Date: Fri, 23 Aug 2002 11:41:32 -0400
Reply-To: 72510.1173@COMPUSERVE.COM
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Helen Fahy <72510.1173@COMPUSERVE.COM>
Subject: Re: Vacuum Brake Booster
Content-Type: text/plain; charset="iso-8859-1"
Hi Jay,
That is an interesting point. So for the manual xmissions, the fluid level
warning mode does not contain information that is not provided even earlier
by the clutch failure.
Helen & Joe Fahy
'87 Westy
----- Original Message -----
From: "Jay L Snyder" <Jay.L.Snyder@usa.dupont.com>
To: <72510.1173@COMPUSERVE.COM>
Cc: <vanagon@GERRY.VANAGON.COM>
Sent: Friday, August 23, 2002 11:15 AM
Subject: Re: Vacuum Brake Booster
>
>
> If you have a 4-speed, low fluid level will cause the clutch to fail
before
> the brakes. It is a shared resevoir, with the take-off point being higher
> for the clutch hydraulics.
>
> Jay
>
>
>
>
> Helen Fahy <72510.1173@COMPUSERVE.COM>@gerry.vanagon.com> on 08/23/2002
> 11:10:46 AM
>
> Please respond to 72510.1173@COMPUSERVE.COM
>
> Sent by: Vanagon Mailing List <vanagon@gerry.vanagon.com>
>
>
> To: vanagon@GERRY.VANAGON.COM
> cc:
> Subject: Re: Vacuum Brake Booster
>
>
> I picked up my Bentley and went back through the electrical diagrams for
> other Vanagons and found that the air cooled, diesel as well as the '83 &
> '84 water cooled digijet models did use the three terminal brake pressure
> sensor to activate the brake warning light. This warning functionality,
> internal master cylinder seal failure, was dropped starting with the '85
> Digijet models.
>
> The models listed above with the three terminal brake sensors also had the
> parking brake actuate the brake warning light. From '85, the two terminal
> brake pressure sensors, the internal master cylinder seal failure mode was
> dropped in favor of a brake fluid level sensor.
>
> As my master cylinder did have an internal failure, I would prefer to add
> this functionality back into my Westy. Has anyone done this? Is brake
> fluid loss a more common failure mode than the internal seal failure of
the
> master cylinder?
>
> Thanks,
> Helen & Joe Fahy
> '87 Westy
>
> ----- Original Message -----
> From: "Timothy Hannink" <tjhannink@YAHOO.COM>
> To: <vanagon@GERRY.VANAGON.COM>
> Sent: Friday, August 23, 2002 9:30 AM
> Subject: Re: Vacuum Brake Booster
>
>
> >
> > If brake fluid has been leaking into the booster, I
> > would replace it. If not, it should work for a while
> > longer. The brake booster in a Vanagon lives a fairly
> > sheltered life compared to most vehicles since it's
> > located inside the van instead of being in the engine
> > compartment.
> >
> > You will need to remove the entire dashboard to remove
> > the booster, you only need to remove the instrument
> > panel to R&R the MC. If the booster does require
> > replacement later, it can be R&Red without
> > disconnecting the hydraulic lines from the MC, so that
> > simplifies the procedure.
> >
> > I would buy a new German MC and not mess with
> > rebuilding my old one.
> >
> > Good luck,
> >
> >
> >
> > =====
> > Tim Hannink
> > Goldibox - 1987 Vanagon Camper, Wolfsburg Edition
> > Winter Park, Florida
> > http://home.earthlink.net/~tjhannink/
> > http://groups.yahoo.com/group/wolfsburg_campers
> > http://photos.yahoo.com/tjhannink [Vanagon] Album
> >
> > __________________________________________________
> > Do You Yahoo!?
> > Yahoo! Finance - Get real-time stock quotes
> > http://finance.yahoo.com
>
>
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