[Vwdiesel] Brakes ------ ( repair to REAR Rabbit brakes ) a

[Shawn Wright]

Check the rear proportioning valve, driver side, near front of trailing arm. I'm 
not sure that it would cause this problem, but it is the one component that I 
had to replace a few years back, due to a leak, and virtually no braking 
occurring on the rear. I got one from a wrecker - the new part is expensive.

On 8 Jun 2004 at 7:38, Ethan Vos <ethan.vos at sympatico.ca> wrote:

> I didn't bench bleed the master but it came off another car.
> 
> I will double check the rest.
> 
> Ethan
> 
> 
> McCanless, James wrote:
> 
> > Some of this may be redundant but here goes. 
> > 
> > Did you bench bleed the MC prior to installation? 
> > 
> > When bleeding system start the farthest from the MC and work your way
> > toward it, i.e., RR, LR, RF, LF on a LHD vehicle. 
> > 
> > You can check the MC by plugging the ports and seeing if you have
> > pressure.
> > 
> > On the discs, where there are hoses, you can disconnect the hose and
> > clamp it off with suitable tool (vise grip) to see if you have pressure.
> > 
> > Work through it systematically.
> > 
> > Troy
> > 
> > -----Original Message-----
> > From: vwdiesel-bounces at vwfans.com [mailto:vwdiesel-bounces at vwfans.com]
> > On Behalf Of Ethan Vos
> > Sent: Tuesday, June 08, 2004 7:14 AM
> > To: H.Hagar
> > Cc: vwdiesel at vwfans.com
> > Subject: Re: [Vwdiesel] Brakes ------ ( repair to REAR Rabbit brakes ) a
> > 
> > 
> > Good timing on this subject.
> > 
> > I have been working with the rear brakes on my 92 TD for almost a week.
> > 
> > I can't get a brake pedal.
> > 
> > I replaced the shoes and the LR wheel cylinder. The shoes are adjusted 
> > as tight as I can get them, which is a slight drag on the drum. I can 
> > turn the drums by hand without the wheel on.
> > 
> > I do not think that there is any air in the system.
> > 
> > When I pump the brakes for the first time, I get a sound like a spring 
> > letting go from the brake booster master cylinder area. Two or three 
> > pumps and the noise stops. After replacing the shoes and wheel cylinder,
> > 
> > the pedal would pump up and then fade, so I replaced the master.
> > 
> > One thing I noticed is that with the brake applied I can still turn the 
> > rear drums without the wheels on.
> > 
> > Where do I look next? Could the adjuster bar be worn? It looks like it 
> > could be. Is it possible that there is still air trapped somewhere?
> > 
> > I know I'm missing something simple.
> > 
> > Ethan
> > 
> > 
> > 
> > 
> > H.Hagar wrote:
> > 
> >>The mallet trick. :    
> >>
> >>How to use the mallet. ----- it is used to shift shoes up and down and
> > 
> > 
> >>left and right . To facilitate easy removal and installation of 
> >>springs.
> >>
> >>After taking the two upper bolts from axle take whole assembly and put
> > 
> > 
> >>on workbench.
> >>
> >>Tap axle away from backplate.       Loosen two screws holding cylinder
> >>(do not remove now)
> >>
> >>With plate-- shoes towards you move handbrake lever as far towards 
> >>front (of car) as you can.  If done right it will lock in place and 
> >>cylinder can now be removed.
> >>
> >>Then we release handbrake lever by tapping gently in the right place.
> > 
> > Hang on to
> > 
> >>it or keep fingers away from nipp.   Remember the pushbar spreads the
> > 
> > shoes to
> > 
> >>remove cylinder so the spring up top is in tension.
> >>Remove the two keepers and springs from middle of shoes.
> >>
> >>Then use mallet to drive shoes up or down till bottom comes off bottom
> > 
> > 
> >>pushblock . That releases tension on bottom spring.Simply remove using
> > 
> > 
> >>fingers.
> >>
> >>Rest is straight forward.    
> >>
> >>Hagar.
> >>
> >>Assembly instructions may follow. 
> >>_______________________________________________
> >>Vwdiesel mailing list
> >>Vwdiesel at vwfans.com http://www.audifans.com/mailman/listinfo/vwdiesel
> >>
> >>
> > 
> > _______________________________________________
> > Vwdiesel mailing list
> > Vwdiesel at vwfans.com http://www.audifans.com/mailman/listinfo/vwdiesel
> > 
> > 
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> 

--
Shawn Wright
http://Zuiko.sls.bc.ca/swright
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