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Another air leak problem

March 31, 2015, 07:08:50 pm

OK wizards, I've done some searching but no dice. Moby is listing to port. it takes a day or so, and  it seems like the LR settles first, then the LF. it seems logical to me to start looking for a leak at the leveling valve, but so far I haven't found it. The airbags don't seem to be leaking, or the fittings going to them. I tried crawling under the nose and spraying the leveler  manifold. I may have not done a good enough job there and will try again, especially if this tunrs out to be a likely place. I don't know what I'd do without you guys. This forum is worth its weight in gold...

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Re: Another air leak problem

Reply #1 – March 31, 2015, 08:29:08 pm

Jay,
The front may not be leaking. It may come down do to the load put on it when the left rear leaks down. In any case I would eliminate the left rear dump and travel solenoid valves first.
There is a vent hole in the HWH manifold next to the dump (the middle solenoid) solenoid valve.
Take a couple of Q tips and gob some bubble solution on that vent hole. If that valve is leaking that would be at least part of your problem.
Next take the line that goes from the travel (the top solenoid) solenoid to the ride height control valve off at the ride height control valve and submerge the end of the line in bubble solution to check for bubbles caused by a leaking travel solenoid valve.
Use safety blocks/stands before you start !!!!!!!
Probably one of those valves if not a line, airbag or fitting.
A leaking raise (the bottom one) solenoid valve can leak air out of the airbags if the tank pressure is less than airbag pressure but that would cause that corner of the coach to creep up until tank pressure became less than airbag pressure.
A place to start!
JD

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Re: Another air leak problem

Reply #2 – March 31, 2015, 09:00:04 pm

And don 't forget to clean out the dirt daubers from the vents at the solenoid packs.
Gary 

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Re: Another air leak problem

Reply #3 – March 31, 2015, 11:11:12 pm

Jay's 280 has a manual air leveling system, three levers on the floor. This was before Foretravel used HWH computerized air leveling system.

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Re: Another air leak problem

Reply #4 – April 01, 2015, 10:16:02 am

What is this "computerized" of which you speak? 

In any case I'm gonna use up a bunch more dishsoap-n-water out there today..

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Re: Another air leak problem

Reply #5 – April 01, 2015, 10:53:05 am

Doug, You are right I missed that.  Guess the dirt daubers would not affect a manual system.
Gary B

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Re: Another air leak problem

Reply #6 – April 02, 2015, 01:05:34 am

You can also get kids bubble blowing soap to check for leaks.

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Re: Another air leak problem

Reply #7 – April 12, 2015, 05:09:29 pm

I should put this in the "stupid stuff I've done" thread...there is no leak. When we parked on this last trip, I used the levelers, as opposed to not bothering to do this at home. Willya look at that, every morning we are still level, no leakdown in the slightest. But park it on a not quite level driveway in travel mode, and hey wow it tries to level itself til it runs out of air. Duuuhhhh....

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Re: Another air leak problem

Reply #8 – April 12, 2015, 08:40:40 pm

Well, at least the problem is solved!

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