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  1. #11
    Seasoned Camper
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    Quote Originally Posted by Calbar View Post
    Thanks for the heads up. I just had metal stems put on when I bought new tires. One more thing to add to the list of things to check each trip or several times during the trip.

    Anyone know what the torque spec is or the thread size so I can get 4 nuts and lock them?

    Rob
    From tirereview.com "aluminum wheel valve stems present definite problems when they are improperly torqued. If the valve stem is loose, the assembly leaks. If it is too tight, corrosion will begin to form around the valve stem and a leak will soon follow. The recommended torque for standard aluminum wheel valve stems is 7 to 11 ft/lbs or 80 to 125 in/lbs."

  2. #12
    Big Traveler Calbar's Avatar
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    Quote Originally Posted by Nogrey View Post
    From tirereview.com "aluminum wheel valve stems present definite problems when they are improperly torqued. If the valve stem is loose, the assembly leaks. If it is too tight, corrosion will begin to form around the valve stem and a leak will soon follow. The recommended torque for standard aluminum wheel valve stems is 7 to 11 ft/lbs or 80 to 125 in/lbs."
    Thanks for the info. I will need to check mine now that I have a range.

    Rob
    Rob & Barb
    2022 Solitude 378MBS
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  3. #13
    Seasoned Camper more tired since retired's Avatar
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    Any ideas about using something like Loctite Blue to lock the nuts in place. Blue is removable. I use it for things like the screws on the ear bows on glasses and nuts that see a lot of vibration.
    2020 F-250 XLT SuperCrew 7.3L Blue Ox SwayPro, 2020 Imagine 2600RB,
    1600W Solar w/525AH LiFePO4, Victron 3000W, Road Armor w/wet bolt suspension, VisionWork Camera System, Peplink MAX BR1 Pro 5G Mobile Router,MicroAir EasyStart
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  4. #14
    Long Hauler
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    You could, but it really shouldn't be necessary. There's no real forces trying to rotate the nut, and if they keep coming loose after torquing to proper setting, it might be time to check for issues
    with the nut seating area.
    Howard and Peggy
    2019 Momentum 351M, and 2018 RAM Cummins dually 6-speed.
    His: 1999 Honda Interceptor
    Hers: 2013 Spyder ST-S

  5. #15
    Seasoned Camper
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    Quote Originally Posted by more tired since retired View Post
    Any ideas about using something like Loctite Blue to lock the nuts in place. Blue is removable. I use it for things like the screws on the ear bows on glasses and nuts that see a lot of vibration.
    I worked on diagnostic imaging systems for 35 years. I have been trained in the use of all types of anaerobic media and their application. . In the case of these valve stems and the massive amount of vibration they receive, loctite 242 is certainly appropriate and is what I will apply before my next trip.

  6. #16
    Seasoned Camper
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    Thanks for the info....sure enough 3 of my 6 were not tightened correctly!

    Mark
    2014 HDT Volvo 780 "Baby Bird"
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    We're both proud USAF Retirees...

  7. #17
    Setting Up Camp MattShan's Avatar
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    Awesome information. Looking at all my stem nuts right now. That’s why I love this forum.
    Matt
    2021 Momentum 376THS FW
    2020 Ram 3500 HO Cummins DRW LB
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  8. #18
    Seasoned Camper
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    Not only should you check the valve stem nuts but also the valve stem cores. Over time, they loosen and the seals become brittle to the point of needing replacement.
    2019 F250 Lariat
    2020 Solitude S 2930RL
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  9. #19
    Long Hauler
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    JMO but messing about with things like valve stem cores is a good lesson in "If it ain't broke, don't fix it". In umpteen years of having vehicles with inflatable tires I've never had
    a valve stem core come loose. But loosening a valve stem core to check it, or simply checking to see if it's tight can cause a leak by breaking a good seal. And they may develop
    a leak after checking. JMO of course.
    Howard and Peggy
    2019 Momentum 351M, and 2018 RAM Cummins dually 6-speed.
    His: 1999 Honda Interceptor
    Hers: 2013 Spyder ST-S

  10. #20
    Seasoned Camper
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    Quote Originally Posted by Hoopy Frood View Post
    JMO but messing about with things like valve stem cores is a good lesson in "If it ain't broke, don't fix it". In umpteen years of having vehicles with inflatable tires I've never had
    a valve stem core come loose. But loosening a valve stem core to check it, or simply checking to see if it's tight can cause a leak by breaking a good seal. And they may develop
    a leak after checking. JMO of course.

    All I am saying is, if your tire is losing air, the core is another place to check.
    2019 F250 Lariat
    2020 Solitude S 2930RL
    [SIGPIC][/SIGPIC]

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