[AT] Chevroplet 8500 Air brake issue

[Cecil Bearden]

No access.   The fittings are on the firewall behind the air conditioner 
duct ( a hard Plastic) aboveand just right of the steering and brake 
reinforcements.  The one line I cannot determine where it goes, makes a 
bend across the top of this reinforcement and maybe gores to a low 
pressure buzzer.  It tees off of the line out of the park valve.

Cecil

On 1/18/2022 8:53 PM, BRUCE MAHR wrote:
> Have you tried spraying soapy water on things to find it?
>
> Bruce Mahr
>
> ----- Original Message -----
> From: Cecil Bearden <crbearden at copper.net>
> To: at at lists.antique-tractor.com
> Sent: Tue, 18 Jan 2022 19:35:31 -0500 (EST)
> Subject: Re: [AT] Chevroplet 8500 Air brake issue
>
> I have an air leak under the dash in my C8500 1998 Chevrolet tractor
> mover.  I have the instrument cluster out and can barely reach to the
> fittings in the firewall.  Ther eis one line that goes from the parking
> valve to over the top of the steering column to who knows where.  My
> leak is somewhere beyond the air valve.  It really hisses.  I have
> replaced nearly all the fittings last spring on this thing.  I have an
> alcohol tank ordered.  Those quick connect fittings are a pain in the
> butt...  Does anyone have any experience with these..  Maybe Steve
> W..???  The factory service manual is $300+, and I have tried to
> download 2 times today and it failed.  I will wait until tonight after
> midnight to download...
> Cecil
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