Jump to content

Brake proportioning valve questions


Recommended Posts

Hey guys do they make rebuild kits for the proportioning valve? I'm not sure if mine works and I'd hate to get my car completed and then have to replace it.. I looked at the aftermarket pieces but they look different from the factory original. If possible I'd like to clean mine up and restore it. Pro's and con's would be appreciated.

Thank you!  

Link to comment
Share on other sites

I tried replacing mine with one from Inline Tube. It did not work the brake light was on all the time and the machining was bad. I cleaned my old on to the best of my ability and it works. I tested it by loosening a bleed screw and hit the brakes hard to simulate a line break and the brake light came on. I used a coat hanger and put it in where the rear brake line attached and pushed it in and let the spring pressure push back.It moved freely I re-installed and has worked fine.

  • Like 1
Link to comment
Share on other sites

17 hours ago, sbarnette said:

Looks great. What did you use to clean it?

I used Berryman carb cleaner to get all of the gunk off. Then I used Rust-oleum rust dissolver to get it to bare metal. I then painted it with Duplicolor hi temp engine cast iron color paint. I also taped the nut and sending unit fitting off and painted them with Duplicolor caliper stainless steel paint.  

Link to comment
Share on other sites

  • 2 weeks later...
  • 4 years later...
On 9/2/2020 at 7:14 AM, John S said:

I tried replacing mine with one from Inline Tube. It did not work the brake light was on all the time and the machining was bad. I cleaned my old on to the best of my ability and it works. I tested it by loosening a bleed screw and hit the brakes hard to simulate a line break and the brake light came on. I used a coat hanger and put it in where the rear brake line attached and pushed it in and let the spring pressure push back.It moved freely I re-installed and has worked fine.

I know that this is old, however your information about what you said here:

"I used a coat hanger and put it in where the rear brake line attached and pushed it in and let the spring pressure push back.It moved freely I re-installed and has worked fine."

This single handedly made my difficult task a success.

The only extra things that I had to do was purchase another set of shorter brake line wrenches (headers in the way) and heat the 52 year old rear 9/16 nut in order to loosen it.

I also had earlier purchased the tool to stop the valve from locking out the rear brakes again. Lol

Thank you very much for that phenomenal suggestion to re-center the proportioning valve for the rear!!!

Thanks, Matt 

  • Like 3
Link to comment
Share on other sites

  • 2 weeks later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...