Summit L4-1468cc 1.5L SOHC (1989)
Vacuum Brake Booster: Adjustments
Pushrod Adjustment
Brake Booster Pushrod-To-Primary Piston Clearance
1.
With master cylinder removed from vehicle, as described under "Master Cylinder Replace," proceed as follows:
a. Measure distance between master cylinder end face and the piston. Position a square (straight scale) against edge of master cylinder, then
measure and subtract thickness of the square to determine dimension B.
b. Find dimension C by measuring distance between brake booster mounting surface and the end face.
c. Measure distance between master cylinder mounting surface and the pushrod end. Find dimension D by subtracting the square's thickness from
the measurement taken.
d. Find brake booster-to-primary piston clearance dimension A, using the formula A = B - C - D. Refer to the "Hydraulic Brake System
Specifications" chart for proper clearance specifications.
e. If dimension A is not as specified, adjust brake booster pushrod as shown.
