BRAKE MASTER CYLINDER INSPECTION


  1. INSPECT AND ADJUST BRAKE BOOSTER PUSH ROD

    Note

    Make an adjustment with no vacuum in the brake booster assembly. (Depress the brake pedal several times with the engine stopped.)

    Tech Tips


    • Adjustment of the brake booster push rod is required when the brake master cylinder sub-assembly is replaced with a new one.


    • Adjustment is not necessary when the removed brake master cylinder sub-assembly is reused and the brake booster assembly is replaced with a new one.


    1. Apply chalk to the tip of the accessory tool.

      Tech Tips

      An accessory tool is enclosed with a new brake master cylinder sub-assembly.

    2. A0161XCE01

      Place the accessory tool on the brake booster assembly.

    3. Measure the clearance between the brake booster push rod and accessory tool.

      Standard clearance
      0 mm (0 in.)

      Tech Tips

      Adjust the clearance in the following cases:


      • If there is a clearance between the accessory tool and the shell of the brake booster (floating accessory tool), the push rod is protruding too far.

      • If the chalk does not stick on the tip of the brake booster push rod, the push rod protrusion is insufficient.

    4. A0160UOE01

      If the clearance is not as specified, adjust the push rod length by holding the rod using SST and turning the tip of the rod using a socket driver (7 mm, 0.28 in.).

      SST
      09737-00020

      Tech Tips

      Check the push rod clearance again after adjustment.