Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Service 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-
5) Remove the battery. <Ref. to SC(STI)-27, RE-
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,
9) Remove the radiator. <Ref. to CO(STI)-19, RE-
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-
(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,
(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,
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
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-
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
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