Best way to fill both duals from the outside

[Bigd2]

I have done some searching about TPMS and decided to go with the Hawkshead system. I really don’t want to have to take the tires off to install a steel tee fitting that would allow me to leave the sensors on and still be able to add air. When I install the next set of tires I will also install the steel tee fittings. I have a single rear axle with two sets of duals. So, at this point I am looking for some ideas that would allow me to bring both of the air fillers to the outside of the dual for easy access. Someone that makes a good system that can be reasonably relied on to perform well. I am aware of the flexible steel braded lines. If that ends up being
the only way then who makes the best setup?

I am really not trying to start a discussion about TPMS systyems

Thanks in advance

Dick

[Mr_D]

You should be able to use the standard truck dual head air chuck to add air. That's all I need to do. NAPA or most auto parts stores have the fitting. For some reason people seem to think there is only one air chuck.

[njs42]

Dually Valve

Dullyvalves:

Take a look at these I am having a set installed with my new tires---lots of fans of these on IRV2.

[Bigd2]

Originally Posted by Mr_D

You should be able to use the standard truck dual head air chuck to add air. That's all I need to do. NAPA or most auto parts stores have the fitting. For some reason people seem to think there is only one air chuck.

I have one but in order to fill the tire I have to remove the TPMS sensor. On the outside dual the stem is pointing in and on the inside dual it is very
difficult to remove the sensor. I was looking for a way that would place both sensors on the outside for ease of access. Maybe I am just not seeing the solution. At my age thats very possible.

Thanks
Dick

[38 Special]

Search for "180 degree valve stem extension". That will solve your problem. Here is a link, note, I know nothing of this company, just found them with a google search.

180 Degree Valve Extension

[Bigd2]

Originally Posted by njs42

Dually Valve

Dullyvalves:

Take a look at these I am having a set installed with my new tires---lots of fans of these on IRV2.

That is a very nice setup. I was trying to avoid the cost of removing all the tires to install the valve until it is time to get new ones. The Dually Valve would be right at the top of the list.

I will have to call to find out what my service guy would charge just to install the stems

Thanks for the link

Dick

[AFChap]

Anything marketed as a "system" will be pricey. I would keep it simple by going to Napa or a truck supply place and buying solid metal extensions for the inner duals. They come in various lengths. That is what my coach came with from the factory and they have worked great for over 60k miles. My TireTracker sensor (identical to Hawkshead I believe) sits in the wheel hole a bit tward the outside. I can easily remove them to add air (which normally should be maybe once a year?)

[JimM68]

Mine has the braided hoses. Came that way. I added the tst507 tpms, and it is cake to unscrew them if I need to add air. Note that in 8 months and 12,000 miles, I (knock on wood) have never ever ever needed to add so much as a pound of air.

I had the hoses on my last coach, and they were problematic. Changed them a couple times, never did get any that actually kept the air in the tires reliably. No tpms on that one either, was constantly messing with tires. I feel very lucky and do not miss messing with tires not one little bit.

Someone does make a tpms sensor with a passthrough air fitting.

[njs42]

Originally Posted by Bigd2

That is a very nice setup. I was trying to avoid the cost of removing all the tires to install the valve until it is time to get new ones. The Dually Valve would be right at the top of the list.

I will have to call to find out what my service guy would charge just to install the stems

Thanks for the link

Dick

Les Schwab has quoted $24,00 locally per tire to remove and remount---the Dullyvalves are $110. plus shipping so you are going to be in about $200-----$250.

Maybe these one piece extensions other have mentioned would work for now and you can do something else when you change tires. It looks like the one piece extensiions are DIY.

Anyway good luck.

[wa8yxm]

Crossfire tire pressure equalization system.. They make one that is compatable with most TMPS units plus it has a visual indicator.

This unit consists of two flexible extension hoses, with either a single or 2 fill (Valve stems) the pressure in the two tires is kept equal at all times unless it drops below 70 % of the "Green" pressure.. (IE if you buy a 100 PSI unit then 70 PSI) if it drops below that the cross connect valve closes and shuts off so one tire retains air. You fill only the one stem. the other one is .... Cross filled.

[Bigd2]

Originally Posted by JimM68

Mine has the braided hoses. Came that way. I added the tst507 tpms, and it is cake to unscrew them if I need to add air. Note that in 8 months and 12,000 miles, I (knock on wood) have never ever ever needed to add so much as a pound of air.

I had the hoses on my last coach, and they were problematic. Changed them a couple times, never did get any that actually kept the air in the tires reliably. No tpms on that one either, was constantly messing with tires. I feel very lucky and do not miss messing with tires not one little bit.

Someone does make a tpms sensor with a pass through air fitting.

If I understand correctly, you had braided hoses on both coaches and the one you now have works fine but the other did not? I assume that the hose would have to be fastened to the rim or the hub cap?

Hawkshead does make a metal tee fitting that allows you to put air in and leave the sensor on. There may be others.

RV TPMS, TRUCK TIRE MONITOR RV VALVE EXTENDERS VALVES EXTENSIONS

Thanks
Dick

[Bigd2]

Originally Posted by 38 Special

Search for "180 degree valve stem extension". That will solve your problem. Here is a link, note, I know nothing of this company, just found them with a google search.

180 Degree Valve Extension

I did take a look at those. Very simple solution. As AFChap mentioned earlier, with the 180 degree and a (in my case) a 4" straight extension for the rear I might be able to solve my problem until I replace the tires at which time I am leaning toward the Dually Valve. I particularly like the rubber grommet that the Dually Valve has for the rear extension. Vibration or movement of the 4" extension is a concern of mine. Over time
a single straight 4 or 5 inch extension could play havoc with the stem connection to the rim. There is a heavy duty truck and trailer repair shop close to me. I think it's time for a visit.

Thanks for the input
Dick

[Bigd2]

Originally Posted by wa8yxm

Crossfire tire pressure equalization system.. They make one that is compatible with most TMPS units plus it has a visual indicator.

This unit consists of two flexible extension hoses, with either a single or 2 fill (Valve stems) the pressure in the two tires is kept equal at all times unless it drops below 70 % of the "Green" pressure.. (IE if you buy a 100 PSI unit then 70 PSI) if it drops below that the cross connect valve closes and shuts off so one tire retains air. You fill only the one stem. the other one is .... Cross filled.

In my wondering around the net I did see the system you are talking about. This is another great idea. This is one of the great things about a forum like this. I would venture to say that almost any problem that we could come up with has been dealt with by members of this forum at one time or another. I almost feel guilty for not contributing more, but coming from a fifth wheel to a motorhome has very few similarities.

Now if someone would just come up with a system that would use the on-board air compressor to automatically fill the tires when they need it

I could go for that!

Thanks
Dick

[CLarence39]

I just had a Cross Fire braded hose system installed by a large tire shop here in Houston - neat installation but I keep loosing air - soap does not show any air loss - I also have not had any luck airing up the duals by using the center Tee - any suggestions? Clarence