Wheel (tire) valve stems

boybach

Well-known member
Dec 9, 2020
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In this recent cold snap, some of the tires deflated. When I reinflated, I could see small bubbles coming from below the oval plate at the base of one
of the valve stems. I tightened up the nut at the base of the stem and that seemed to hold.

When I had the new tires mounted and balanced the tire place said it didn't have that "old" style of valve so they went ahead and mounted the tires
with the old valves in place. During summer the pressures say reasonably even although I do check them before every trip. Every winter I get some tire
pressure loss, but this year with the extra cold weather all but two of them deflated.

Can I get the old style of valve stem to suit these wheels?

TIA

Larry
--
Larry - Victoria BC -

1977 ex-Palm Beach "Ol' Leaky" 40,000 miles, PO said everything working but forgot the word NOT. Atwood helium fridge, water heater & furnace. SS
exhaust system, Onan, Iota Converter, R134A, New fuel lines & heat exchange hoses
 
I replaced my car tires last Friday.It was a coldsnap here, below freezing for several days. Tires with 36 PSI a couple of weeks ago showed 29PSI in
the cold. May be what you're seeing, but the bubbles indicate a loose stem.

--johnny

--
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
 
When it comes to valve stems, there are low pressure(usually popped in). And higher pressure stems. You need a stem that is rated to at least 80
psi. So some car tire shops do not have the higher psi stems handy.

Any truck shop should have proper stems. This is a simple part.

You probably will be ok long term with just making sure stems are tight.
--
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
 
Could also be corrosion on the steel where the stem seats. Need to wire wheel and then paint the area with Rustolium or similar before installing new
steel stem assembly.
--
John Lebetski
Woodstock, IL
77 Eleganza II
 
You can also swab some bead sealer onto the hole and/or stem to help seal minor leaks.

>
> Could also be corrosion on the steel where the stem seats. Need to wire wheel and then paint the area with Rustolium or similar before installing new
> steel stem assembly.
> --
> John Lebetski
> Woodstock, IL
> 77 Eleganza II
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> GMCnet mailing list
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That sounds like a plan - so just slop this stuff around the valve stem and that oval plate at the base of the valve, right?

This oval plate extends about 1/4" either side of the valve stem - all the replacement valves seem to be cylindrical. Were these oval plate style
valves OEM on the coaches and is it necessary to use them or what? I'm presuming the wheel aperture for the valve is just a normal hole and not ovoid
in any way so not sure why the valve would have these plates at the base other than to act as a "washer" presenting a flat surface for the locking nut
to address the slight curvature of the rim. Can't see why else.

Larry

> You can also swab some bead sealer onto the hole and/or stem to help seal minor leaks.

--
Larry - Victoria BC -

1977 ex-Palm Beach "Ol' Leaky" 40,000 miles, PO said everything working but forgot the word NOT. Atwood helium fridge, water heater & furnace. SS
exhaust system, Onan, Iota Converter, R134A, New fuel lines & heat exchange hoses
 
Bead sealer over crusty rust is not a proper repair. Air will undermine and find a new path in short order.
--
John Lebetski
Woodstock, IL
77 Eleganza II
 
Right, that’s true. It can help seal cleaned & rust-free but pitted metal on a wheel though. It also helped stop the oxidation of aluminum wheels at the bead we used to see so often when I worked at a Goodyear many years ago. More or less, it’s just black rubber cement and cleans up easily, but can work wonders on other older and finicky wheel and tire setups.

-Dave
1978 Transmode near Pittsburgh

>
> Bead sealer over crusty rust is not a proper repair. Air will undermine and find a new path in short order.
> --
> John Lebetski
> Woodstock, IL
> 77 Eleganza II
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options: