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06-29-2020, 04:50 PM
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#1
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Senior Member
Texas Boomers Club Holiday Rambler Owners Club Georgie Boy Owners Club
Join Date: Jul 2016
Location: Bowdon, Georgia
Posts: 178
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Valve stem extensions
Braided valve stem extensions were put on the rear dual wheels 1-1/2 years ago when we had new tires installed. The darn things have leaked air since the install. They have been such a pain I had them removed last week when the brake recall was performed on our 2003 Holiday Rambler's Workhorse chassis.
Removing them has created another problem for me. I can't access the existing valve stems to check the pressure.
I really need some suggestions from those of you who have solved their dually air pressure problem!! I'm considering 2 approaches to resolve this problem: 1). Have longer valve stems installed on the 4 rear dual tires or (2). Install 3" straight extensions and install rubber doughnuts on the oval cutouts in the wheels. These will let the extensions pass through the doughnuts and stabilize them when the tires are rotating. Hopefully this will stop the air leakage.
I need help on this issue!! I really look forward to hearing what worked for you folks who have experienced this problem.
__________________
George Bonorden
2003 Holiday Rambler Vacationer 34' Workhorse
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06-29-2020, 04:53 PM
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#2
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Moderator Emeritus
Newmar Owners Club
Join Date: Apr 2014
Location: Southern Indiana
Posts: 19,417
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I ditched the extensions 3 years ago and have not looked back.
Installed the one piece Dually Valve Stems.
https://yourtireshopsupply.com/categ...lly-valve-kits
Trouble free easy access. Little pricey but worth every penny.
__________________
Steve
2002 Newmar Mountain Aire 4095
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06-29-2020, 05:53 PM
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#3
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Senior Member
Join Date: Nov 2011
Location: Full time RV'er
Posts: 5,126
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I found these at a local OK Tire Store here in Oregon. Cost was $21. All brass. The shop owner knew exactly what I wanted and ordered them from his distributor. Unfortunately I don't know who that was.
Had the tire shop install when they installed my duals. And they had 'the kid' do one wheel and after mounting, it blew out because the rubber washer was too small. Of course the old hands at the shop knew exactly what the issue was and even had the larger washers in stock so little lost time. But glad they caught the mistake there, not something I'd want to find out at 60 MPH.
I did use my tin snips on the wheel cover to make a small slot for the long brass extensions. There was no oval donut provided with this set and I didn't bother with them either. 3300 miles later they're still looking good.
They are similar to the $120 set listed for my RV at the link above.
Before I got around to changing my tires, I did try to find brass extensions and the best prices were delivery from China. Usually the sets were in the $20 range. That didn't suit me because I move around so much and waiting 8 weeks for an overseas delivery wasn't in the cards for me. Pretty happy when I found I was able to order them at OK Tire, AND they were a decent price.
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06-29-2020, 09:18 PM
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#4
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Senior Member
Join Date: Nov 2009
Location: Warren, Oregon
Posts: 2,559
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When I had my first set of tires installed I had the tire shop install new stems and 4in extension that I supplied then last year installed new tires and new 4in extension, no leaks and my TST work great no problems.
2stroker
__________________
2006 Country Coach Inspire 360 40ft Genoa Designer Series, Samsung 197 RR
Cat C9--STEEL & COPPER Bolt Together Radiator w/ updated rubber mounting
SilverLeaf 330 Magnum 2812 PSW 2011 Ford Edge Sport-Air Force One
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06-29-2020, 09:21 PM
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#5
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Senior Member
Join Date: Nov 2009
Location: Warren, Oregon
Posts: 2,559
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Quote:
Originally Posted by 2 Stroker
When I had my first set of tires installed I had the tire shop install new stems and 4in extension that I supplied then last year installed new tires and new 4in extension, no leaks and my TST work great no problems.
