BRAKE MASTER CYLINDER INSPECTION


  1. CHECK AND ADJUST BRAKE BOOSTER PUSH ROD

    Note

    The brake booster interior must not be a vacuum when adjusting the booster. Stop the engine and depress the brake pedal several times until there is no vacuum in the booster.

    Tech Tips

    Adjust the booster push rod when the master cylinder is replaced with a new one. Adjustment is not necessary when the master cylinder is reinstalled and the booster is replaced with a new one.


    1. A01J5OEE05

      Set SST on the master cylinder and lower the rod of SST until it just touches the piston.

      SST
      09737-00013

      Tech Tips

      SST 09737-00012 can also be used.

    2. Apply chalk to the flat tip of the rod of SST. Turn SST upside down and measure the clearance between the brake booster push rod and SST.

      Standard clearance
      0 mm (0 in.)

      If there is clearance between the main body of SST and the shell of the brake booster, the push rod is protruding too far. If the chalk does not stick to the tip of the brake booster push rod, the push rod protrusion is insufficient.

    3. A01J690E01

      If the clearance is not as specified, adjust the length by holding the rod using SST and turning the tip of the rod using a 7 mm socket driver.

      SST
      09737-00020

      Note

      Check the push rod clearance again after adjustment.