TST Tire pressure question

[bullroc3]

The information on the TST tire pressure monitoring system states that you need metal valve stems. Would the valve stems that come on the new units meet that criteria? They are all metal down to the rim where there is rubber where it pulls through the rim?

 

[Rvtravlr]

Ours are metal with a rubber seal on either side of the rim and snugged down with a nut on the inside of the rim.

 

[Art-n-Marge]

They mean the solid metal stems. You have the stems I used to have which are rubber and have an outer metal sleeve (mostly decorative chrome) and are not as strong as the solid metal stems. The issue is that if you have the extra weight of the sensor on the end of the stem, the metal stems can support the centrifugal and other forces that accompany these sensors and the rubber types might be more prone to stress and cracking and therefore failure.

Like snfexpress mentions the difference is that rubber is being used to seal the stem but the stem itself is metal.

I have since replaced all the tires on the rig and had metal stems installed. Same thing with my truck at the last tire change.

 

[Bill and Jan]

When we purchased our Mountaineer we transferred our monitors. We drove it from Ohio to our home in Arizona. As soon as we returned home we took the rig down to have the valve stems changed to steel ones. All of our RV friends have also changed their's. We attended RV Boot Camp through the Escapees and they recommended having steel valve stems with or without monitors. I did find that the booster antenna works better with them.

 

[bullroc3]

OK. Thanks for the replies. I will be changing the stems as soon as I can. That will happen when I get the new lug nuts they ordered for me.

 

[RJI47]

I was told by the Goodyear dealer that if the psi goes over 40, then metal valve stems are required. I think all big trailers come with them. some look like they're metal, and others have a black rubber coating over them.

 

[Jlb27537]

Depending on what TST sensor you have, If you have the 510 or the 507 flow thru sensors it is recommended you have the bolt in metal valve stems.

If you have the new 507RV sensors with replaceable batteries you can use rubber valve stems.

I took pictures and sent them to TST and got as phone call in about 5 minutes from Mike Benson @ TST. He can be reached @ 770-889-9102 or Mbenson@tsttruck.com

I bought the new 507RV system. Mike said my OEM stems would be just fine.

Jim

 

[ols1932]

I've been using metal stems (all metal, no rubber) ever since one of the rubber ones blew right out of the rim. The rubber ones will not hold up under pressures like 80 psi.

Orv

 

[bullroc3]

Good information again. Thanks. Will have to check on the new system.

 

[Jlb27537]

quote:Originally posted by ols1932

I've been using metal stems (all metal, no rubber) ever since one of the rubber ones blew right out of the rim. The rubber ones will not hold up under pressures like 80 psi.

Orv

Not True. The stems in my 2014 wheels will safely hold 110psi. Per Keystone. Maybe on your 2000 that was true, not so today.

Jim

 

[bigred715]

How come our trucks come with rubber stems? I don't use the TST system on my truck. I run 80# in the rear and 65# now in the front and NEVER have had a problem with any truck with rubber stems. The thing Goodyear states must only be for trailers.

 

[SEnfinger]

All metal on ours. The less exposed rubber the better. he more it flexes the faster it fails. GO metal.