Vacuum Pump: Installation

WARNING: This page is about a different car, the 2022 Subaru WRX. However, it is still accessible from the selected car via links, so may be relevant.

Apply liquid gasket to the vacuum pump as shown in the figure.
NOTE:
- Before applying liquid gasket, degrease the old liquid gasket seal surface of the engine where the vacuum pump is mounted on, and the surface of the vacuum pump.
- When applying liquid gasket, the start and the end of application should cross at the point within the range A shown in the figure.
- Install within 5 min. after applying liquid gasket.
Preparation items:

Liquid gasket: THREE BOND 1217G (part No. K0877Y0100), THREE BOND 1217H or equivalent

Liquid gasket applying diameter:

3±1 mm (0.1181±0.0394 in)

Courtesy of SUBARU OF AMERICA, INC.
Install the vacuum pump.
NOTE:
When installing the vacuum pump, align the slot on the vacuum pump shaft (a) with the protrusion on the intake camshaft RH (b).

Courtesy of SUBARU OF AMERICA, INC.

Tightening torque:

16 N.m (1.6 kgf-m, 11.8 ft-lb)
Apply engine oil to the threaded portion for the vacuum pump union bolt.
Set a new gasket on the oil pipe (vacuum pump), and secure the oil pipe with the union bolt.
Tightening torque:

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

When working on the vehicle

NOTE:

When working on the vehicle, perform the following steps also.

Place the vacuum pipe, and connect the brake booster vacuum hose to the vacuum pump.

NOTE:

When connecting the brake booster vacuum hose, align the alignment marks (a) on the brake booster vacuum hose and the vacuum pump.

Courtesy of SUBARU OF AMERICA, INC.

Install the bolts securing the vacuum pipe to the engine rear hanger.
Tightening torque:

18 N.m (1.8 kgf-m, 13.3 ft-lb)
Install the intercooler. Ref. to INTAKE (INDUCTION) (H4DOTC)>INTERCOOLER>INSTALLATION