Questions about using adjustable proprtioning valve. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

johnymac · 06-10-2002, 11:33 AM

I have just converted my truck to power disc brakes. 1967 C10.
I have replaced the old proportioning value with a Wilwood adjustable one.

I am curious, took a wire off the old proportioning valve. Thinking this must be a low pressure valve. Not sure if I should try and buy some kind of a replacement. Figured I had better ask before I finish with the brake lines.

Has anyone replaced stock prop valve for and adjustable and found a solution for this ?

Any suggestions ?

Thanks much!!

rico_bob · 06-12-2002, 04:00 AM

I think you have it almost right. Your wire off the old valve is for a brake warning light. Unless you specified to have this in the Wildwood valve - they didn't make provision for it. Chances are you would never see the warning come on from the original valve anyway. These were installed as "idiot light" devices for little old ladies who don't know how to check the master cylinder to see if the fluid is where it is supposed to be. Matter of fact, they probably don't even know what a master cylinder is! LOL
rico_bob

Burlinator · 06-12-2002, 11:40 AM

my master is full and the light will NOT GO OFF

johnymac · 06-12-2002, 12:14 PM

I have been calling around, looks like no one sells the value that would shut the low pressure light off, if they did have to wire into both fron and rear lines, so I think I will remove the light from the back of the dash.

Thanks to call that have replied to this.

06-10-2002, 11:33 AM	#1
johnymac Registered User Join Date: Mar 2001 Location: Dover, NH USA Posts: 194	Questions about using adjustable proprtioning valve. I have just converted my truck to power disc brakes. 1967 C10. I have replaced the old proportioning value with a Wilwood adjustable one. I am curious, took a wire off the old proportioning valve. Thinking this must be a low pressure valve. Not sure if I should try and buy some kind of a replacement. Figured I had better ask before I finish with the brake lines. Has anyone replaced stock prop valve for and adjustable and found a solution for this ? Any suggestions ? Thanks much!! Last edited by johnymac; 06-10-2002 at 09:50 PM.

06-12-2002, 04:00 AM	#2
rico_bob "Treasure the Ride" Join Date: Nov 2001 Location: Mid Michigan, Harrison Michigan, USA Posts: 682	I think you have it almost right. Your wire off the old valve is for a brake warning light. Unless you specified to have this in the Wildwood valve - they didn't make provision for it. Chances are you would never see the warning come on from the original valve anyway. These were installed as "idiot light" devices for little old ladies who don't know how to check the master cylinder to see if the fluid is where it is supposed to be. Matter of fact, they probably don't even know what a master cylinder is! LOL rico_bob __________________ If you think you can you're right. If you think you can't you're still right. Trucks: '56 SWB; '57 SWB; '63 C-10 Current projects: 1963 Long Fleetside for the wife! '56 for the daughter. Visit us at: www.ricos-rods-and-relics.com Last edited by rico_bob; 06-12-2002 at 04:04 AM.

06-12-2002, 11:40 AM	#3
Burlinator Just Another Crazy Canuck Join Date: Dec 2000 Location: Richmond,British Columbia Canada Posts: 1,228	my master is full and the light will NOT GO OFF __________________ 1985 454/465/205, 38.5x11-16BOGGERS soon to be installed: 14bDETROIT,Edelbrock Performer cam,intake and valve springs,Comp roller tips,MSD HEI

06-12-2002, 12:14 PM	#4
johnymac Registered User Join Date: Mar 2001 Location: Dover, NH USA Posts: 194	I have been calling around, looks like no one sells the value that would shut the low pressure light off, if they did have to wire into both fron and rear lines, so I think I will remove the light from the back of the dash. Thanks to call that have replied to this.



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