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Old 08-06-2014, 10:48 AM   #1
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Air Ride adjustment

From time to time while traveling I noticed right rear side of coach (94 Monaco Executive) will bottom out enough for the fender well area to make contact with top of tire. When coach is parked it appears to be level, air will leak down to around 70 - 90 psi over night. My question can the left and right air bags height on each axel be adjusted independently of each other or does one valve control all bags on each axel?
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Old 08-06-2014, 12:06 PM   #2
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On the Monaco vesta there is an adjusting valve just in front of each rear axle for each rear side. They are not easy to access. The front valve is on passenger front. If you adjust be careful not to get caught up or under your coach.
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Old 08-06-2014, 08:50 PM   #3
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You have two ride height valves at the back of the coach. You adjust them to achieve correct rear ride height, and make the coach level side to side. You have one ride height valve at the front of the coach, dead center above the front axle. All that ride height valve does is control the general height of the front of the coach.

Considering that your coach sits at ride height when parked, but the right rear is low when driving, I believe that you need to replace at least the right rear ride height valve. You could check the bolt that connects the ride height valve to the linkage. It could be rusted and seizing the linkage.

I had this problem several years ago, and finally replaced all the ride height valves. Things have been fine ever since.

Jim
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Old 08-07-2014, 09:24 AM   #4
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Air Ride adjustment

If you can find a direct replacement, it is a fairly simple swap.

I replaced my rears recently but bought a different type which required welding the included bracket to the old bracket so that it could install correctly. The PO had put a new style on one side, but it was not installed level and I wanted to make it all right.

The other issue I had was that I did not use the correct sealing compound on the pipe threads and had to take them out again and redo the pipe threads to fix a couple of leaks. All is good now.

You also need to determine the correct ride height to set it so that the ride height is correct to avoid bottoming and driveline alignment issues. See my thread for some more details as the information on the correct ride height setting for my 1994 Signature was not readily obvious.

http://www.irv2.com/forums/showthread.php?t=203558

On mine it was a somewhat messy job and you need to be very careful anytime you get under your coach. If you are not comfortable with getting dirty and securing your coach safely, please use a truck service (rather than a motor home service).

Paul
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Old 08-08-2014, 08:56 AM   #5
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Thanks for all replies. I consider myself above average mechanically and do 85% of my own repairs. So I decided to crawl under and do some serious checks and measurements. I found that the problem was not an out of adjustment height issue, it was a problem with heavy plastic liner covering the wheel well area over the tires. While it still looks good it is bowed in front and rear toward the rear inside tire and makes contact on rough roads or big bumps. Repositioning braces should solve that problem. Thanks again.
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Old 08-09-2014, 07:36 AM   #6
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Glad it worked out to be a simple repair.

Paul
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