NOTE: The power brake booster to master cylinder push rod adjustment should only need to be adjusted when the master cylinder has been replaced.
Remove the master cylinder.
Measure the master cylinder primary piston depth
Loosen the set screw.
Push the Master Cylinder Gauge plunger into the master cylinder primary piston.
While holding the plunger in place tighten the screw.
CAUTION: Use care when removing the gauge from the master cylinder. If the gauge plunger is moved during removal a faulty measurement will be recorded causing the possibility of misadjustment of the power brake booster push rod.
Measure the power brake booster push rod length.
Position the gauge to the over the power brake booster push rod.
Measure the clearance between the gauge and the push rod.
NOTE: If the power brake booster to master cylinder is not within specifications perform the following adjustment step.
Adjust the power brake booster to master cylinder push rod.