Master Cylinder Question!!

jstang209

20+ Year Stangneter :roc</strong><span class=
Jun 3, 2004
640
2
18
Stockton 209
I have a real bad leak in the rear to where all my brake fluid is gone by the end of the day, so i would like to cut the flow off to the rear temporarly. Im lookin at the MC and theres 3 lines comming from it. One goes to the front left, front right, and the rear correct?! Which port goes to the rear so i can unhook the line and cap it off?
 
jstang209 said:
I have a real bad leak in the rear to where all my brake fluid is gone by the end of the day, so i would like to cut the flow off to the rear temporarly. Im lookin at the MC and theres 3 lines comming from it. One goes to the front left, front right, and the rear correct?! Which port goes to the rear so i can unhook the line and cap it off?


Nope, One line off the MC goes directly to the front driver's side brake. The other two go to the proportioning valve. From there, one like runs to the passenger side front brake and the other line runs to the rear.

If you were to unhook a line, it would be off the prop valve, but i personally wouldn't do this. Park the car until you can fix it correctly. You definitely don't want to be driving around on the front brakes only.
 
you don't need to cut the flow off to the rear temporarly this is very dangerous your problem needs to be fixed its more than likely a wheel cylinder leaking which can be fixed in 1-2 hrs for $10-$15 a wheel.you can get a repair manual which will tell you step by step instructions on how to fix your stang for $15 at the parts store or free at your local library.
 
driving without rear brakes will cause front brakes to heat up excessively causing brakes to crystalize resulting in loss of braking and cause rotors to warp which causes steering wheel to shake excessively when brakes are applied.this is very dangerous.