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Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual - part 164

ME(w/o STI)-37

Preparation for Overhaul

MECHANICAL

11.Preparation for Overhaul

A: PROCEDURE

1) After removing the engine from vehicle body, at-

tach the ST to the engine as shown in the figure.

ST1 498457000

ENGINE STAND ADAPTER

ST2 498457100

ENGINE STAND ADAPTER

ST3 499817100

ENGINE STAND

2) In this section the procedures described under

each index are all connected and stated in order.

The procedure for overhauling of the engine will be

completed when you go through all steps in the

process.

Therefore, in this section, to conduct the particular

procedure within the flow of a section, you need to

go back and conduct the procedure described pre-

viously in order to do that particular procedure.

ME-00057

ST3

ST2

ST1

ME(w/o STI)-38

V-belt

MECHANICAL

12.V-belt

A: REMOVAL

NOTE:

When replacing a single part, perform the work with

the engine assembly installed to body.

1. FRONT SIDE BELT

1) Remove the V-belt covers.

2) Remove the air intake duct. <Ref. to IN(w/o STI)-

10, REMOVAL, Air Intake Duct.>

3) Loosen the bolt (A).

4) Loosen the slider bolt (B).

5) Remove the front side belt (C).

2. REAR SIDE BELT

1) Remove the front side belts. <Ref. to ME(w/o

STI)-38, FRONT SIDE BELT, REMOVAL, V-belt.>

2) Cut the rear side belt with a wire cutter, etc., and

discard.

B: INSTALLATION

1. FRONT SIDE BELT

CAUTION:

• When reusing the front side belt, wipe off

dust and water with cloth.

• Do not use the front side belt if there is any

oil, grease or coolant on the belt.

• Be careful not to rub the belt end surface with

bare hands; exposed core may cause injury.

1) Wipe off any dust, oil and water on the groove of

each pulley with cloth.

2) Install the front side belt (C), and adjust the slider

bolt (B) so as to obtain the specified belt tension.

<Ref. to ME(w/o STI)-44, INSPECTION, V-belt.>

3) Tighten the bolt (A).

4) Tighten the slider bolt (B).
Tightening torque:

Bolt (A)

25 N·m (2.5 kgf-m, 18.4 ft-lb)

Slider bolt (B)

8 N·m (0.8 kgf-m, 5.9 ft-lb)

5) Install the air intake duct. <Ref. to IN(w/o STI)-

10, INSTALLATION, Air Intake Duct.>

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

13 N·m (1.3 kgf-m, 9.6 ft-lb)

ME-03386

ME-04947

(A)

(C)

(B)

(A)

ME-03343

ME-04947

(A)

(C)

(B)

(A)

ME-03386

ME(w/o STI)-39

V-belt

MECHANICAL

2. REAR SIDE BELT

CAUTION:

• Do not re-use the rear side belt.

• Be careful not to let oil, grease or coolant contact a new rear side belt.

• Be careful not to rub the belt end surface with bare hands; exposed core may cause injury.

• To install the rear side belt, always use the provided tools (belt stopper, belt guide, belt guide hold-

er, and bolt).

1) Wipe off any dust, oil and water on the groove of

each pulley with cloth.

2) Wipe off any oil, water, dirt, and rust on the front

of the crank pulley with cloth.

3) Slowly turn the crank pulley clockwise so that the

service hole of the crank pulley comes around the

top.
CAUTION:

Do not turn the crank pulley counterclockwise.

4) Hook a new rear side belt on the A/C compres-

sor pulley.

5) As shown in the figure, insert the claw of the belt

stopper (A) to the lower hole (B) of the compressor

bracket, then attach with bolt (C).

(A)

Rear side belt

(C)

Belt guide

(E)

Bolt

(B)

Belt stopper

(D)

Belt guide holder

ME-04287

(A)

(B)

(C)

(D)

(E)

ME-03500

ME-03501

ME-04670

(A)

(C)

(B)

ME(w/o STI)-40

V-belt

MECHANICAL

6) Place the belt guide while aligning it with the belt

line of the crank pulley on the front side belt side.

7) Insert the belt guide holder into the service hole

of the crank pulley so that the belt guide comes in

between.
NOTE:

Place the belt guide holder with the longer side up.

8) Slowly turn the crank pulley clockwise until the

belt guide comes to approximately 45°.

9) Place the rib surface of the rear side belt into the

crank pulley groove, so that the rear side belt

comes in between the belt guide holder.
CAUTION:

When it is difficult to place the rear side belt to

the crank pulley groove, pull out the belt guide

holder half way, then place the rear side belt

into the groove so that it comes in between the

belt guide holder.

10) Place the tool through the loop of the rear side

belt, and set on the crank pulley bolt.

ME-04289

ME-03504

ME-03505

ME-04671

ME-04672

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