Brake Master cylinder - rebuild or buy rebuilt? - ZR-1 Net Registry Forums

VetteMed · 12-31-2010

I've now bled my brake system 3 times - including bleeding the master cylinder prior to bleeding the 4 wheels, as per the FSM. The pedal sinks right to the floor when pressure is applied. I figure the Master is leaking internally, though I've disassembled it and can find no obvious defective seals. I see rebuilt units for $150-$200, and am tempted to go this route rather than rebuild my original unit. Keep in mind this is the original '91 master cylinder, with 188k miles on it. Comments?

12-31-2010	#1
VetteMed Join Date: Mar 2009 Location: Orlando, FL Posts: 1,821	Brake Master cylinder - rebuild or buy rebuilt? I've now bled my brake system 3 times - including bleeding the master cylinder prior to bleeding the 4 wheels, as per the FSM. The pedal sinks right to the floor when pressure is applied. I figure the Master is leaking internally, though I've disassembled it and can find no obvious defective seals. I see rebuilt units for $150-$200, and am tempted to go this route rather than rebuild my original unit. Keep in mind this is the original '91 master cylinder, with 188k miles on it. Comments?