke down the tires, and just wire brushed the lip of the wheel...so far so good.
 
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Old Feb 27, 2005 | 09:14 AM
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Originally Posted by msurie
I figured as much, here in NJ were throwing salt on everything. So what did you do to your rims to solve the problem?
Install inner tubes?
 
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Old Feb 27, 2005 | 02:31 PM
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You have to remove the tires from the beads and polish the beads up, which will hopefully help the tires to seal. FWIW: A good tire man can probably reseat them, no problems.
 
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Old Feb 27, 2005 | 03:06 PM
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This sounds really stupid, but my Crown Vic was doing the same thing. It turned out to be the valve stem cap. The rubber gasket on the inside was missing. (I was loosing about 15-20lbs a week). It's been two weeks now and no noticeable loss.

ps. the weather has been fluctuating from -10 to 35 degrees F
 
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Old Feb 27, 2005 | 03:59 PM
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tsc -

If you need to have valve stem caps on to keep the tires from going flat, you've got leaking Schraeder valves. The caps are to keep dirt/water out, not air in.

Steve
 

Last edited by Steina; Feb 27, 2005 at 04:01 PM.
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Old Feb 28, 2005 | 05:26 AM
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Funny thing only one tire was missing a cap for about a week, it held pressure better than the other three I've checked the valves all tight it seems the beads are the problem.
 
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Old Feb 28, 2005 | 05:56 AM
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Yes, if you have a tire machine, I'd take the tires off the rim, and clean them with a wire wheel.
 
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