Date: Wed, 24 Mar 2010 13:19:55 -0800
Reply-To: neil n <musomuso@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: neil n <musomuso@GMAIL.COM>
Subject: Re: Proper Brake Pedal Feel/Travel?
In-Reply-To: <71d9cdf91003241226k5d0cfd1dx9a0d5a01ef350e34@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
Thanks for offer Jake.
Mine is ok.
Neil.
On 3/24/10, Jake de Villiers <crescentbeachguitar@gmail.com> wrote:
> Hey Neil, if it turns out that you need a new booster (which I really doubt)
> I have a spare.
>
> On Wed, Mar 24, 2010 at 10:34 AM, neil n <musomuso@gmail.com> wrote:
>
>> On 3/24/10, Don Hanson <dhanson928@gmail.com> wrote:
>> > On Tue, Mar 23, 2010 at 11:58 PM, neil n <musomuso@gmail.com> wrote:
>> >
>> >> Yes. I hear a soft "whoosh" but could be a hiss. Pretty sure that part
>> >> is normal.
>> >>
>> >> Feel of pedal changes when booster vacuum expired. I'm just about
>> >> certain booster is working properly. But.....
>> >>
>> >> I get what you're saying. Check pedal with engine off + vacuum gone
>> >> and see if pedal is sinking. i.e. feels like a failed MC.
>> >>
>> >> Neil.
>> >>
>> >
>> > What you're describing sounds like a faulty MC to me. I replaced the
>> one
>> > in my 84 and a little over a year later (about 20k miles) the new one
>> again
>> > started that same behavior, if I read right what you are feeling. Mine
>> had
>> > no "clunk", though. It simply sank way too low for my peace of mind.
>> Also,
>> > mine would pump up again and then sink slowly under braking
>> > pressure...so
>> > the symptoms may not be exactly what you have.
>> >
>> > Before you 'throw parts" at the problem you might want to go back and
>> > bleed it once again. Be really meticulous with procedure. Be 100%
>> positive
>> > you get all the air out, for sure. Check that your bleeder valves are
>> > in
>> > good condition, that you have a good fit on the tubing that takes the
>> bled
>> > fluid out of the valves, put that hose down into a glass jar and make
>> sure
>> > to keep the end immersed in some fluid as you bleed so that no air can
>> > possibly return through the bleeder valve... If you have *any* doubts
>> about
>> > whether you may have screwed-up during your bleeding procedure...go back
>> and
>> > start over again--Even if it is the very last wheel and the last spurt
>> > of
>> > fluid......Air in the system...any at all..will cause weirdness. You
>> > may
>> > have a speck of dirt somewhere in a valve or opening, too. Use a clean
>> > 'catch jar' and check the fluid that's come out when you finish..
>> >
>> > When I service brakes, I am scrupulously thorough. The brake systems,
>> > while actually pretty simple, are intolerant of mistakes and less than
>> 100%
>> > effectiveness, especially in a vehicle like our Vanagons, can sometimes
>> have
>> > really bad consequences.
>> >
>> > I like to use different color brake fluid when I bleed brakes so that
>> you
>> > can visually see you have fresh fluid all the way to the bleed valve.
>> ATE
>> > is what I use, which comes in Super Blue and Gold colors. Google it or
>> > Pegassus racing has it mail order. In a puzzling situation like you are
>> > encountering, I would bleed the clutch, too...Probably needless, but as
>> > I
>> > mentioned...Scrupulously Thorough..is best, for brake work.
>> >
>> > Don Hanson
>> >
>>
>>
>> Thanks Don. All good tips.
>>
>> Wheel cylinders, calipers almost brand new. Each cylinder and caliper
>> bled at same rate, so I assume no blockage.
>>
>> Fronts bled at a noticeably faster rate. I found this notable as hole
>> in bleeder same ID as rears.
>>
>> No dirt entered system.
>>
>> Different colour fluid? Neat tip. Thanks.
>>
>> Bled clutch again, fluid dirty. No surprise as I only bled that a
>> little recently, that being first time since purchase or Westy.
>> (hangs head in shame. <grin>)
>>
>> With newly built pressure bleeder, watched stream come out of tube on
>> rears. Tube not immersed. But. Flow was steady, no backing up. Hose
>> secure to bleeder.
>>
>> I have a couple things to try first before throwing parts around. :)
>>
>> Thanks very much people.
>>
>> Neil.
>>
>>
>> --
>> Neil Nicholson '81 VanaJetta 2.0 "Jaco"
>>
>> http://tubaneil.googlepages.com/
>>
>>
>> http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines
>>
>
>
>
> --
> Jake
>
> 1984 Vanagon GL
> 1986 Westy Weekender "Dixie"
>
> Crescent Beach, BC
>
> www.thebassspa.com
> www.crescentbeachguitar.com
> http://subyjake.googlepages.com/mydixiedarlin%27
>
--
Neil Nicholson '81 VanaJetta 2.0 "Jaco"
http://tubaneil.googlepages.com/
http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines
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