RE: [Chrysler300] Re: brake assist

["Rich Barber" <c300@xxxxxxx>]

Don't all/most power brake boosters have a diaphragm inside?  With vacuum on
one side and atmospheric pressure on the other?  I had to have the booster
in my 1955 C300 rebuilt and found a big tear/hole in the diaphragm to the
point of negligible boost.

I understand evaluating braking of original old Chrysler 300's can be
problematic, but if braking has deteriorated, a rebuild of the booster may
be indicated and appropriate.  The leak may be internal within the booster.
A mechanic's stethoscope may help find any vacuum leak.

C-300'ly,
Rich Barber
Brentwood, CA

-----Original Message-----
From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On
Behalf Of richard_e_osborne
Sent: Saturday, May 02, 2009 4:14 PM
To: Chrysler300@xxxxxxxxxxxxxxx
Subject: [Chrysler300] Re: brake assist

David,

I assume the idle increases when the pedal is depressed? This would point
towards a vacuum leak. I would start at the intake manifold where the tee
screws into the manifold, make sure the hose is tight and not cracked where
it bends going into the tee. The G has a vacuum reservoir tank inside the
left from fender behind the battery tray. There are 2 larger diameter hoses
going into and out of this, each of these connections should be checked. 

My 2 cents. I'm off.

Richard Osborne

--- In Chrysler300@xxxxxxxxxxxxxxx, "david shapiro" <dkshapiro@...> wrote:
>
>   Hey all,
>  
>      Should the idle fluctuate on my G when I depress
> the brake pedal, I think not but am not sure. Does that 
> signify a vacuum leak??
>     Thanks,
>                 David Shapiro
> 
> [Non-text portions of this message have been removed]
>




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