Air leaking from front when brakes applied

[Curt Sprenger]

Paul,

What you found and determined does not seem right. Post pictures if you can. I looked under our coach this afternoon. I see a 1/8" plastic air line to the cylinder that rotates down the driving light. Above that area on the bottom of the frame rail there are some copper and plastic air lines. None are open as you describe.  


Curt Sprenger
1987 PT38 8V92 "MacAttack Racing"
Anaheim Hills, CA

On Sat, Oct 31, 2009 at 2:35 PM, P & D <"audvid1@gte.net"> wrote:

 

Thanks you all for the assistance.  Got some help today and we
climbed under coach and found a ¼ air line on the driver side front right
behind the fog lights that when you step on the brakes air comes out of that
line and as soon as let off it stops.  After looking at drawings and trying to
figure out where the other end should be connected, by accident we discovered
that if you plug the hose, the coach emergency brake released.  (Good thing we
are on a level lot) and if you un plug it, the emergency brakes stay locked. 
Then we tried it with the emergency brake released and no air came out, so I think
it is releasing the air bypassing the emergency brake so as to not release the
emergency brake.

 

Hope all that made sense, but it appears that is normal
operation, although I never recall hearing that noise before when I stepped on
the brake.

 

Thanks again for all the help

 

Paul & Debbie Potter

Hesperia CA

1987 PT 38

Hotel California II

 

From:
"WanderlodgeForum@yahoogroups.com" [mailto:"WanderlodgeForum@yahoogroups.com"] On
Behalf Of Wayne Kotila

Sent: Monday, October 26, 2009 1:56 PM

To: "WanderlodgeForum@yahoogroups.com"

Subject: Re: [WanderlodgeForum] Air leaking from front when brakes
applied

 

 

Did
you check the rubber hoses to the front brakes? When you step on the brake
pedal air pressure applies your front brakes so you will have air pressure
in the supply hoses to until you take your foot off the brake pedal.
Sometimes from age those hoses will start leaking where the end is crimped on
the hose and if you need to replace them, a farm supply store will carry high
pressure hydraulic hose in different diameters and lengths and have
different end adapters to convert the end connector to what you need. You
should be able to get a new hose and adapters if needed for under $20.00.

Wayne

1996
WB42

 

---

From: ppotter14950
<"audvid1@gte.net">

To: "WanderlodgeForum@yahoogroups.com"

Sent: Sun, October 25, 2009 9:38:25 PM

Subject: [WanderlodgeForum] Air leaking from front when brakes applied



 

Hi there



Today while finishing up Air Force One supplemental braking install for towed
vehicle, had engine off and when applied brakes to test Air Force One and while
pedal was depressed there was a constant air leak up front around the left
front area, but could not find it. Any suggestions on where it might be, will
work on taking front driver side panel open and looking in there, but it is so
tight in there and i dont know what i am looking for so any suggestions would
be appreciated.



Thanks



Paul & Debbie Potter

87PT40 - Hotel California II

Hesperia CA

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