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Topic: Air usage while under way. (Read 1738 times) previous topic - next topic

Re: Air usage while under way.

Reply #20 –
Thanks Scott, good ideas.  I stopped off at MOT on my drive down(in my car) and chatted with Mike abit.  Found out that the top gage is the left front tank and the bottom is the right, which supplies the rear suspension.  He said to check the ride height limiters for the bottom rubber covers, and also the regulator between the two tanks, which I will do when I get home.  Both gages go to same limits; 125 on the top to about 105 before the cycle, and both will charge to 125 and remain there when at idle.  However, after shut down, they are around 60 within 2 hours or so, and will go to zero within 24 hours.

Re: Air usage while under way.

Reply #21 –
Sounds like you do have a leak. The hard part will be finding it. When it gets bad enough you'll hear it, then you can fix it. Don't be afraid of it though. It's probably gonna be an easy fix when you do find it. Even if it's an airbag you can fix it in a few hours by yourself in a campground or even on the side of the road. I've already replaced two of my airbags by myself in a campground. The most difficult airbag on my coach took three hours to replace, mostly because I'd never done one before. The easy one took about an hour. Foretravel says it takes 20 minutes... guess I'll never be able to get a job there! haha

Re: Air usage while under way.

Reply #22 –
Mike, there are many areas that can cause that kind of leak if it is not a bag or something obvious. Sounds to me to be as I found the tank check valves maybe allowing air to go back thru the system. Both dry tanks have them and they screw diectly into the end of tank and look like large nuts. I highly suggest you disconnect the 3/8  or 1/2" lines coming too them and get a large wrench on the hex flats on the one furthest away from the tank. Undo it and carefully take it apart. There is a spring and seat in there and if you find a lot of crud in there check the face of rubber seal and see if it has been seating good. Clean it all up good and put back. Do both tanks. The other major culprit is the sliding floor cylinder. That is a tough one to get too. Soap the end of it and I bet you have a nice show of large bubbles. Major leaky item. I posted a couple of leaks I found and how to fix that slide cylinder.
My air emptied like yours but now it stays good for 3 weeks. It has gone down to 50 in 21 days. Pretty good.
John H

Re: Air usage while under way.

Reply #23 –
I think I'm going to get a stethoscope and listen to every part of my air system. Has anyone tried that? Can you hear the leaks that way?

Re: Air usage while under way.

Reply #24 –
I have used an industrial stethoscope to find an underground water leak. This was a low pressure leak and it took quite a bit of searching to finally locate.  Before someone says water and air aren't the same, I'm just saying that I found a water leak.

Re: Air usage while under way.

Reply #25 –
There are other sound analysis machines out there, cant recommend a particular one, but some homework may just yield the right thing for this task.  Have a great day  ----  Fritz