Jump to content

C-925790

Members
 View Profile  See their activity

  • Content Count

    9

  • Joined

  • Last visited

Posts posted by C-925790

  1. Posted · Report reply

    4 hours ago, rayin said:

    I think I understand after viewing your pictures. You  have a flow-thru valve cap on a standard valve stem.  It will unscrew to expose the standard size threads and standard valve core.. Think of it as a really short valve extension. Remove that flow-through stem cap and you should be able to screw on a standard metal valve cap or a pressure sensor. Matter of fact I have those on my sensors on inner duals too now that I know what we're discussing.

    That explains why your standard air gauge fits, only the threads are larger as it is not designed to accept a metal valve cap because it is designed to be both a short extension and valve cap combined. (it has its own rod inside to depress the original valve core in the stem). Kay is right, the large rubber grommet is there to stabilize the long original valve stem.

    Eureka, that is exactly what it was!  Thanks Rayin and everyone for your assistance.  You have, at a minimum, saved me from an embarrassing trip to the tire store. 

  2. Posted · Report reply

    3 hours ago, richard5933 said:

    So all this information still leaves a question...

    If I'm reading all this correctly, the inner duals had a different size valve stem than the other tires. Why? Just doesn't make sense for only two tires to have these larger valve stems. Did they expect the user to carry two sets of everything needed to maintain them (tire gauge, etc.)?

    Actually, the tire gauge and air chuck that I use work on both types of valve stems.

  3. Posted · Report reply

    1 hour ago, rayin said:

    If he truly has special rims for the large bore valve stems he cannot simply have the stems replaced. The .812" /7/8"rim hole is too large to safely use a standard metal valve stem. It's either use those adapters or replace rims.

    I'd really like to see a picture of his present stems. Richard's  thought of only 2 special rims not making sense is logical.

    As you can see, there are large openings in the back of the outer rim that a rubber grommet fits into and the stem goes through the center of the grommet. 

    20210323_084234.jpg

    20210323_084358.jpg

  4. Posted · Edited by C-925790 · Report reply

    12 hours ago, rayin said:

    Well, I learned something new today. Obviously I'm not too old to learn. Turns out there is a large bore valve stem and valve core.  Does your valve stem look like those pictures?

    The good news is this company sells large bore to standard bore adapters.https://tiresupplynetwork.com/search?type=product,page,article&q=large bore valve stem*

    NAPA sells them too. The hole in the rim is .8125"

    Its hard to tell since these pictures have the caps on and there is no picture showing the end of the stem.  I'll check with my local NAPA store for the adapter.

  6. Posted · Report reply

    1 hour ago, kaypsmith said:

    That style sensor is not round, rather an elongated style, probably the stem is too close to the outer rim and wont allow a straight screw on effect. most truck valve stems are made of brass and can be bent slightly for a better fit. Question for OP is, does a regular metal valve cap screw on correctly? If it does,, then you may be able to cover the cap with a short piece of rubber hose the same inner size as the outer of the cap, then carefully  with a pair of pliers bend the stem toward the center of the outer wheel to give relief for the tpms to screw on. If you don't feel comfortable with this task, take to truck tire shop and ask for help.

    No, the stem for the inner tire sticks straight out the back of the outer tire's rim.  There is nothing in the way of screwing the sensor onto the stem.

  7. Posted · Report reply

    On 3/21/2021 at 2:10 PM, rayin said:

    I never heard of an oversize valve stem. Are you sure there isn't an adapter screwed onto the inner stems, or they may have became slightly bent. Does a standard metal valve cap screw on OK?  Have you tested those sensors on different stems?

    That's all I have to offer.

    No, a metal cap doesn't fit on it, in fact the stem on the 2 inner dually tires didn't come with caps as all the other tires did.  I didn't have any issues installing the sensors on the other 6 tires.

  9. Posted · Report reply

    I recently purchased TST-507-FT TPMS kit to install on my 2014 Newmar Ventana.  The installation was fine except for the inner dually tires.  The valve stem for these tires is slightly larger in diameter that the rest of the tires. Consequently, the sensor can not be screwed onto the valve stem.  Has anyone have or heard of this problem and have a recommendation on how to resolve it?  

×
×
  • Create New...