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Old 03-23-2019, 06:48 PM   #1
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Brand: Thor Motor Coach
Model: Chateau 31W
State: Minnesota
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THOR #14057
Valve stem dilemma

Finally warming up in MN to be outside in the sun. I decided to check tire pressures. Started at driver side rear and could only get to the inside tire stem. I can see where the outside tire stem would be. Took the wheel cover off and noticed the outside stem is pointing to the inside instead of the outside. Can I just turn it the way it should be pointed or to I need to take it it? Mind you we drove it home a month ago and parked it. I obviously need to get this corrected. I took a picture.

Thanks
JJ
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Old 03-23-2019, 07:33 PM   #2
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Yes, just turn it facing out
Suggest you remove it, lubricate it, then re-fasten at the angle you desire

I recently ordered a set off of Amazon so now all 6 valve stems have ez access without removing the rims
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Old 03-23-2019, 07:35 PM   #3
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THOR #2812
Turn the valve stem extension around and tighten the base. The normal valve stem still has a valve inside to prevent leaking. The extension depresses that valve when tightened. IT can leak when the extension is loose.
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Old 03-23-2019, 07:59 PM   #4
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Fixed!

Got it all fixed up. Glad that worked out easy.

Thanks
JJ
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Old 03-23-2019, 08:49 PM   #5
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THOR #6826
At your next tire change give some thought to having “dually valves” installed. The outside stem is the shape you want/have but it’s all built into a single metal valve. I.e. you won’t need an extension that has to press the valve on a regular stem and can’t work loose or turn around. One fewer failure point. The inner stem is simply a very long stem (like 8 inches) and protrudes from the outer wheel or cover for convenient access. It also makes using a TPMS system much easier. I’ve had them installed on my last three coaches and consider them well worth the cost.
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Old 07-17-2022, 08:38 PM   #6
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could you send a picture of this valve? I still have a 1 lb per week leak. i have purchased 2 of these 9" extenders with the tight elbow on it, I think the leak is in the elbow itself. Do you think just a 13" flex line would work better?

I have removed the extender, filled tire and will let it sit for a week,. If the tire is holding pressure, its that extender itself.
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Old 07-17-2022, 10:28 PM   #7
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THOR #24565
Something like the ones in the link below may work for your inside dually wheel. A good tire shop should have or can get many different valve stems that are shaped correctly and long enough to reach through to the outside wheel. If you can avoid a screw on extension you will be better off.
https://www.dillvalves.com/product_c...tire-valves-2/
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Old 07-19-2022, 10:50 PM   #8
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I have it installed, lets see if this holds pressure. This will be my third extender installed. I am Summit's best customer.
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Old 07-21-2022, 12:13 AM   #9
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I installed the new extender. This time a straight flex hose. I installed and coiled and ran to the valve extender bracket. This seems to work better than the production extender. Holding steady at 82 psi
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Old 07-21-2022, 01:17 AM   #10
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THOR #16721
Don't want to turn this into a physics discussion... but does the inertial force of the hardware attached to the wheel cause a perceptible imbalance? Can you feel that while driving?

I believe large semi trucks use systems like this, but maybe the mass difference in the larger wheel counteracts the imbalance? I've considered installing the hose type extensions, but I'm on the fence... caused by comments from people who constantly fight pressure leaks.
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Old 07-21-2022, 02:56 AM   #11
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THOR #11607
I've had Crossfire system installed for over 2 years and absolutely love them. No balance or leak issues at all.

I have TST TPMS installed as well. Crossfire system still let's you monitor each tire individually. Click image for larger version

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Old 07-21-2022, 09:21 PM   #12
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THOR #22342
On mine, the RHS outbd tire was the only tire pressure issue. Changing the style extender to a straight hose has fixed the slow leak problem.

I would think the weight of the new hose vs the production extender are the same. I haven't felt any vibration back there at all while driving.

I will probably go back to installing TPMS sensors, but that can wait a while. I bought the cheap ones last yr and got a cheap result, all the switches and buttons on the unit were broke in a week.
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Old 08-14-2022, 05:28 PM   #13
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So, I had the problem fixed or what i thought was fixed. Over time the valve extender just leaks....It may be a low as 1/4 psi per day. All tires showing over 80 psi, yep the RHS outbd.....74 psi,

i will just remove the extender on that tire and install the TPMS sensor directly to valve stem and behind the hub cap.
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