catdieselpower750
New member
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- Geneva New York
Hello
I’m upgrading from 14.00R20 tires to 16.00R20’s on my M923A1 truck. I bought HEMTT wheels for the fronts which came with new valves stems which now I have completed and pressured up to 100 psi.
Now I’m doing the spare from the truck before starting to remove each tire from the truck. The rest will be M939 combat wheels. When I pulled the spare down it had no air in it. When I broke the tire and wheel down I found they didn’t use an o-ring, they just plastered the face by the edge where the bolts are on the combat wheel with RTV or equivalent. I’m assuming that’s the leak point.
I wanted to make sure the valve stem was tight too. It was slightly loose where I was able to get 1/2-3/4 of a turn on the valve stem bolt. My question is should I replace the o-ring in the valve stem or is it ok now that I have disturbed it by tightening it up?
Of course I’d rather not stop and wait to get the parts so I can keep going but also don’t want to have to tear all these tires back down to replace a $8 o ring in the stem. Thanks for the advice
I’m upgrading from 14.00R20 tires to 16.00R20’s on my M923A1 truck. I bought HEMTT wheels for the fronts which came with new valves stems which now I have completed and pressured up to 100 psi.
Now I’m doing the spare from the truck before starting to remove each tire from the truck. The rest will be M939 combat wheels. When I pulled the spare down it had no air in it. When I broke the tire and wheel down I found they didn’t use an o-ring, they just plastered the face by the edge where the bolts are on the combat wheel with RTV or equivalent. I’m assuming that’s the leak point.
I wanted to make sure the valve stem was tight too. It was slightly loose where I was able to get 1/2-3/4 of a turn on the valve stem bolt. My question is should I replace the o-ring in the valve stem or is it ok now that I have disturbed it by tightening it up?
Of course I’d rather not stop and wait to get the parts so I can keep going but also don’t want to have to tear all these tires back down to replace a $8 o ring in the stem. Thanks for the advice
