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Old 09-04-2014, 02:54 PM   #1
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This does not make me happy

After having both inner tires fail on my RV in August, I replaced all the rear tires with Michelins. Unfortunately the installer installed short, stiff rubber valve stems. They proved nearly impossible to add air to. So, after considerable research, I bought a crossfire system which arrived today. Imagine my dismay when, upon reading the instruction sheet, I came across this:

(DO NOT USE WITH RUBBER VALVE STEMS OR VALVE STEM EXTENDERS)

I again looked at the Amazon description, reread the postings here and looked at some other websites selling this product. Nowhere can I find anything about crossfire being incompatible with rubber valve stems. So, is anyone using crossfire with rubber valve stems? Do I have to pull all the wheels off, take them back and get steel stems installed? Is it really that important?
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Old 09-04-2014, 02:58 PM   #2
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rear duels with rubber stems, O me O my
Me I'd take it back to the installer, and have the proper steel stems installed.
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Old 09-04-2014, 03:02 PM   #3
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Yeah I think I agree with that. You should have the proper metal valve stems.
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Old 09-04-2014, 03:12 PM   #4
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The reason is if the crossfire system were to come loose ,it would rip the rubber stems out due to the centrifugal force of the rotating tire and wheel assembly , some rubber stems are "high pressure" rated, so maybe adequate for the pressure but not for resistance to being pulled out.
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Old 09-04-2014, 03:29 PM   #5
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The tire dealer had no business installing rubber in the first place and at the very least should have asked the customer !
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Old 09-04-2014, 03:39 PM   #6
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I also agree with the metal valve stems. They can be turned any way that is convenient for you.
I would not have a motorhome without them and also have Crossfires on mine. I really like them.
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Old 09-04-2014, 03:50 PM   #7
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Are you posting this thread from the tire dealership, or, are you now in route? Let us know what happens.
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Old 09-04-2014, 03:51 PM   #8
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Sounds like you got an incompetent installer! I would take them back and insist that they put the correct ones in at no charge!
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Old 09-04-2014, 04:30 PM   #9
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It's not an incompetent installer. They installed the rear tires the same way they changed the front tires. They (Navy Exchange Service Station at NAS Jacksonville FL) do not work on RVs. I removed the wheels myself and took them in. I had no knowledge of a crossfire system at that time. Even if I did know about crossfire I would not have known about the requirement for metal valve stems until after I received the system as I stated in my original posting.

So I guess it's back to removing the rear wheels, taking them back in and finding out how much they want to install metal valve stems. Personally speaking, I think it would a good idea for the crossfire manufacturer as well as their retailers plus those who post in RV forums about how great the crossfire system is to mention that metal valve stems are necessary. Thanks everyone for their prompt responses.
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Old 09-04-2014, 04:42 PM   #10
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I myself take my coach to a CERTIFIED/QUALIFIED truck tire shop.
You get what you pay for.
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Old 09-04-2014, 04:49 PM   #11
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How did you intend to air up the inside dual tire with a rubber valve stem?
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Old 09-04-2014, 04:52 PM   #12
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I could be wrong but according to the lead guy (45 years of experience) at a Goodyear store where I bought several sets of TT tires any tire over 65 LBS is supposed to have metal stems. Therefore if you are running RV tires pressures of 80, 90, 100 or more the case is closed!!! They never, never should have installed rubber stems.

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Old 09-04-2014, 06:19 PM   #13
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Quote:
Originally Posted by KIX View Post
How did you intend to air up the inside dual tire with a rubber valve stem?
I didn't have much trouble airing up the old tires. They had more flexible stems that were a bit longer. These are shorter and very stiff. I had enough "give" in the old stems that I could get the air hose on them without a great deal of effort. These stems are nearly impossible to air up.
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Old 09-04-2014, 06:21 PM   #14
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Quote:
Originally Posted by TeJay View Post
I could be wrong but according to the lead guy (45 years of experience) at a Goodyear store where I bought several sets of TT tires any tire over 65 LBS is supposed to have metal stems. Therefore if you are running RV tires pressures of 80, 90, 100 or more the case is closed!!! They never, never should have installed rubber stems.

TeJay
That's good info to have. They didn't know how much air I was putting in them. As I said earlier, they don't work on RVs.
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