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Topic: Inside dual air loss thru extension valve (Read 377 times) previous topic - next topic

Inside dual air loss thru extension valve

I have had a continuing problem with an inside dual tire losing air.  At times the problem also manifested itself as virtually impossible to get added pressure into the tire, topping out around 80 psi.

On a recent trip I found the pressure to be 74 psi.  A tire dealer  identified the problem as being the extension schrader valve.  He worked on the o-ring seal, reinstalled it and aired to the 90 psi.  Next morning, in Raton, I decided with reluctance of what I might find, to check the pressure.  Back to 74 psi. Nuts.  This time went to a different tire dealer, Cunico Tire, Raton , NM, and very easy access (575-445-3473).  He removed the supposedly repaired extension, installed a new one that uses....he says....a much better o-ring type of seal.  And it has been great! ---after two years of messing with this thing with Herman Power.  Thanks Cunico.

I put a picture below of the extension in case a newbie may not know what I am talking about.....uses one schrader valve to press a rod down inside a tube to press the schrader valve on the tire and allow air in, and out.  I attempted a photo of the inlet schrader valve on the extension.

SO...if you are losing some air on an inside dual AND you use this type of air valve extension, it may be something to examine.
Mike
2001 U320 4010 Build 5878 (Gus)
Wrangle Unlimited Toad
Nacogdoches

Re: Inside dual air loss thru extension valve

Reply #1 –
I took my extensions off and threw them in the garbage. Its safer without them. I bought a straight tire filler with a built in gauge,
problem solved 
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport

Re: Inside dual air loss thru extension valve

Reply #2 –
Zero issues with the extensions since my tire guy put the supports in the outside rim for the extension
"Riding and rejoicing"
Bob
1997 U320 40' Mid entry, build 5132,  wtbi ce27, 4th owner
2007 Solara convertible
2 prodeco tech outlaw ss electric bikes

1095 watts solar
08 Ls 460 and a sc430
2000 Ford F-250 superduty 4x4

Re: Inside dual air loss thru extension valve

Reply #3 –
I run the crossfire dual filler/monitor things.
1998 U270 34'

Re: Inside dual air loss thru extension valve

Reply #4 –
On my GV I had those 4in metal extensions and one of them managed to shear off the wheel valve at the threads on the wheel end and gave me a dead flat.  Never again will I fit any extensions. My tire monitor saved the day and the cost of a new tire.
I have seen the flexible ones with the support in one of the outer wheel holes and they "may" work but a trucker said they leak.
Speedbird 1
2001 U320 Build #5865
Daihatsu Rocky Toad
VW Touareg
'82 F100 Stepside
Beech' Debonair