Air Bag System

[Alex Smith]

Is it normal to hear air escaping from system?

Under the coach, driver's side, just behind the front bumper, is an air
fitting that continually leaks air. I have tried plugging this off but the air
bags didn't fill properly so I removed the plug.

If I shut the engine off and don't purge the air, the front bags leak down in
30-45 min but rear stays up. This just doesn't seem normal.

I'm taking the coach in Monday for some other work. Would appreciate any
information on what to tell the shop folks as they are not really familiar with
BB systems.

Thanks!
Alex Smith
82FC35
Tallahassee

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[Jeff Miller]

This is the vacuum generator (aspirator) for the cruise-control
system in the '79-mid'83 FC. It blows air through a venturi to create
the vacuum.

If it is venting constantly or frequently, you likely have a vacuum
leak, check the vacuum lines at the rear of the engine.

- Jeff Miller
in Holland, MI


--- In WanderlodgeForum@yahoogroups.com, Alex Smith
wrote:
>
> Is it normal to hear air escaping from system?
>
> Under the coach, driver's side, just behind the front bumper, is
an air fitting that continually leaks air. I have tried plugging this
off but the air bags didn't fill properly so I removed the plug.
>
> If I shut the engine off and don't purge the air, the front bags
leak down in 30-45 min but rear stays up. This just doesn't seem
normal.
>
> I'm taking the coach in Monday for some other work. Would
appreciate any information on what to tell the shop folks as they are
not really familiar with BB systems.
>
> Thanks!
> Alex Smith
> 82FC35
> Tallahassee
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam? Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com
>
> [Non-text portions of this message have been removed]
>

[Richard Hayden]

That happened with our '81FC and it had something to do with the cruise control.
I'm sorry I don't have any of the particulars as those were in the days when we
were taking the bird to the BB bus shop for repairs. However, it also went down
in front first even after the audible leak was fixed. As I recall though the
part that produces vacuum for the cruise control was defective. I found where
the air was venting and plugged it but that didn't work. Does that make sense?

Good luck.
Dick Hayden - '87 PT 38 - Lake Stevens, WA

----- Original Message -----
From: Alex Smith
To: wanderlodgeforum@yahoogroups.com
Sent: Saturday, July 29, 2006 5:02 PM
Subject: [WanderlodgeForum] Air Bag System


Is it normal to hear air escaping from system?

Under the coach, driver's side, just behind the front bumper, is an air
fitting that continually leaks air. I have tried plugging this off but the air
bags didn't fill properly so I removed the plug.

If I shut the engine off and don't purge the air, the front bags leak down in
30-45 min but rear stays up. This just doesn't seem normal.

I'm taking the coach in Monday for some other work. Would appreciate any
information on what to tell the shop folks as they are not really familiar with
BB systems.

Thanks!
Alex Smith
82FC35
Tallahassee

__________________________________________________
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around
http://mail.yahoo.com<http://mail.yahoo.com/>

[Non-text portions of this message have been removed]





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[Alex Smith]

Jeff, the coach is in the shop today so I'll ask them to check for a leak. The
air is coming from what looks like where another air line would be attached.
Would this be what the venturi looks like? Thanks.
Alex
82FC35
Tallahassee


Jeff Miller wrote:
This is the vacuum generator (aspirator) for the cruise-control
system in the '79-mid'83 FC. It blows air through a venturi to create
the vacuum.

If it is venting constantly or frequently, you likely have a vacuum
leak, check the vacuum lines at the rear of the engine.

- Jeff Miller
in Holland, MI

--- In WanderlodgeForum@yahoogroups.com, Alex Smith
wrote:
>
> Is it normal to hear air escaping from system?
>
> Under the coach, driver's side, just behind the front bumper, is
an air fitting that continually leaks air. I have tried plugging this
off but the air bags didn't fill properly so I removed the plug.
>
> If I shut the engine off and don't purge the air, the front bags
leak down in 30-45 min but rear stays up. This just doesn't seem
normal.
>
> I'm taking the coach in Monday for some other work. Would
appreciate any information on what to tell the shop folks as they are
not really familiar with BB systems.
>
> Thanks!
> Alex Smith
> 82FC35
> Tallahassee
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam? Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com
>
> [Non-text portions of this message have been removed]
>






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[Alex Smith]

Thanks Richard, I tried the same. And it doen't make sense unless this is just
the way it works. All this information helps.
Alex

Richard Hayden wrote:
That happened with our '81FC and it had something to do with the
cruise control. I'm sorry I don't have any of the particulars as those were in
the days when we were taking the bird to the BB bus shop for repairs. However,
it also went down in front first even after the audible leak was fixed. As I
recall though the part that produces vacuum for the cruise control was
defective. I found where the air was venting and plugged it but that didn't
work. Does that make sense?

Good luck.
Dick Hayden - '87 PT 38 - Lake Stevens, WA

----- Original Message -----
From: Alex Smith
To: wanderlodgeforum@yahoogroups.com
Sent: Saturday, July 29, 2006 5:02 PM
Subject: [WanderlodgeForum] Air Bag System

Is it normal to hear air escaping from system?

Under the coach, driver's side, just behind the front bumper, is an air fitting
that continually leaks air. I have tried plugging this off but the air bags
didn't fill properly so I removed the plug.

If I shut the engine off and don't purge the air, the front bags leak down in
30-45 min but rear stays up. This just doesn't seem normal.

I'm taking the coach in Monday for some other work. Would appreciate any
information on what to tell the shop folks as they are not really familiar with
BB systems.

Thanks!
Alex Smith
82FC35
Tallahassee

__________________________________________________
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around
http://mail.yahoo.com<http://mail.yahoo.com/>

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