Brake Master Cylinder: Testing and Inspection

MASTER CYLINDER INSPECTION





1. Set the Special Service Tool (SST) as shown, and tighten the nut to the specified torque.
Tightening torque
9.9 - 15.6 Nm (100 - 160 kgf-cm, 87 - 138 inch lbs.)
2. Turn the adjusting bolt until gap A is 21 mm (0.83 inch).





3. Install a radiator cap tester and the SST to the front port on the master cylinder. Apply air into the master cylinder and verify that the air pressure does not build up.
4. Tighten the adjustment bolt on the SST until gap A becomes 11 mm (0.43 inch). Raise the air pressure to 49 kPa (0.5 kgf.cm2, 7.1 psi) and verify that the pressure is held for more than 5 seconds.
5. Check the rear port on the master cylinder using the same procedure.