Master Cylinder: Installation

WARNING: This page is about a different car, the 2023 Subaru Ascent. However, it is still accessible from the selected car via links, so may be relevant.

Install the master cylinder assembly.
CAUTION:
- Replace the cylinder seal assembly with a new part.
- Use new nuts.
Tightening torque:

Flange bolt: 18 N.m (1.8 kgf-m, 13.3 ft-lb)

Nut: 20 N.m (2.0 kgf-m, 14.8 ft-lb)

Turn and tighten the flare nut (b) by hand while pushing the pipe assembly front ABS (a) toward the master cylinder assembly.

CAUTION: Be careful not to make scratches or other damage to the inside surface of the pipe assembly front ABS flare.

Courtesy of SUBARU OF AMERICA, INC.

Preparation tool:

Flare nut wrench

Crowfoot wrench

NOTE: If the work can be performed with the front and back sides reversed, it is also possible to use a 6-point crowfoot wrench.

Tightening torque:

TIGHTENING TORQUE SPECIFICATION

Calculation formula

T = 19 N.m (1.9 kgf-m, 14.0 ft-lb) xL1/(L1 + L2)

T: Reading of the torque wrench

L1: Effective length of the torque wrench

L2: Effective length of the crowfoot wrench

NOTE: If the effective length of the tool used is unknown, consult the manufacturer of the tool.

Courtesy of SUBARU OF AMERICA, INC.

(a)	Effective length of the crowfoot wrench (L2)
(b)	Effective length of the torque wrench (L1)
(c)	Center of the open end of crowfoot wrench
(d)	Center of drive square of the torque wrench
(e)	Center of the position where a force is applied by hand

Bleed air from the brake system. Ref. to BRAKE>AIR BLEEDING>PROCEDURE .
Connect the ground terminal to battery sensor. Ref. to REPAIR CONTENTS>NOTE>BATTERY .