Waste Gate Actuator

WARNING: This page is about a different variant/trim than selected.

Remove the collector cover.
Remove the front exhaust pipe. Ref. to REMOVAL , Front Exhaust Pipe.

Fig 1: Locating Collector Cover Bolts
Courtesy of SUBARU OF AMERICA, INC.
Remove the exhaust pipe cover.
Remove the boost hose (B) from the waste gate actuator (A) of the turbocharger, and connect the Mighty Vac to the waste gate actuator (A).

Fig 2: Identifying Waste Gate Actuator, Boost Hose, And Control Rod
Courtesy of SUBARU OF AMERICA, INC.
Pressurize slowly with the Mighty Vac, and check the pressure when the control rod stroke (D) becomes 2 mm (0.08 in). If it is not within the standard, replace the turbocharger assembly.
CAUTION: Do not pressurize over 85.2 kPa (0.87 kgf/cm² , 12.35 psi) to prevent damaging the waste gate actuator.

Operating pressure (control rod stroke 2 mm (0.08 in)):

Standard

70.8 - 76.7 kPa (0.72 - 0.78 kgf/cm ² , 10.27 - 11.12 psi)
After inspection, install the related parts in the reverse order of removal.
Tightening torque:

6.4 N.m (0.7 kgf-m, 4.7 ft-lb)

Fig 3: Locating Collector Cover Bolts
Courtesy of SUBARU OF AMERICA, INC.