Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual — part 571

PS-5

General Description

POWER ASSISTED SYSTEM (POWER STEERING)

2. POWER ASSISTED SYSTEM

• Hose and tank

(1)

Eyebolt

(9)

Suction hose

Tightening torque: N·m (kgf-m, ft-lb)

(2)

Hose

(10) Hose bracket

T1: 7.5 (0.76, 5.5)

(3)

Eyebolt gasket

(11) Clip

T2: 10 (1.0, 7.4)

(4)

Clip

(12) Clip

T3: 11 (1.1, 8.1)

(5)

Clamp E

(13) Return hose

T4: 13 (1.3, 9.6)

(6)

Cap

(14) Belt cover bracket

T5: 18 (1.8, 13.3)

(7)

Reservoir tank

(15) Suction connector

T6: 21 (2.1, 15.5)

(8)

Oil pump

(16) O-ring

T7: 40 (4.1, 29.5)

T4

T2

T5

T1

T4

T7

(9)

(1)

(4)

(11)

(7)

(6)

(12)

(2)

(10)

(5)

(8)

(4)

(3)

(11)

(13)

PS-01678

T3

(14)

(16)

(15)

T6

PS-6

General Description

POWER ASSISTED SYSTEM (POWER STEERING)

• Gearbox

(1)

Feed pipe

(21) Clamp

(41) Bushing

(2)

Return pipe

(22) Cotter pin

(42) Lock washer

(3)

Clamp plate

(23) Castle nut

(43) Back-up ring

(4)

Universal joint (STI model)

(24) