« previous next »
Pages: 1 [2]   Go Down

Author Topic: brake issue... could it be the proportioning valve??  (Read 11654 times)

Offline pholliday1

  • Junior Member
  • ***
  • Posts: 632
  • 1990 V3500 Crew Cab
Re: brake issue... could it be the proportioning valve??
« Reply #15 on: January 18, 2013, 09:57:34 am »
The master cylinder is based on certain close tolerances. In a rush to "refurbish" these master cylinders sometimes close enough appears to the motto of some of these companies. My last problem with this issue resulted in a "new" master having tolerances .008 out of spec. which is a football fied of difference.
Logged
VETERAN AND LIFETIME NRA MEMBER. WHAT DO YOU STAND FOR?
1991 V3500 CREWCAB SRW 454TBI GMC
1991 v3500 crewcab SRW 454tbi 480le 6" lift
1990 V3500 crewcab Dana 60 FF 14b 5:38 ratio 40 inch 11" lift
1989 v3500 crewcab 454TBI 5" lift

Offline howlinwolf

  • Registered Users
  • *
  • Posts: 220
Re: brake issue... could it be the proportioning valve??
« Reply #16 on: January 18, 2013, 10:37:48 am »
meh cant argue with that logic.
Logged
78 Chevy Custom Deluxe flatbed, PROPANE POWERED

Offline gildardo01

  • Frequent Member
  • **
  • Posts: 265
  • Newbie
Re: brake issue... could it be the proportioning valve??
« Reply #17 on: January 18, 2013, 11:08:47 am »
Quote from: pholliday1 on January 18, 2013, 09:57:34 am
The master cylinder is based on certain close tolerances. In a rush to "refurbish" these master cylinders sometimes close enough appears to the motto of some of these companies. My last problem with this issue resulted in a "new" master having tolerances .008 out of spec. which is a football fied of difference.
that makes perfect sense, maybe the bore tolerance is out of range and that's why it won´t build pressure for the rear breaks..
Logged
Pages: 1 [2]   Go Up
« previous next »