What evidence do you have that these problems are from the rear rather than the front? Can you feel any pulsing when you gradually pull the parking brake while moving? Is there any steering wheel movement that accompnies the pulsing? In the past fifty years or so. I have never experienced pulsing that was traced to rear drums, but many cases caused by front rotors. "Squishy" indicates air in the system somewhere. A "complete bleed" is not always complete. If the bleed screw used is not at the very top of the caliper chamber, a bubble can remain. Sometimes loosening the brake line fitting at the caliper is productive. A different bleeding method may work better. Pressure bleeding vs. pumping or vice versa, etc. Pulsing indicate warpage, uneven thickness of rotor or non-unform friction. I recently read an artical on a brake tech website that said that many cases of pulsing attributed to warpage are actually due to uneven friction, expecially after a vehicle has been unused for a time. Maybe sanding the surface would help remedy this? Good luck, HTH Larry A.
On Wed, Apr 30, 2014 at 11:23 PM, Geneva Saint-Amour < genevasaintamour@hotmail.com> wrote: > I wrote a week ago about a brake job that was not giving good results. It > is still making us scratch our heads and here is the info.New brake shoes > (2nd set), new brake drums (2nd set) , new wheel cylinders and fully bled > brakes. Still pulsing on pedal upon compression and first press is very > squishy. Ideas? |
Please note - During the past 17 years of operation, several gigabytes of
Vanagon mail messages have been archived. Searching the entire collection
will take up to five minutes to complete. Please be patient!
Return to the archives @ gerry.vanagon.com
The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.
Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.