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70 Disc Brake Metering Valve Stuck - Is It Bad Or Can It be Fixed?

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Old August 21st, 2018, 06:21 PM
  #1  
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70 Disc Brake Metering Valve Stuck - Is It Bad Or Can It be Fixed?

I was cleaning this valve up for a resto I'm doing. After cleaning the rubber cup and wirewheeling the body, I notice the valve seems to be stuck. I can't move the metal stem in any direction - should it be very hard to move or is it stuck? Can it be serviced or should it just be replaced?




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Old August 21st, 2018, 06:37 PM
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The seals are just o-rings. If you can get it apart, you should be able to hone the bore and replace the o-rings. You will likely need to match up the old o-rings with new ones from a source like McMaster Carr.
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Old August 22nd, 2018, 06:14 AM
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I have 1 or 2 if it can't be rebuilt.
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Old August 22nd, 2018, 07:19 AM
  #4  
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Replacement parts
https://www.musclecarresearch.com/gm...ing-seal-kit-2

Instructions
https://www.musclecarresearch.com/gm-1233464-rebuild
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Old August 22nd, 2018, 08:11 AM
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Thanks to all - ordered the rebuild kit and got the diassembly instructions.
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