Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual - part 59
IN(STI)-18
Turbocharger
INTAKE (INDUCTION)
12) Install the intercooler stay.
Tightening torque:
16 N·m (1.6 kgf-m, 11.8 ft-lb)
13) Install the intercooler. <Ref. to IN(STI)-13, IN-
14) Connect the battery ground terminal.
15) Fill engine coolant. <Ref. to CO(STI)-13, FILL-
ING OF ENGINE COOLANT, REPLACEMENT,
C: INSPECTION
1. WASTE GATE ACTUATOR
1) Remove the intercooler. <Ref. to IN(STI)-12,
2) Remove the turbocharger upper cover.
3) 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).
4) Pressurize slowly with the Mighty Vac, and mea-
sure the pressure when the control rod stroke (D)
becomes 2 mm (0.08 in). If it is not within the stan-
dard, replace the turbocharger assembly.
CAUTION:
Do not pressurize over 89.9 kPa (0.92 kgf/cm
2
,
13.0 psi) to prevent damaging the waste gate
actuator.
Operating pressure (control rod stroke 2 mm
(0.08 in)):
Standard
74.7 — 80.8 kPa
(0.76 — 0.82 kgf/cm
2
, 10.8 — 11.7 psi)
5) After inspection, install the related parts in the
reverse order of removal.
Tightening torque:
7.5 N·m (0.8 kgf-m, 5.5 ft-lb)
2. OTHER INSPECTIONS
1) Check that the turbocharger, turbocharger stay
and pipe have no deformation, cracks or other
damages.
2) Check that the hose and intake duct have no
cracks, damage or loose part.
3) Check that there are no oil leakage or water
leakage from the pipe attachment section.
EX-00007
IN-00203
EX-02662
(A) Waste gate actuator
(B) Boost hose
(C) Control rod
(D) Control rod stroke
(C)
(B)
(A)
IN-02942
(D)