Subaru BRZ 2013 · Service Manual Brake

Brake master cylinder ASSY (RHD model)

Components Removal / installation

BRAKE SYSTEM/PEDAL/BRAKE BOOSTER DEVICE
BRAKE MASTER CYLINDER ASSY (RHD MODEL)
EXPLODED VIEW
REMOVAL
1. Removal of front tire RH
2. Draining of brake fluid
CAUTION:
Do not let brake fluid come into contact with the painted surface. If it happens, wash it out immediately.
3. Removal of front upper suspension-to-cowl brace SUB-ASSY RH (Refer to )
4. Removal of brake master cylinder SUB-ASSY
(1) Operate the brake pedal more than several times and release the vacuum pressure from the brake booster.
(2) Disconnect the brake fluid level warning switch connector from the reservoir.
(3) Using a flare-nut wrench, disconnect 2 brake tubes from the master cylinder SUB-ASSY.
(4) Remove 2 harness clamps, and move the wiring harness toward the engine room bulkhead.
(5) Remove 2 nuts, and disconnect the brake master cylinder SUB-ASSY.
CAUTION:
·The piston comes off from the brake master cylinder SUB-ASSY easily. Therefore, do not hold or pull out the piston. If the piston comes off the brake master cylinder SUB-ASSY, do not reuse it but replace the brake master cylinder SUB-ASSY with new one, because the brake master cylinder SUB-ASSY may malfunction
·Do not give a shock to the piston of the brake master cylinder SUB-ASSY, fix it with a vise, or scratch it.
·Remove the brake master cylinder SUB-ASSY after operating the brake pedal several times and releasing the vacuum pressure from the brake booster.
·Do not tilt the brake master cylinder SUB-ASSY’s piston side below a horizontal position.
·Be careful not to allow foreign matter to stick to the piston of the brake master cylinder SUB-ASSY. If a foreign matter sticks to the piston, remove the foreign matter with a cloth and apply rubber grease all around the outer surface of the piston (sliding part).
·Do not use undesignated oil.
5. Removal of seal SUB-ASSY
(1) Remove the seal sub ASSY.
INSTALLATION
1. Installation of seal SUB-ASSY
(1) Install a new seal SUB-ASSY.
2. Installation of brake master cylinder SUB-ASSY
(1) Install the brake master cylinder SUB-ASSY with 2 nuts.

Standard value:
Tightening torque=13N·m { 133kgf·cm} {9.6ft·lbf}
(2) Engage 2 harness clamps.
(3) Using a flare-nut wrench, connect 2 brake tubes to the brake master cylinder SUB-ASSY.

Standard value:
Tightening torque=19N·m { 194kgf·cm} {14.0ft·lbf}
(4) Connect the brake fluid level warning switch connector.
3. Brake fluid refill (Refer to )
4. Air bleeding of brake master cylinder SUB-ASSY (Refer to )
5. Air bleeding of brake system (Refer to )
6. Brake fluid leak check
7. Brake fluid level check (Refer to )
8. Installation of front upper suspension-to-cowl brace SUB-ASSY RH (Refer to )
9. Installation of front tire RH

Standard value:
Tightening torque=120N·m { 1224kgf·cm} {88.5ft·lbf}