On 5/17/19 1:09 AM, Arlen G. Holder wrote:
On Thu, 16 May 2019 23:11:57 -0400, Ed Pawlowski wrote:

The slot is just like a slot in the head of a screw. It is used for
assembly, disassembly
Thanks Ed,

Interestingly, there was no steel spring inside when I unscrewed the face.

There was just the screw-off face, the round body, and a "pin" that had a
rubber grommet around it (which must act as the "spring").
https://i.postimg.cc/qRRVJJ9d/valve03.jpg

The valve stem is for different rims. Typically truck rims are thicker
and heavier and tires have higher pressure.
What the package said was completely clear to me, which was only that it
specified only a MAXIMUM thickness and pressure.

I was asking about the unspecified MIMIMUM thickness and pressure, which, I
suppose, can only be garnered from experience.

In _my_ experience, admittedly only about 30-odd tires, I've used both
types in passenger car tires with nary a leak - but Clare says the brass
valve stem "might" leak in a thin rim, even though a minimum spec wasn't
specified on the package.

I would have gotten what I normally get, which is 1-1/2 inch brass 0.453"
diameter bolt in 60psi valves - but the store didn't have any and this was
an emergency mount and balance.

To be clear, the ones I normally get have TWO diameters, because they come
with two rubber grommets, one for 0.625" holes and the other grommet for
0.453" holes as shown in this photo from a prior mounting & balance:
https://i.postimg.cc/qRG62LRT/valve04.jpg

Notice, for example, in this photo there are TWO grommets where only one is
used, depending on how big the hole is:
https://i.postimg.cc/C1ds75Z5/valve05.jpg

Those are the valves I normally use - where in about 30-odd mounts,
I haven't had a valve leak yet.

The question wasn't ever about the maximums, since _all_ the valves sold in
that store had maximums well above this particular vehicle's spec - so -
based on the spec - EVERY valve "fits".

The question was about the minimums, which are unstated on the package.


So many decisions!

See, this is why I take my car to Wally's Service Station and have Goober do my tires.Â* It's just easier.