Master Cylinder Push Rod

NOTE: Check and adjust master cylinder push rod-to-piston clearance before installing master cylinder.

Install and adjust Push Rod Adjustment Gauge (07JAG-SD40100) so gauge center rod makes light contact with secondary piston of master cylinder. See Fig 1. Ensure gasket is in position when adjusting rod clearance.
Remove push rod adjustment gauge from master cylinder, and install gauge onto brake booster. See Fig 2. Tighten mounting nuts to specification. See TORQUE SPECIFICATIONS . Using engine or outside vacuum source, apply at least 20 in. Hg vacuum to brake booster. Check clearance using feeler gauge. See MASTER CYLINDER PUSH ROD CLEARANCE table.
Adjust push rod clearance by turning nut at end of push rod. On Prelude with ABS, remove adjustment gauge and adjust clearance by turning adjuster in or out while holding output rod. Adjust push rod length to 4.55-4.59" (115.5-116.5 mm). See Fig 3. Tighten lock nut to specification. See TORQUE SPECIFICATIONS .

MASTER CYLINDER PUSH ROD CLEARANCE

Fig 1: Setting Push Rod Adjustment Gauge

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig 2: Checking Push Rod Clearance

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig 3: Adjusting Push Rod Clearance & Length

Courtesy of AMERICAN HONDA MOTOR CO., INC.