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View Full Version : Belt Tension Air Bags Leaking



truk4u
03-07-2006, 09:33 PM
Found one of my leaks! Both belt tension air bags are leaking. Where do I get these bad boys? The one for the fan looks like a real bitch to get at. Anyone have any experience....:mad:

rfoster
03-07-2006, 10:01 PM
Hey - Just a suggestion - about 6 weeks ago I discovered my air bag for the fan leaking - I adjusted the clamp around the bag and it was silenced. I use the coach about 1 to 2 nights at least every week to every other week & so far so good. I do however have a leak in a pocket door that i can hear when I listen close. I have no idea how to get to it.

You might try loosening the clamp and change the position for temporary relief. I also would like to know a source for the air bags -Roger

truk4u
03-08-2006, 08:38 AM
Roger,
How did you tighten the clamp? Mine seems to have a continuous metal band all the way around with no way of tightening. :confused:

ken&ellen
03-08-2006, 09:01 AM
Tom, I guess I lucked out. My Liberty, '91, has manual adjusters and I got to close my pocket door the old fashion way...by hand. We have enough systems to stay ahead of without getting too fancy. Good luck with your air bags and can not wait to see this coach at POG...I hear she is a beauty.
Ken;)

rfoster
03-08-2006, 09:41 AM
Tom:
Mine is the only air bag I have examined closely, it has a metal type hose clamp, The Liberty I have has a stainless shroud at the rear of the engine from the bumper up. I removed the shroud and was able to access the bag and clamp fairly easy. it is possible that this air bag had been replaced prior to my possession and replacement airbags maybe installed with a wormgear type clamp. Maybe someone on this board can shed more light for both of us.l
Roger

Jon Wehrenberg
03-08-2006, 02:19 PM
The goodyear bellows have a clamp of aluminum. If you have a wormgear clamp it is possible it was added over the top of the original clamp. The bellows are available from Prevost. If it is not the clamp that leaks it is likely a crack in the plastic base.

Ken, I'm surprised you have manual adjusters. Typically, coaches with OTR always had pneumatic belt tensioners, except for converter installed accessories like a second alternator. Early coaches had brass air cylinders (which I loved because you could really polish them up). Series sixty coaches have the small bellows that look similar to generator air bags.

ken&ellen
03-08-2006, 05:56 PM
Jon, I do not have OTR air either. Must have the plain Jane Liberty, but we are happy with it....until the next round of MPD strikes. Ken

Jon Wehrenberg
03-08-2006, 08:32 PM
Pneumatic tensioners are neat because you can flip a valve and they are loosened up enough to remove the belts. Ideal for a quick repair on the shoulder of the road.

But do not dismay if you don't have them. As you have seen posted here they are part of the leaks we have to chase. If I did not have them I would not miss them. I have no clue why they can't build a mega-buck coach with a spring type tensioner on the belts. Just as quick as the air operated ones and no leaks.

lewpopp
03-08-2006, 09:34 PM
Ken

What are you referring to when you speak of "pocket doors"? I guess I am presently braindead.

truk4u
03-08-2006, 09:37 PM
As posted on the other board, I found the bellows at Prevost for 36.00. I have the old ones off, just waiting for parts. I'll keep it as designed, but it would be real easy to just pump them up and then cap off the line making it a manual system. At least it wouldn't be dependent on the aux air causing loose belts at start up. I'm with Jon on this one, give a spring and forget all this air stuff....:o

ken&ellen
03-09-2006, 07:36 AM
Lew, Pocket doors is the term used for a sliding door that goes into the wall. Back in the Victorian age, the late 1800's, they were extremely popular to divide rooms. The purpose was to conserve heat. Now Jerry will jump in there and say Jon was around back then.:D Ken

Jon Wehrenberg
03-09-2006, 05:34 PM
Lew, instead of doors that swing to give privacy to the bath or bedroom our coaches had doors that slid sideways into a "pocket".

Our coach epitomizes wretched excess because we just push a button and by air pressure they silently open or close. Flame away. I can take it.

rfoster
03-09-2006, 07:39 PM
Yea, these doors are really cool! Just like Startrek, (is that spelled correctly?) they make this really neat sound too, - - - when they don't leak!
Roger

lewpopp
03-09-2006, 08:41 PM
I never thought of the inside of the coach after you guys were speaking of leaks ouside at the rear of the coach.

I have a pocket door in the coach, but the only thing that leaks near it is me. No air on my antique pocket.

Thanks for the enlightenment. I need to be yelled at every so often, as long as it isn't Mango yelling.

Jon Wehrenberg
03-09-2006, 08:48 PM
We don't yell, and ignore Mango. He gets his shorts in a bunch once in a while because he is the sole male in a house of females.