Master Cylinder Installation Note
WARNING: This page is about a different car, the 2004 Mazda 6 and 2003 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
If the master cylinder is installed at a slanted angle to the power brake unit, the master cylinder piston may jam against the push rod retainer of the power brake unit, causing improper air bleeding, brake drag or other malfunctions. Be sure to install the master cylinder at a level, perpendicular angle to the power brake unit.
NOTE:
Always install the gasket of the power brake unit push rod before performing measurement inspections or adjustments.
- Install the Adjustment Gauge (49-G043-001) on to the power brake unit. See Fig 1. Tighten to specifications. See TORQUE SPECIFICATIONS .
- Using a vacuum pump, apply 19.7 in. Hg (66.7 kPa) of vacuum. See Fig 2.
- Measure the dimension of "L" as shown in the illustration. See Fig 1. Specification 1.020-1.027" (25.9-26.1 mm).
- If dimension "L" is not within the specification as shown, remove adjustment gauge and use Adjustment Gauge Wrench (49-B043-004) to adjust the length of the push rod while using Adjustment Gauge Rod (49-E043-003A) to keep the push rod from rotating. See Fig 3.
- Remove the adjustment gauge wrench and adjustment gauge rod, replace adjustment gauge and measure dimension "L" again. If incorrect readjust push rod depth.
- Install the master cylinder to the power brake unit.CAUTION: If after installing the master cylinder, air does not bleed properly from the brake lines even after performing air bleeding, brake drag occurs or other characteristics are present, it is possible that the master cylinder piston is jammed against the power brake unit. If air cannot be bled properly, brake drag exists or other malfunctions occur, remove the master cylinder and reinstall properly.