

| Subject: | Re: Master cylinder question |
| From: | David Kao |
| Date: | Tue, 27 May 2008 09:19:59 -0700 |
I believe I assembled everything correctly. It was the adjustment that might not be right. I will redo the adjustment and bleed it again. Thanks. David --- Zoran Mladen <zmaninco@YAHOO.COM> wrote: > In both cases I think you guys need to check your rear brake adjustment / adjusters. The rear > brakes are self adjusting. If they are not working, you get more and more gap in the rear > brakes causing the pdeal to go lower and lower. > Often times, people do not assemble the rear brakes correctly. The position of the upper > springs and the brake adjuster are important - if assembled incorrrectly, they will not work. I > would check this first. > Z > > > ----- Original Message ---- > From: David Kao <dtkao0205@YAHOO.COM> > To: vanagon@GERRY.VANAGON.COM > Sent: Tuesday, May 27, 2008 12:54:37 AM > Subject: Re: Master cylinder question > > I am no expert in Vanagon brakes. But I did two brake jobs on my two Vanagons > recently. The result of the fist brake job wasn't great. My pedal often passes > 1/2 point to kick in. But if I pump the pedal once then it will kick in at the > beginning 1/4 point. I bled the brake twice but no improvement. I had no idea > why. > > My 2nd brake job recently was far more successfully. I put in new brake shoes > and cylinders. Adjusted the shoes back and forth to make sure proper tightness. > Then bled the brake once. The result was great. Parking brake level is perfect > and brake pedal is firm and will kick in at the beginning 1/4 depth. > > Nothing was done to the front brakes as the pads all looked thick enough. So > one brake job was not good but the other great. The difference I think is in the > adjustment of the brake shoes. I believe it affects the pedal. > > Today I did another brake job for a Honda Accord. I put in new brake shoes and > new cylinders. I found that Honda Accord's rear drum brakes have no holes for > adjusting the star wheel. SO there is no way I could adjust the shoes the way I did > on the Vanagon. After bleeding the brake it turns out that the pedal also will only > kick in beyond 1/2 pedal depth. Not good. > > Based on these I tend to believe that adjustmnent of the shoes is critical for the > pedal to work right. Again I am no expert. Any comments from experts out there > please? > > David > > > --- Troy <colorworks@GCI.NET> wrote: > > > Hi folks: > > > > I'll stop talking about battery woes and move on to a new subject;) > > > > Just finished up installing a new master cylinder on my 89 Westy as well as an Audiovox cruise > > control. Everything went fairly smoothly, and my homemade brake bleeder worked great. It was > fun > > to finally get a chance to try it out. Puzzling thing to me is the brakes are now > > grabbing/engaging towards the end of the pedal travel, whereas prior to changing the cylinder > > out they engaged a little bit sooner, but would fade. I've got really good pressure, pedal is > > not spongy, so am I looking at a rear brake adjustment? Just can't figure out why a master > > cylinder would change where the brakes would engage. > > > > From what I recall about adjusting the rear brakes, the star adjuster is turned until the > brakes > > just scrape. Someone mentioned then applying the parking brake as well as pumping up the brake > > pedal to center the pads, and then readjusting. Is this the correct procedure? I've only ever > > tried this once. > > > > I like to have the brakes engage at the first third of travel instead of the last third, and I > > believe pedal height comes form the rear brakes adjustment, but would like confirmation of > this. > > > > Thanks, > > > > Troy > > > > > >
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