Good Sam Club Open Roads Forum: Maintaining air pressure in your tires
Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Class C Motorhomes

Open Roads Forum  >  Class C Motorhomes  >  Class C

 > Maintaining air pressure in your tires

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 3  
Prev
ScottG

Bothell Wa.

Senior Member

Joined: 02/25/2005

View Profile



Posted: 07/01/21 10:08pm Link  |  Quote  |  Print  |  Notify Moderator

Grit dog wrote:

ScottG wrote:

A while back I stumbled upon an article that indicated the schrader valve isn't supposed to be the main device for holding air in a tire, the cap is.
I always buy metal caps with rubber seals just in case the schrader starts leaking.


With all due respect, that article had to have been in the National Enquirer right under the "Les Schwab was abducted by aliens" article!


I didn't catch any respect there but as an engineer type, I keep my mind open to learning new things about absolutely anything and never let preconceived notions keep me from doing so.

Anecdotal. Back in 1978 my buddy's brother allowed us to use his brothers new Corvette for an evening. For some reason long forgotten, we checked the air pressure in the tires. One tire had a slight leak at the schrader valve when I checked it. Being a dumb 17 y/o kid, I just screwed the cap back on and we went on our way.
That tire held air all night and was still up the next day when I dropped by their house.

Grit dog

Black Diamond, WA

Senior Member

Joined: 05/06/2013

View Profile


Offline
Posted: 07/01/21 10:19pm Link  |  Quote  |  Print  |  Notify Moderator

ScottG wrote:

Grit dog wrote:

ScottG wrote:

A while back I stumbled upon an article that indicated the schrader valve isn't supposed to be the main device for holding air in a tire, the cap is.
I always buy metal caps with rubber seals just in case the schrader starts leaking.


With all due respect, that article had to have been in the National Enquirer right under the "Les Schwab was abducted by aliens" article!


I didn't catch any respect there but as an engineer type, I keep my mind open to learning new things about absolutely anything and never let preconceived notions keep me from doing so.

Anecdotal. Back in 1978 my buddy's brother allowed us to use his brothers new Corvette for an evening. For some reason long forgotten, we checked the air pressure in the tires. One tire had a slight leak at the schrader valve when I checked it. Being a dumb 17 y/o kid, I just screwed the cap back on and we went on our way.
That tire held air all night and was still up the next day when I dropped by their house.


A metal valve stem with a gasket will hold some pressure. ( I used one on a leaking valve core in a pinch, had to swipe it off a random vehicle in the parking lot. Probably should have left him a dollar, lol but desperate times called for desperate measures...) And even a plastic one will help a little if it's low pressure I imagine, but a valve stem cap is 100% not designed to be the primary or even secondary means of keeping air in a tire.
Think about it. If they were, they would be much more robust and not standard plastic. They are primarily to keep crud out of the valve stem.


2016 Ram 2500, MotorOps.ca EFIlive tuned, 5” turbo back, 6" lift on 37s
2017 Heartland Torque T29

CapriRacer

Somewhere in the US

Senior Member

Joined: 01/27/2012

View Profile


Offline
Posted: 07/02/21 06:42am Link  |  Quote  |  Print  |  Notify Moderator

ScottG wrote:

A while back I stumbled upon an article that indicated the schrader valve isn't supposed to be the main device for holding air in a tire, the cap is.
I always buy metal caps with rubber seals just in case the schrader starts leaking.


As a tire engineer, allow me to correct a few things.

First, the Schrader valve IS the main device holding in the air. The metal cap is a back up.

And I recommend using the metal cap.


********************************************************************

CapriRacer

Visit my web site: www.BarrysTireTech.com

DrewE

Vermont

Senior Member

Joined: 08/23/2014

View Profile


Offline
Posted: 07/02/21 08:14am Link  |  Quote  |  Print  |  Notify Moderator

I use "Gator caps" (Alligator V2B) on my motorhome, which are metal air-through valve caps with secondary seals. I do highly recommended for convenience and quality. Do make sure to get them nice and snug when installing, not always a simple task for dually tires with standard stems (unless you have the wheels off).





jjrbus

FT Myers FL

Senior Member

Joined: 07/19/2008

View Profile


Offline
Posted: 07/03/21 07:39pm Link  |  Quote  |  Print  |  Notify Moderator

I'll second the China solar TPMS. I use a set of 4 on the duals. Not NASA accurate and have some quirks but never fail to report a loss of pressure. They tend to last about 2 years and I buy 2 at a time as there are no replacement sensors available.

