Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Service manual — part 162
ME(w/o STI)-29
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(w/o STI)-
65, 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(w/o STI)-10, REMOVAL, Air Intake
Duct.> <Ref. to IN(w/o STI)-8, REMOVAL, Air
8) Remove the intercooler. <Ref. to IN(w/o STI)-12,
9) Remove the radiator. <Ref. to CO(w/o STI)-19,
10) Remove the coolant filler tank. <Ref. to CO(w/o
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-03387
(A)
(B)
(A)
(B)
ME-03386
FU-06604
FU-06605
ME-04654
ME-04195
ME(w/o STI)-30
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
(3) Heater inlet hose and heater outlet hose
16) Remove the power steering pump.
(1) Remove the front side belts. <Ref. to ME(w/
o STI)-38, FRONT SIDE BELT, REMOVAL, V-
(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(w/o
STI)-14, 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
20) Disconnect the ground cable on the engine
side.
ME-04967
(B)
(A)
(B)
ME-04196
ME-04197
FU-04598
ME-03617
ME-03702
ME(w/o STI)-31
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 pitching stopper.
25) Attach ST to the fuel delivery pipe and push ST
in the direction of arrow mark to disconnect the fuel
delivery hose.
ST 42099AE000 QUICK CONNECTOR RE-
LEASE
CAUTION:
• Be careful not to spill fuel.
• Catch the fuel from hoses using a container
or cloth.
26) Disconnect the fuel return hose using the ST.
ST 18371AA000 CONNECTOR REMOVER
CAUTION:
• Be careful not to spill fuel.
• Catch the fuel from hoses using a container
or cloth.
(1) Attach ST to the fuel return pipe as shown in
the figure.
MT-00077
ME-03703
LU-02462
(A) Fuel delivery hose
(B) Fuel return hose
(C) Evaporation hose
ME-04968
(B) (C)
(A)
ST
ME-04969
ST
ME(w/o STI)-32
Engine Assembly
MECHANICAL
(2) Insert the front side of ST into the quick con-
nector.
(3) Insert the back side of ST into the quick con-
nector and push ST in the direction of arrow
mark to disconnect the fuel return hose.
27) Remove the clip and disconnect the evapora-
tion 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) Separation of engine and transmission
CAUTION:
Before removing the engine away from trans-
mission, check to be sure no work has been
overlooked.
(1) Remove the starter. <Ref. to SC(STI)-8, RE-
(2) Remove the bolts which hold the upper side
of the transmission to the engine.
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.
ME-04970
ST
ME-04971
ST
FU-04611
LU-00222
(A) Transmission
(B) Garage jack
ME-04959
(B)
(A)
MT-01524
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