normal_post in Proportioning valve cleanup in Wheels, Tires, Brakes, Suspension & Steering Author Topic: Proportioning valve cleanup  (Read 254 times)

Offline Mrbill426

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Proportioning valve cleanup
« on: May 22, 2020, 08:51:21 PM »
I want to clean up this proportioning valve but before I open it up is there anything I should know... do's and don'ts; is anything going to launch across the shop to be lost forever?  :Thud:
Any reassembly tips?





Linkback: https://forum.e-bodies.org/wheels-tires-brakes-suspension-and-steering/12/proportioning-valve-cleanup/16456/

Offline mopartaz

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Re: Proportioning valve cleanup
« Reply #1 on: May 22, 2020, 09:31:17 PM »
I referred to a factory diagram, there are springs in there ,just be careful in dis-assembly. But i could not  dis -assembly fully. I believe a previous post covered this. I pulled mine off the car because it wasnt letting the fluid through. I luckily had another  in storage from a parts car that works. Apparently they arent reproducing that model proprtining valve.

Offline 1 Wild R/T

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Re: Proportioning valve cleanup
« Reply #2 on: May 22, 2020, 09:51:13 PM »
As your un-screw the caps the tension on the springs is released... Not a problem, have fun...

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Re: Proportioning valve cleanup
« Reply #2 on: May 22, 2020, 09:51:13 PM »

Offline Burdar

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Re: Proportioning valve cleanup
« Reply #3 on: May 23, 2020, 05:49:45 AM »
I've got an exploded view of that valve on my work computer.  That will have to wait until Tuesday. 

It's good that your lines are still attached.  If they sit for awhile with no lines attached, they will rust up inside.  Yours looks like it's in great shape.  You can plug the ports and soak it in EvapoRust to clean up the outside.  If the inside is rusted, you can soak it too.

tank047 in Proportioning valve cleanup in Wheels, Tires, Brakes, Suspension & Steering

tank054 in Proportioning valve cleanup in Wheels, Tires, Brakes, Suspension & Steering
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Offline 750-h2

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Re: Proportioning valve cleanup
« Reply #4 on: May 23, 2020, 07:48:41 AM »
With all the ports blocked off I glass beaded mine and then polished it with a soft wire brush on a bench grinder. Looks brand new! :bigthumb:

Offline Mrbill426

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Re: Proportioning valve cleanup
« Reply #5 on: May 23, 2020, 02:03:42 PM »
It looks like it does because I glass beaded it about 8 years ago and painted a clear coat on it which obviously did not hold up considering it has been in a box indoors since.
I will get some of that EvapoRust and start over.  Exploded view would be welcome  :bigthumb:



I've got an exploded view of that valve on my work computer.  That will have to wait until Tuesday. 

It's good that your lines are still attached.  If they sit for awhile with no lines attached, they will rust up inside.  Yours looks like it's in great shape.  You can plug the ports and soak it in EvapoRust to clean up the outside.  If the inside is rusted, you can soak it too.

tank047 in Proportioning valve cleanup in Wheels, Tires, Brakes, Suspension & Steering

tank054 in Proportioning valve cleanup in Wheels, Tires, Brakes, Suspension & Steering

Offline Burdar

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Re: Proportioning valve cleanup
« Reply #6 on: May 26, 2020, 06:52:24 AM »
Here is the exploded view.

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Re: Proportioning valve cleanup
« Reply #6 on: May 26, 2020, 06:52:24 AM »

Offline Mrbill426

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Re: Proportioning valve cleanup
« Reply #7 on: May 26, 2020, 10:23:05 AM »
@Burdar  Ahh very cool thank you :bigthumb:
I ordered some Evaporust and should have it by next week to give it a good dunking.  I am hoping it is not all locked up inside.
That bracket pops off??

 

Here is the exploded view.

Offline Burdar

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Re: Proportioning valve cleanup
« Reply #8 on: May 26, 2020, 11:47:12 AM »
The bracket is riveted on.

Offline Mrbill426

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Re: Proportioning valve cleanup
« Reply #9 on: May 26, 2020, 01:12:11 PM »
Ok, I guess it stays then. 
Thanks

The bracket is riveted on.

Offline Bullitt-

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Re: Proportioning valve cleanup
« Reply #10 on: May 26, 2020, 03:34:08 PM »
@Burdar  Did you replace the O-rings or more?   
I'm aware of these "kits" .. Looks like there's 3 of them available to do everything

https://www.musclecarresearch.com/content/1979-gm-kelsey-hayes-combination-valve-autopsy
.                                               Doin It Southern Syle        9210059a9782f3876586702e3770db8b in Proportioning valve cleanup in Wheels, Tires, Brakes, Suspension & Steering

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Re: Proportioning valve cleanup
« Reply #10 on: May 26, 2020, 03:34:08 PM »

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