Master Cylinder Push Rod
- Before installing master cylinder, measure clearance between master cylinder piston and power brake unit push rod. Place Adjusting Gauge (49-B043-001) on master cylinder. Turn adjusting bolt until it touches bottom of pushrod hole in the piston. See Fig 1
.
- Using a hand-held vacuum pump, apply 19.7 in. Hg vacuum to power brake unit. Invert Adjusting Gauge (49-B043-001) used in step 1
and place it onto power brake unit. Measure clearance between end of Adjusting Gauge (49-B043-001
) and push rod of power brake unit.
- There should be zero clearance (air gap). If there is clearance (air gap), loosen push rod locknut and turn push rod to adjust it using Push Rod Adjuster (49-B043-004) and Adapter (49-E043-003A). See Fig 1
.
Courtesy of MAZDA MOTORS CORP.