Brake Proportioning Valve Leak

Tiny
123987
  • MEMBER
  • 1986 HONDA PRELUDE
  • 250,000 MILES
1986 Honda Prelude SI 2.0 Manual has a brake proportioning valve that is leaking. I cannot find a replacement part from any place, dealer, aftermarket, or junk yard. Do you have any suggestions on alternative parts or where to find the manufactured part? Car is in great shape and would like to keep it operating. Any suggestions appreciated.
Monday, October 24th, 2011 AT 2:49 PM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 33,916 POSTS
Even with much newer cars, this is usually a salvage yard item because it has such a low failure rate. My suggestion is you just haven't hit the right yard yet with a car like yours. I really hesitate to suggest looking for a similar part on a similar car because there are so many variables, particularly weight distribution front-to-rear, that affect the design of the part. Instead, do a search for "Pull-A-Part, then see if they have a site near you. They have about two dozen yards between Ohio, Indianapolis, down to southern Georgia. I've been to 16 of them. Every one is very clean and well organized, and the employees and customers have always been very friendly. Parts are inexpensive too. You pay your buck, throw your tool box in one of their wheel barrows, and you can spend all day there. They can't tell you car colors, options, or which parts have been removed, but they CAN send you an e-mail when they get in a car matching yours. Each yard has over 2,000 cars, and they bring in two rows of new cars every few days. I've found similar yards all over the country but none as well-organized or inexpensive.
Another route isn't exactly as good as a used one. Most vehicles use full bake pressure to the front discs, so you would use an aftermarket proportioning valve on the rears and dial in the amount of brake bias your car likes. Basically under hard braking you don't want the rears locking up
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Wednesday, October 26th, 2011 AT 6:59 PM

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