Bleeding brakes with prop valve different? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

weever82 · 10-11-2012, 07:17 PM

Swapping out my rear wheel cylinders and wondering if I need to do anything different when I bleed the brakes because I have an adjustable prop valve by my rear drums? Need to reset before bleed or after...? I have discs up front if that changes things.

Thanks for the input.

Weev-

GMCJOE · 10-11-2012, 07:39 PM

Just leave the adjustable prop valve be. As long as you have it where it flows fluid to the rear, you should be good. If you haven't adjusted it before hand, I would say just put it 50/50 then back it off to the way you want them after bleeding. Then pump up and bleed the left rear first, right rear second, front right third, and drivers front last.

GMCJOE · 10-11-2012, 07:43 PM

If you can, put the adjustment on the proportioning valve to 70 front and 30 rear. That about the way you should run it.

10-11-2012, 07:17 PM	#1
weever82 Registered User Join Date: Sep 2012 Location: Queen Creek, AZ Posts: 551	Bleeding brakes with prop valve different? Swapping out my rear wheel cylinders and wondering if I need to do anything different when I bleed the brakes because I have an adjustable prop valve by my rear drums? Need to reset before bleed or after...? I have discs up front if that changes things. Thanks for the input. Weev- __________________ Weev- Life's tough...... It's even tougher when your stupid - John Wayne

10-11-2012, 07:39 PM	#2
GMCJOE Registered User Join Date: Aug 2012 Location: Junction City, KS Posts: 782	Re: Bleeding brakes with prop valve different? Just leave the adjustable prop valve be. As long as you have it where it flows fluid to the rear, you should be good. If you haven't adjusted it before hand, I would say just put it 50/50 then back it off to the way you want them after bleeding. Then pump up and bleed the left rear first, right rear second, front right third, and drivers front last. __________________ Joseph Joe's 69 GMC http://67-72chevytrucks.com/vboard/s...d.php?t=543253 1969 GMC SWB-350 SBC 700R4 2013 Ram 2500 CC Laramie Longhorn Edition-6.7 PPEI EFI Live CSP5 5” ProFlo Exhaust

10-11-2012, 07:43 PM	#3
GMCJOE Registered User Join Date: Aug 2012 Location: Junction City, KS Posts: 782	Re: Bleeding brakes with prop valve different? If you can, put the adjustment on the proportioning valve to 70 front and 30 rear. That about the way you should run it. __________________ Joseph Joe's 69 GMC http://67-72chevytrucks.com/vboard/s...d.php?t=543253 1969 GMC SWB-350 SBC 700R4 2013 Ram 2500 CC Laramie Longhorn Edition-6.7 PPEI EFI Live CSP5 5” ProFlo Exhaust



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