Unlikely the pressure regulating valve is not working like it should .. Should at least be considered. I get the rear shoes pretty close to the drum, never have a problem with the rear brakes. How were they adjusted ? were all the friction spots likely lubed with anti-seize.. like where the shoes slide on the backing plates? or every pivot point ? was the parking brake cable adjustment backed off some.. shoes adjusted very carefully, then cable adjustment done ? the original poster could examine the brakes shoes to get an idea about contact area... more contact area the better. they should work. Master cylinder comes to mind ..to at least consider.
On 6/22/2013 9:26 PM, Dennis Haynes wrote: > Rear brakes do a lot more ten just keeping the rear in place, especially on > the Vanagon. Those 10" diameter X 2" wide shoes offer a lot of surface area. > > > New Drum shoes will take a while to seat and provide full braking action. If > the drums are worn oversized there will be less contact area until the shoes > wear at the top so more of the material can contact the drum. As I've > mentioned in the past most of the aftermarket shoes now available for the > Vanagon do not have the proper lining thickness so only part of the shoe > will ever reach the drum. The fix is to shim out the lower shoes rests. > Today I tried a set of Raybestos shoes, (new). Along with new drums I was > only able to add 2mm of shims to the lower rests. Usually I can add 3 or 4, > more with worn out drums. Check the archives. I have written about the > proper set up of the rear brakes a number of times. Set up is critical for > the brakes to work properly, especially for the self-adjusters. > > Dennis > > -----Original Message----- > From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of > Stuart MacMillan > Sent: Saturday, June 22, 2013 10:38 PM > To: vanagon@GERRY.VANAGON.COM > Subject: Re: Rear Brakes > > Rear brakes are there just to keep the rear end from passing the front end > when you brake. Don't know the exact balance, but it's probably over 60% in > the front, that's why they only put discs there. There is also a lot more > metal in the drum to dissipate heat. Sounds normal to me. Others will > comment. > > Stuart > > -----Original Message----- > From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of > Robert Clemmer > Sent: Saturday, June 22, 2013 6:35 PM > To: vanagon@GERRY.VANAGON.COM > Subject: Rear Brakes > > Ok, so I replaced both rear brake cylinders, bled both front and rear. > Have a nice solid pedal. Only problem is now it doesn't feel like the rear > brakes are doing their fair share. In 15 minutes of local traffic, the > front brakes heat up to the point the wheels feel hot while the rears are > luke warm at best. Fronts are not dragging. Going to the UP of Michigan in > two weeks and the car will be heavy. They need to be right. > > > > Car is a 91 2.1 automatic with 258k. Any suggestions or comments. I don't > want to replace parts just for the sake of it. > > > > Thanks, > > > > Bob Clemmer > > Perkasie, PA > |
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