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Old 03-30-2003, 10:40 AM   #1
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I just read Wes Caughlan's column in the latest issue of "Motor Home". A question was raised about Valve stem extentions. He does not recomend the use of valve stem extentions at all.
I have braided stainless steal extention on both the inside and outside duals on my motorhome and have not had a problem (yet).
Checking tires on duals with decorative wheel covers no mater what kind of air chuck you have can be a real chore without extentions.
I guess my question is 1) Has anyone had problems with extentions? 2) Does anyone have any good alternatives for checking tires without the use of extentions?
Happy traveling, Ray
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Old 03-30-2003, 10:40 AM   #2
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I just read Wes Caughlan's column in the latest issue of "Motor Home". A question was raised about Valve stem extentions. He does not recomend the use of valve stem extentions at all.
I have braided stainless steal extention on both the inside and outside duals on my motorhome and have not had a problem (yet).
Checking tires on duals with decorative wheel covers no mater what kind of air chuck you have can be a real chore without extentions.
I guess my question is 1) Has anyone had problems with extentions? 2) Does anyone have any good alternatives for checking tires without the use of extentions?
Happy traveling, Ray
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Old 03-30-2003, 10:59 AM   #3
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<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by Retired Ray:
1) Has anyone had problems with extentions? <HR></BLOCKQUOTE>Ray, I have had a problem with a front valve extension, in fact it was loosing a lot of air. What I found was that the valve extension was originally installed too tight and as time went on the connection between the extension and the valve began to leak.

If I were to install valve extentions on the new motorhome, and I may yet, the trick is to get a spray bottle with soapy water and install the valve extention just to the point where it stops leaking. I would then give it another 1/2 turn and check for leaks.



Guaranteed! - If you over tighten a front valve extender it'll leak. The good news is that if you remove the extension the valve remains in the stem and you can simply re-inflate your tire back up to specs and drive away.

I didn't have problems with the rear valve extenders that were installed. Wheel Masters makes ZIP™ Airless Valve Extenders. I may buy a set of these and install them on the rear tires.

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Old 03-30-2003, 01:11 PM   #4
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I believe that the valve stem extensions in the article were all-rubber valve stem extensions on smaller diameter light truck tires. The rubber would flex and fail after a time. With the larger 19.5 or 22.5 MH tires they use metal valve stem extensions with a rubber bushing and jam nut to seal them so they do not have the same flex problem that they lighter duty ones do.

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Old 03-30-2003, 04:33 PM   #5
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In a post on another board the writer said he cut a piece of garden hose to the correct length and slipped it over the valve extender. Claimed it stopped abrasion on the extender.
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Old 03-31-2003, 05:36 AM   #6
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When we purchased our '97 Patriot it had the braided stainless over rubber extentions. Our first cousins advised to take them off and throw them away and put solid sealing extentions on that fit into a rubber insert that Alcoa sells for their 22.5 alum wheels. My cousin said the only benifit he has seen for the braided extentions is for his tire business.

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Old 03-31-2003, 06:15 AM   #7
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We use the braided steel extenders and have had one problem, a very slow leak in the inside dual extender.
We were told very strongly by a lot of people "Don't use extenders" So for a while we went without, taking off the wheel covers to check the tires. We decided regular ease in checking was very important to us and have replaced them. We have also been told that the secret to their function is the proper installation. Makes sense
No further problems. We have met a few folks who say they have never checked their inside duals. Too important to skip isn't it!

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Old 03-31-2003, 10:37 AM   #8
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A few years ago I drove from the Riverside RV park at Laughlin to the Casino parking lot to eat breakfast and return home. (It's just across the street)

When returning to the Class C I noticed the outside tires looked low. I checked with a gauge and they were OK. I drove to Mesa and the next day to Tucson.

Unrelated I took the RV in for an alignment. When the attendent came walking to me I felt a sense of dread. He informed me that both inside tires were flat, the rubber extenders had cracked.

The tires were ruined. Recently I went to check the tires on my Class A and an outside dual was flat. The all metal extender had come loose. I should probably take them off but they are an incentive to check more frequently.

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Old 03-31-2003, 06:24 PM   #9
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I've had the steel braided extenders on my 98 Itasca since I bought it in 99, they were the first thing I added to the new MH, because I had them on the older MH and loved them, and never had a problem on either one.

I wouldn't want to be without them.



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Old 04-01-2003, 09:57 AM   #10
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They came on our older ('91) home and I believe the original owner installed them or they came from the factory (Tiffin) that way. We've put 20k on it and no problems and can't imagine doing without.
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Old 04-01-2003, 12:31 PM   #11
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ZIP or zero inflation pressure (in the valve extender) seems to be the way to go. Does anyone use the "Zippies"?

The ZIP extenders are fully braided and seem to be well made however there is a step up in price from the conventional braided Wheel Master extenders. I had these installed on the 37G.

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[This message was edited by DriVer on April 01, 2003 at 09:05 PM.]
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Old 04-01-2003, 01:45 PM   #12
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I tried a set of the ZIP extenders on my previous Ford chassis. I installed them but removed themn after a day because I couldn't get them adjusted to stop leaking. I believe the problem was caused by the type of wheel liners I had and the bend in the braided hose.

As you know, the hose has no pressure in it, but dies have a cable running the length of the hose which depresses the tire valve allowing air to be added or removed. In my case, the cable was hanging up which caused the valve to be pressed. The problem was caused by the bend in the extension, so be sure to install them fairly straight.

Now that you reminded me about them, that's another item for the Nashville flea market table

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Old 04-06-2003, 07:34 PM   #13
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Braided valve extensions were on all wheels on my previous coach (2001 Monaco Lapalma) when I purchased it. I kept it for a year with no problems with the extenders. When I recently purchased my current Winnebago, I noted there was no way to access the valve stems and requested that Lazy Days install braided valve extensions attached to the hubs. With them, I have experienced no problems.

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Old 04-07-2003, 05:53 AM   #14
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I have found the tire inflator as found at many air stations having the handle to supply air - the pop out gauge and the flexible 8"-10" long straight valve connection to be excellent for checking the inner dual tires as well as all.
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