I use to spend too much time trying to balance psi in tires, the TPMS showed me pressures are all over the place. The outer tire in direct sun can have higher pressure than the inner dual and sun side tires will be higher psi that shade side.

Picked up a nail during the day and was losing pressure, inside dual of course! Would not have known without the TPMS and would have ruined 2 tires. Unless of course you think that driving all day on one tire does not hurt it?

CSUtah

Southern California

New Member

Joined: 02/03/2010

View Profile



Good Sam RV Club Member

Offline
Posted: 07/06/21 02:46pm Link  |  Quote  |  Print  |  Notify Moderator

looking for good tires for an RV C-Class we had Michelin LT and they went 7 yrs. They don't make that tire anymore what has been good for other C-Class?

NamMedevac 70

Reno

Senior Member

Joined: 11/09/2020

View Profile



Posted: 07/06/21 09:48pm Link  |  Quote  |  Print  |  Notify Moderator

Unlike Texas with high heat and humidity in northern dry Nevada my LT tires on two trucks never lose air pressure and I check them regularly. When living in central Texas I was constantly having to add air to same tires on 3 trucks and a TT.


I enjoy being a bully to other bullies on another forum. Cheers

Guardpasser5000

canada

New Member

Joined: 07/08/2021

View Profile


Offline
Posted: 07/08/21 05:13pm Link  |  Quote  |  Print  |  Notify Moderator

I've had 2 blowouts and 1 leak all related to valve stems. Got all 6 changed and made sure they used high pressure rubber stems with the metal filler deal. Did a 1000 mile trip with no problems. Also religious about tire pressures. Each incident I had checked them pre-trip. Super paranoid now.

Gjac

Milford, CT

Senior Member

Joined: 08/16/2006

View Profile



Good Sam RV Club Member

Offline
Posted: 07/11/21 09:38am Link  |  Quote  |  Print  |  Notify Moderator

https://www.amazon.com/Slime-20088-4-Way-Valve-Cores/dp/B0020T17J2?ref_=ast_sto_dp. This is what I carry in the MH. My tires lose very little air over a year. But in the past on a few occasions over the last 15 years and 100k miles of travel I have had the cores leak very slightly. I put some soap and water on the valve stem and noticed a bubble every now and then, I would tighten them with the tool and see if the bubbles went away, and usually they did. On one occasion I had to remove the valve stem and insert a new one. For a $1.98 for the tool and 4 valve stems it is good to carry with you. If you notice you have to add air all the time check the valve stem with soap and water you may have to just tighten the valve stem.

scbwr

North Ridgeville, OH

Senior Member

Joined: 03/09/2004

View Profile



Good Sam RV Club Member

Offline
Posted: 07/12/21 06:58am Link  |  Quote  |  Print  |  Notify Moderator

I have a golden rule that each time we stop with our rig, as soon as I exit the MH, I do a walk around of the entire rig and specifically check the tires, hitch, etc.

The second rule I'm trying to follow is to slow down and take your time when it comes to setting up and breaking down my rig. And, I'm trying to train myself and use the checklists I've created. Taking a bit more time and using checklists can help you to avoid costly repairs.....don't ask me how I know this![emoticon]


2012 Newmar Bay Star 3302
Blue Ox Avail
BrakeBuddy Advantage
2015 Malibu

"Get busy living, or get busy dying."
Andy Dufresne, The Shawshank Redemption

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 3  
Prev

Open Roads Forum  >  Class C Motorhomes  >  Class C

 > Maintaining air pressure in your tires
Search:   Advanced Search

Search only in Class C Motorhomes


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:




© 2021 CWI, Inc. © 2021 Good Sam Enterprises, LLC. All Rights Reserved.