Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual — part 61

ME(STI)-6

General Description

MECHANICAL

(1)

Timing belt cover No. 2 RH

(13) Belt idler No. 2

Tightening torque: N·m (kgf-m, ft-lb)

(2)

Timing belt guide

(14) Belt idler

T1: 3.4 (0.3, 2.5)

(3)

Crank sprocket

(15) Timing belt cover LH

T2: 5 (0.5, 3.7)

(4)

Timing belt cover No. 2 LH

(16) Front belt cover

T3: 6.4 (0.7, 4.7)

(5)

Tensioner bracket

(17) Timing belt cover RH

T4: 9.75 (1.0, 7.2)

(6)

Automatic belt tension adjuster
ASSY

(18) Crank pulley

T5: 24.5 (2.5, 18.1)

(7)

Belt idler

(19) O-ring

T6: 25 (2.5, 18.4)

(8)

Exhaust cam sprocket RH

(20) Timing belt guide

T7: 39 (4.0, 28.8)

(9)

Intake cam sprocket RH

(21) Intake actuator cover

T8: <Ref. to ME(STI)-59, INSTALLA-

TION, Cam Sprocket.>

(10) Intake cam sprocket LH

(22) Exhaust actuator cover

T9: <Ref. to ME(STI)-47, INSTALLA-

TION, Crank Pulley.>

(11) Exhaust cam sprocket LH

(23) Belt idler

(12) Timing belt

(24) Engine harness cover

ME(STI)-7

General Description

MECHANICAL

2. CYLINDER HEAD AND CAMSHAFT

ME-04944

T6

T6

T6

T6

T6

T6

T5

(3)

(7)

(6)

(9)

(8)

(10)

(12)

(13)

(25)

(21)

(20)

(6)

(16)

(17)

(18)

(9)

(8)

(19)

(15)

(14)

(29)

(11)

(5)

(4)

(22)

T6

T6

(14)

(29)

(35)

(12)

(27)

(26)

(27)

(33)

(32)

T1

T5

(11)

(31)

(30)

T4

T2

T1

T4

T3

T3

(36)

(24)

(23)

T1

(34)

T6

(1)

(2)

T6

(28)

T2

(33)

(27)

T1

T4

(32)

T4

ME(STI)-8

General Description

MECHANICAL

(1)

Rocker cover RH

(16) Intake camshaft LH

(31) Gasket RH

(2)

Rocker cover gasket RH

(17) Exhaust camshaft LH

(32) Union bolt with filter (with protru-

sion)

(3)

Front camshaft cap RH

(18) Front camshaft cap LH

(33) Union bolt without filter (without

protrusion)

(4)

Intake camshaft cap RH

(19) Intake camshaft cap LH

(34) Gasket

(5)

Intake camshaft RH

(20) Exhaust camshaft cap LH

(35) Exhaust oil flow control solenoid

valve LH

(6)

Intake oil flow control solenoid
valve

(21) Rocker cover gasket LH

(36) Gasket LH

(7)

Exhaust camshaft cap RH

(22) Rocker cover LH

(8)

Gasket

(23) Oil filler cap

Tightening torque: N·m (kgf-m, ft-lb)

(9)

Oil return cover

(24) Oil filler duct

T1: 6.4 (0.7, 4.7)

(10) Exhaust camshaft RH

(25) O-ring

T2: 9 (0.9, 6.6)

(11) Cylinder head bolt

(26) Oil pipe LH

T3: 10 (1.0, 7.4)

(12) Oil seal

(27) Gasket

T4: 29 (3.0, 21.4)

(13) Cylinder head RH

(28) Oil pipe RH

T5: <Ref. to ME(STI)-70, INSTALLA-

TION, Cylinder Head.>

(14) Cylinder head gasket

(29) Stud bolt

T6: <Ref. to ME(STI)-64, INSTALLA-

TION, Camshaft.>

(15) Cylinder head LH

(30) Exhaust oil flow control solenoid

valve RH

ME(STI)-9

General Description

MECHANICAL

3. CYLINDER HEAD AND VALVE ASSEMBLY

(1)

Exhaust valve

(5)

Intake valve oil seal

(9)

Valve lifter

(2)

Intake valve

(6)

Valve spring

(10) Exhaust valve oil seal

(3)

Cylinder head

(7)

Valve spring retainer

(11) Intake valve guide

(4)

Valve spring seat

(8)

Valve spring retainer key

(12) Exhaust valve guide

(3)

(1)

(12)

(10)

(4)

(6)

(7)

(8)

(9)

(10)

(4)

(6)

(7)

(8)

(9)

ME-04990

(12)

(2)

(11)

(4) (5)

(6)

(7) (8)

(9)

(11)

(4) (5)

(6)

(7) (8) (9)