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Old 06-20-2015, 01:14 PM   #47
jgorzitza
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Join Date: Mar 2015
Location: lethbridge, ab
Posts: 69
Re: Restoring 1980 C10 big ten.

Combination / proportioning valve ...... What a Pain. When the rear drums destroyed themselves before it caused the valve to trip to the Forward position. I could not get the stupid thing to reset for the life of me.

Swore at it for about a week trying all kinds of tricks from the interweb.

Including
- Open the front bleeders - Hammer on the brakes. No Go multiple times.
- Bleed rears while holding pin on the valve in, should reset once back side has pressure. - NO GO.
- Take CAP off sensor sending unit and manually move pin back. - NO GO stuck.

Anyways I gave in and bought a new one. This one came in Brass instead of cast iron. So at least I know this one won't rust.

Stupid thing is in such a pain of a position as well, right under the fan shroud on the Frame cross member.

Done and have brakes again... Even took it for a rip around the block.

Some nice magnetic trailer lights hooked up for the back and she is good to go for the move to the new place. At least I don't have to trailer it.
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