Replacement

1 . Remove the master cylinder (page 19-16).

2. Disconnect the vacuum tube from the brake booster.

3. Remove the cotter pin and the joint pin.
4. Remove the brake booster mounting nuts.
5. Remove the brake booster.

6. Install the brake booster in the reverse order of removal.

7. Install the master cylinder (page 19-16).

Pushrod Clearance Adjustment

NOTE: Master cylinder pushrod-to-piston clearance must be checked and adjustments made, if necessary, before installing master cylinder.

1. Set the special tool on the master cylinder body; push in the center shaft until the top of it contacts with the end of the secondary piston and lock it with locknut.

2. Without disturbing the adjusting bolt's position, install the special tool upside down on the booster.

3. Install the master cylinder nuts and tighten to the specified torque.

4. Connect the booster in-line with a vacuum gauge (0-30 in Hg) to the booster's engine vacuum supply, and maintain a engine speed that will deliver 500 mm Hg (20 in Hg) vacuum.

5. With a feeler gauge, measure the clearance between the gauge body and the adjusting nut as shown.

Clearance: 0-0.4 mm (0-0.016 in)