Air Bag Leaks

[james ross]

John
As you suggested I have gone over all the connections with snoop and
find no leaks. Originaly the connection to the driver's side air bag
leaked and I had a go at tightening it but it still leaked. I didn't
want to overtighten as they are plastic so, as it was due for service I
had them check it out. There is a small "o" ring there that had
perished. This repair made the inch a day drop, an inch every two days.
No other bubbles on any of the connections hence the wooden blocks for
storage. The only other thing I can think of is the air storage tank and
the air valve at the base. Could it be the wrong one?

Jim Ross
1976 Edgemont

 

[john szalay]

>John
>As you suggested I have gone over all the connections with snoop and
>find no leaks. hence the wooden blocks for
>storage. The only other thing I can think of is the air storage tank and
>the air valve at the base. Could it be the wrong one?
>
>Jim Ross
>1976 Edgemont
>
>

I did the woodblock trick too at first, then I decided it should not leak
down, I found 2 sites on my rig that leaked, the rotary valves on the dash,
the O-rings had hardened, once those were replaced, then I found a T in the
air line on the frame directly under the drivers seat, its exposed to the heat
from exhaust manifold, a slight snug and that took care of the squat.

IF the airtank itself leaks, it should NOT any effect on the airbags IF
the rotary valves are not leaking. I,m NOT sure about the valves in the
electro-level system. but IF the valves are not leaking, the airtank can
leak down and not affect the bags.

BTW: I also installed an air-pressure gauge on the tank line so that I can
see what is happening to the air system. the guage is mounted along with
an engine vacuum gauge under the drivers side window close to the dash near
where the blue GMC label is normal, its on a small aux panel I made.
Its all out of the way and allows me to monitor two more systems.
I,ve had the pump fail while out on the road and I,ve been redfaced when
someone called me on the CB to ask why my tailend was close to dragging.
It happened once, it will never happen to me again.

The International letter also recommends that all GMC'ers carry a wooden
4"block about 13 in long and a length of All-thread rod to replace the air
bag should it fail, then you can "ride the block" to a repair site.
I did.nt really like the idea of solid wood blocks, so I have made a set
of rubber blocks of the same size, I used hard "die" rubber blocks,
these double as chocks, for when the rig is parked and/or changing a flat.

I,ll try to take a picture of these blocks and send the image to Patrick
perhaps he can post them on the Homepage. I,ve got to take a picture of
my "fans" arrangement as well. If nothing else, I can posted them to
the alt.binaries.pictures.vehicles usenet group.

 

[scott woodward]

>I,ll try to take a picture of these blocks and send the image to Patrick
>perhaps he can post them on the Homepage. I,ve got to take a picture of
>my "fans" arrangement as well. If nothing else, I can posted them to
>the alt.binaries.pictures.vehicles usenet group.

I'd be very interested to see details on both the block/chock and the fan
configurations. I think that details on things of this nature would be a
nice addition to Patrick's site (hint hint).

 

[patrick flowers]

>
> I,ll try to take a picture of these blocks and send the image to Patrick
> perhaps he can post them on the Homepage. I,ve got to take a picture of
> my "fans" arrangement as well. If nothing else, I can posted them to
> the alt.binaries.pictures.vehicles usenet group.

John,

You can either email the images to me or snail mail the photos and I'll
scan 'em.

Patrick
- --
Patrick Flowers
Mailtoatri63

The GMC Motorhome Page
http://www.gmcmotorhome.com