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Re: Pulsating Brake Pedal

To: Russ & Lee <rulee@motion.net>,
Subject: Re: Pulsating Brake Pedal
From: RWM <RWM@rwmann.com>
Date: Sun, 06 Oct 2002 10:59:12 -0400
Daytime look at the brake master reservoir suggests some fluid loss (though
to where is uncertain; no leaks).  Pressing pedal while reservoir is open
shows a spurt of fluid into reservoir.  Master cylinder rebuild time, I
presume?  Still don't think this explains dragging brakes and jacking,
though.

- Bob

RWM wrote:
> 
> No, standard 3.9 from a 1600.
> 
> - Bob
> 
> Russ & Lee wrote:
> >
> > what kind of rearend LSD?
> > Russ Southwell 70 1600
> >
> > RWM wrote:
> >
> > >Had an odd occurrence of dragging then pulsating rear brakes last night.
> > >Haven't yet had a chance to pull things apart.  Wondering if the 
>description
> > >of symptoms rings a bell with anyone.
> > >
> > >Just cruising along 35-40 mph in traffic, went for a 3-2 shift and as I
> > >clutched, noticed the rear brakes (initially thought it was right rear) 
>were
> > >clearly dragging.  I pulled over had a bit of a pulsating pedal, checked 
>the
> > >parking brake was off (it was off), pumped the brakes (solid pedal), pulled
> > >back into traffic and motored off.  Half-mile later, as I slowed for a
> > >light, I got a severe pulsating brake pedal, and what seemed like a jacking
> > >motion from the rear.  Really odd.
> > >
> > >Nursed it home, during which I clearly smelled burning rubber and another
> > >unfamiliar smell, put it away and did a few obvious checks.  No fluids
> > >missing at the brake master reservoirs, no fluids evident on the wheels or
> > >under the car.  Hubs and wheels were not unusually warm.  Nothing dangling
> > >under the car.
> > >
> > >I'm going to pull the rear wheels and drums, of course, but anything else I
> > >should consider?  U-joints perhaps?
> > >
> > >Thanks in advance for the remote diagnosis.
> > >
> > >- Bob Mann, '69 2000 Solex, suddenly under the weather...
> >
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> 
> --
> - R.W. Mann & Company, Inc.   >>  Airline Industry Analysis
>   Port Washington, NY  11050  >>  tel 516-944-0900, fax -7280
>   mailto:RWM@RWMann.com       >>  URL http://www.RWMann.com/
> 
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-- 
- R.W. Mann & Company, Inc.   >>  Airline Industry Analysis
  Port Washington, NY  11050  >>  tel 516-944-0900, fax -7280
  mailto:RWM@RWMann.com       >>  URL http://www.RWMann.com/

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