Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual — part 67

ME(STI)-30

Engine Assembly

MECHANICAL

9. Engine Assembly

A: REMOVAL

1) Change the bolt installation position from (A) to

(B), then open the front hood completely.
Tightening torque:

7.5 N·m (0.8 kgf-m, 5.5 ft-lb)

2) Remove the V-belt covers.

3) Collect the refrigerant from A/C system. <Ref. to

AC-19, Refrigerant Recovery Procedure.>

4) Release the fuel pressure. <Ref. to FU(STI)-67,

RELEASING OF FUEL PRESSURE, PROCE-

DURE, Fuel.>

5) Remove the battery. <Ref. to SC(STI)-27, RE-

MOVAL, Battery.>

6) Open the fuel filler lid and remove the fuel filler

cap.

7) Remove the air intake duct and air cleaner case.

<Ref. to IN(STI)-10, REMOVAL, Air Intake Duct.>

<Ref. to IN(STI)-8, REMOVAL, Air Cleaner Case.>

8) Remove the intercooler. <Ref. to IN(STI)-12,

REMOVAL, Intercooler.>

9) Remove the radiator. <Ref. to CO(STI)-19, RE-

MOVAL, Radiator.>

10) Remove the coolant filler tank. <Ref. to

CO(STI)-28, REMOVAL, Coolant Filler Tank.>

11) Disconnect the bulkhead harness connectors

from the engine harness connectors.

12) Remove the engine harness connector from

the engine harness bracket.

13) Disconnect the following connectors and termi-

nals.

(1) Generator connector and terminal

(2) Secondary air pump connector

ME-03614

(A)

(B)

(A)

(B)

FU-03487

FU-06571

FU-06572

ME-04187

ME-04655

ME(STI)-31

Engine Assembly

MECHANICAL

14) Disconnect the connector (A) from the A/C

compressor, and remove the clip (B) securing the

generator cord.

15) Disconnect the following hoses.

(1) A/C pressure hose <Ref. to AC-41, RE-

MOVAL, Hose and Pipe.>

(2) Brake booster vacuum hose (A) and pres-

sure regulator vacuum hose (B)

(3) Heater inlet hose and heater outlet hose

16) Remove the power steering pump.

(1) Remove the front side belts. <Ref. to

ME(STI)-40, FRONT SIDE BELT, REMOVAL,

V-belt.>

(2) Disconnect the connector from power steer-

ing pump switch.

(3) Remove the power steering pump from the

engine.

(4) Place the power steering pump on the right

side wheel apron.

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

EX(STI)-8, REMOVAL, Center Exhaust Pipe.>

18) Remove the turbocharger. <Ref. to IN(STI)-15,

REMOVAL, Turbocharger.>

19) Remove the joint pipe and front exhaust pipe.

<Ref. to EX(STI)-12, REMOVAL, Joint Pipe.>

<Ref. to EX(STI)-6, REMOVAL, Front Exhaust

Pipe.>

20) Disconnect the ground cable on the engine

side.

ME-04681

(B)

(A)

(B)

ME-05007

E N G

(A)

(B)

ME-04190

FU-04598

ME-03617

ME-04976

ME(STI)-32

Engine Assembly

MECHANICAL

21) Remove the bolts and nuts which hold the low-

er side of transmission to the engine.

22) Remove the nuts which secure the engine

mounting to the front crossmember.

23) Lower the vehicle.

24) Remove the starter. <Ref. to SC(STI)-8, RE-

MOVAL, Starter.>

25) Separate the clutch release fork from the re-

lease bearing.

(1) Remove the clutch operating cylinder from

the transmission.

(2) Remove the service hole plug using a hexa-

gon wrench (10 mm).

(3) Screw-in the 6 mm dia. bolt into the release

fork shaft to remove.

(4) Raise the release fork, unlock the release

bearing tab, then remove the release fork.

NOTE:

Step (4) is required to avoid interference with the

engine when removing the engine from the trans-

mission.

26) Remove the pitching stopper.

MT-00077

LU-02415

ME-00042

(A) Release fork shaft
(B) Bolt

ME-00043

(B)

(A)

EX-02520

ME(STI)-33

Engine Assembly

MECHANICAL

27) Disconnect the fuel delivery hose, fuel return

hose and evaporation hose.
CAUTION:

• Be careful not to spill fuel.

• Catch the fuel from hoses using a container

or cloth.

(1) Set the ST to the fuel pipe.

ST 42099AE000 QUICK CONNECTOR RE-

LEASE

(2) Disconnect the quick connector of the fuel

delivery hose and fuel return hose by pushing

the ST in the direction of the arrow.

(3) Remove the clip and disconnect the evapo-

ration hose from the fuel pipe.

28) Support the engine with a lifting device and

wire ropes.

29) Support the transmission with a garage jack.
CAUTION:

Be sure to perform this procedure to prevent

the transmission from lowering by its own

weight.

30) Remove the bolts which hold the upper side of

the transmission to the engine.
CAUTION:

Before removing the engine away from trans-

mission, check to be sure no work has been

overlooked.

31) Remove the engine from the vehicle.
NOTE:

Be careful not to damage adjacent parts or body

panels with crank pulley, oil level gauge, etc.

(1) Slightly raise the engine.

(2) Raise the transmission with garage jack.

(3) Move the engine horizontally until main

shaft is withdrawn from clutch cover.

(4) Slowly move the engine away from engine

compartment.

32) Remove the engine mounting from the engine.

(A) Fuel delivery hose
(B) Fuel return hose

(C) Evaporation hose

ME-05008

(A)

(B)

ST

(C)

LU-00222

(A) Transmission
(B) Garage jack

ME-04959

(B)

(A)

MT-01524