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#1 |
Registered User
Join Date: May 2000
Location: Storm Lake, Ia
Posts: 1,449
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proportioning valve reset
Lost pressure on rear line and it drained the front reservoir on master .
Brake light came on so I know the prop valve is working. How can I reset the proportioning valve to allow fluid to back lines again?
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#2 |
20' Daredevil (Ret)
![]() Join Date: May 2003
Location: Jefferson State
Posts: 13,643
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Re: proportioning valve reset
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- Mike - 1972 K20 LWB 350/350/205 RIP El Jay |
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#3 |
Turbo Guy
Join Date: Jan 2005
Location: Calgary Alberta
Posts: 353
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Re: proportioning valve reset
First try fixing the leak and tightening all the bleed valves add the fluid and pump the ever lovin beeswax outa the pedal and let it sit for a while probably a couple hours and then vacum bleed from the furthest point from the master working towards it. Had the same problem on a 90 with rabs my mechanic friend suggested this and it worked. hope it helps
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1972 Gmc Custom swb intercooled twin turbo 327 10.5-1 and 12 lbs of boost, Nodular iron case super t-10 4 speed with a blowproof bellhousing, 12 bolt eaton posi soon to have moser axles. 1998 Honda CR250 fully ported, case matched, milled head, vortexed carb and revalved suspension but don't forget the woody woodpecker decal kit! Things I've broken so far: 12 bolt diff saginaw 4 spd many, many pieces Aluminum case Super t-10 4 spd |
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#4 |
Registered User
Join Date: Sep 2005
Location: 9000' Mountain Man
Posts: 326
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Re: proportioning valve reset
If the prop. valve is working properly, and everything else is ok, they will automatically reset by pressing on the brake pedal. Now Ford's are a different story.
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#5 |
Junior Member
Join Date: Feb 2006
Location: Midlothian virginia
Posts: 57
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Re: proportioning valve reset
remove the brake pressure switch. look in the hole and you will see a small rod. there should be a groove in the rod. most likely it has moved either front to back. take a small pick and move the rod to the center position and reinstall the switch.
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