2stroker Attachment 291481
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These are the ones I use, 4in extension
2 stroker
__________________
2006 Country Coach Inspire 360 40ft Genoa Designer Series, Samsung 197 RR
Cat C9--STEEL & COPPER Bolt Together Radiator w/ updated rubber mounting
SilverLeaf 330 Magnum 2812 PSW 2011 Ford Edge Sport-Air Force One
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06-30-2020, 08:35 AM
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#6
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Senior Member
Join Date: Sep 2018
Location: Fort Myers, FL
Posts: 1,669
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I had to put 1-1/2" metal extensions on my inside rear stems so that I could get my TPMS onto them. I had to extend my fronts by 3/4".
Did it a couple of years ago and have had zero trouble.
__________________
2008 Phaeton 36QSH, Safe-t-Plus, Quadra Bigfoot
2017 Jeep Cherokee Trailhawk w/ flat tow wiring mod.
Blue ox, BrakeMaster + BrakeAway, diode lights and charge.
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06-30-2020, 09:19 AM
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#7
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Senior Member
Join Date: Feb 2015
Posts: 1,951
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I used extensions on my inner dullys but they were prone to leak. I replaced them with longer valve stems I bought from Borg Equipment & Supply 7317 Foothills Blvd Tujunga CA 91043, it’s a suburb of Los Angeles. They have a web site and their phone number is (818) 352-8717. The cost was about $55/60 dollars. I had the tire department at T/A install then for $80.
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2015 Itasca Ellipse 42QD
2017 Jeep Wrangler Rubicon Hard Rock
2011 Harley Davidson CVO Street Glide
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06-30-2020, 10:28 AM
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#8
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Senior Member
Workhorse Chassis Owner
Join Date: Jun 2007
Location: Coaldale, AB
Posts: 358
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I have had a little grief checking pressure on in side dual. When my new tires were installed the out side dual was one bolt hole off. I purchased a 12 ton jack from amazon for $63.00 (I immediately found one for $30.00) So I jacked up wheel with my $63.00 jack and moved outside wheel one bolt hole. then found that torque was 175 lbs. i had purchased a long torque wrench for this purpose. I still did not have the strength to torque to 175 lbs. So I called my very mechanically inclined daughter to do it for me. Well she is at work but later comes and does it for me. Then I find i can't check presser because some thing is wrong with my extension. So I call daughter back and she is at work but eventually comes and helps and of course the stupid extension works for her. Sorry for the long winded storie, but it took me three days to do a 30 minute job. Its done now so all is good.
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05 Itasca Sunova 29R
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06-30-2020, 02:12 PM
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#9
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Senior Member
Winnebago Owners Club
Join Date: Aug 2012
Posts: 465
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Installed "Crossfires' on the rears of last 2 coaches. It connects both tires thru check valves to a common fill point. If one tire is going flat it will allow other tire to loose 5-10% (I think) and then the check valve closes so both tire don't go flat. It connects thru an indicator that shows if you have adequate pressure. Correct pressure shows yellow, low pressure shows black, and hi pressure (after driving) show yellow. A quick glance during your walk around before leaving or at each gas stop tells you quickly of you're OK. You need to know what pressure you run at as they come in 5psi ranges (e.g. 85#, 90#, 95#...)
Advantage to this system over TPMS is the common fill point.
Skip Y
2010 Journey, 2015 Equinox
WIT Club 47083, FMCA F263635
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07-01-2020, 04:18 AM
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#10
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Senior Member
Join Date: Jul 2013
Location: North Ridgeville, OH
Posts: 2,455
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Quote:
Originally Posted by Spk64
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Did the same on our Bay Star. The Borg stems are expensive, but I'm very happy with the product. And, my TPMS works well with the Borg dually stems.
__________________
Retired but busier than ever!
2012 Newmar Bay Star 3302
5 Star Tune, SumoSprings, Roadmaster Steering Stabilizer, Blue Ox Avail
Brake Buddy, 2015 Chevy Malibu
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