Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Service manual — part 68

ME(STI)-34

Engine Assembly

MECHANICAL

B: INSTALLATION

1) Install the clutch release fork and bearing to the

transmission.

(1) Using a flat tip screwdriver, remove the re-

lease bearing from the clutch cover.

(2) Attach the release bearing to the transmis-

sion.

(3) Install the release fork into the release bear-

ing tab.

(4) Apply grease to the specified areas.

Grease:

Spline part

NICHIMOLY N-130 or equivalent

Shaft part

KOPR-KOTE or equivalent

(5) Insert the release shaft to release fork.

NOTE:

Allow the cutout portion of release shaft to come

into contact with the spring pin.

(A) Release fork
(B) Release bearing

ME-00051

ME-02591

(A)

(B)

(A) Spline
(B) Shaft

(A) Release fork
(B) Release shaft

(C) Spring pin

CL-00304

(A)

(B)

ME-00054

(A)

(B)

(C)

ME(STI)-35

Engine Assembly

MECHANICAL

(6) Install the service hole plug.

Tightening torque:

44 N·m (4.5 kgf-m, 32.5 ft-lb)

2) Install the engine mounting onto the engine.
Tightening torque:

35 N·m (3.6 kgf-m, 25.8 ft-lb)

3) Apply a small amount of grease to splines of

main shaft.
Grease:

NICHIMOLY N-130 or equivalent

4) Position the engine in engine compartment and

align it with transmission.
NOTE:

Be careful not to damage adjacent parts or body

panels with crank pulley, oil level gauge, etc.

5) Install the bolts which hold upper side of trans-

mission to engine.
Tightening torque:

50 N·m (5.1 kgf-m, 36.9 ft-lb)

6) Remove the lifting device and wire ropes.

7) Remove the garage jack.

8) Install the pitching stopper.
Tightening torque:

T1: 50 N·m (5.1 kgf-m, 36.9 ft-lb)

T2: 58 N·m (5.9 kgf-m, 42.8 ft-lb)

9) Install the starter. <Ref. to SC(STI)-8, INSTAL-

LATION, Starter.>

10) Install the power steering pump.

(1) Install the power steering pump onto the en-

gine.

Tightening torque:

Refer to “COMPONENT” of “Power Steering”

for the tightening torque. <Ref. to PS-4, COM-

PONENT, General Description.>

(2) Connect the connector to the power steering

pump switch.

(3) Install the front side belt. <Ref. to ME(STI)-

40, FRONT SIDE BELT, INSTALLATION, V-

belt.>

11) Lift up the vehicle.

ME-02592

MT-01524

LU-00222

EX-02521

T2

T1

ME-03617

FU-04598

ME(STI)-36

Engine Assembly

MECHANICAL

12) Install the bolts and nuts which hold lower side

of the transmission to engine.
Tightening torque:

50 N·m (5.1 kgf-m, 36.9 ft-lb)

13) Install the nuts which hold the engine mounting

to the crossmember.
Tightening torque:

45 N·m (4.6 kgf-m, 33.2 ft-lb)

14) Connect the ground cable.
Tightening torque:

7.5 N·m (0.8 kgf-m, 5.5 ft-lb)

15) Install the joint pipe and front exhaust pipe.

<Ref. to EX(STI)-6, INSTALLATION, Front Ex-

haust Pipe.> <Ref. to EX(STI)-12, INSTALLATION,

Joint Pipe.>

16) Install the turbocharger. <Ref. to IN(STI)-16,

INSTALLATION, Turbocharger.>

17) Install the center exhaust pipe. <Ref. to

EX(STI)-9, INSTALLATION, Center Exhaust

Pipe.>

18) Connect the following hoses.

(1) Fuel delivery hose, fuel return hose and

evaporation hose

(2) Heater inlet hose and heater outlet hose

(3) Brake booster vacuum hose and pressure

regulator vacuum hose

(4) A/C pressure hose <Ref. to AC-41, INSTAL-

LATION, Hose and Pipe.>

19) Secure the generator cord using the clip (B)

and connect the connector (A) to A/C compressor.

20) Connect the following connectors and termi-

nals.

(1) Generator connector and terminal

Tightening torque:

15 N·m (1.5 kgf-m, 11.1 ft-lb)

(2) Secondary air pump connector

21) Install the engine harness connector to engine

harness bracket, then connect the bulkhead har-

ness connector to the engine harness connector.

22) Install the intercooler. <Ref. to IN(STI)-13, IN-

STALLATION, Intercooler.>

23) Install the radiator. <Ref. to CO(STI)-20, IN-

STALLATION, Radiator.>

24) Install the coolant filler tank. <Ref. to CO(STI)-

28, INSTALLATION, Coolant Filler Tank.>

25) Install the air cleaner case and air intake duct.

<Ref. to IN(STI)-8, INSTALLATION, Air Cleaner

Case.> <Ref. to IN(STI)-10, INSTALLATION, Air

Intake Duct.>

26) Install the battery. <Ref. to SC(STI)-27, IN-

STALLATION, Battery.>

27) Fill engine coolant. <Ref. to CO(STI)-13, FILL-

ING OF ENGINE COOLANT, REPLACEMENT,

Engine Coolant.>

MT-00077

LU-02415

ME-04976

ME-04681

(B)

(A)

(B)

FU-06571

ME(STI)-37

Engine Assembly

MECHANICAL

28) Charge the A/C system with refrigerant. <Ref.

to AC-20, PROCEDURE, Refrigerant Charging

Procedure.>

29) Install the V-belt cover.
Tightening torque:

13 N·m (1.3 kgf-m, 9.6 ft-lb)

30) Change the bolt installation position from (B) to

(A), then close the front hood.
Tightening torque:

7.5 N·m (0.8 kgf-m, 5.5 ft-lb)

C: INSPECTION

1) Check that pipes, hoses, connectors and clamps

are installed firmly.

2) Check the engine coolant is at specified level.

3) Start the engine and check for exhaust gas, en-

gine coolant, leaks of fuel, etc. Also check for noise

and vibrations.

FU-03487

ME-03614

(A)

(B)

(A)

(B)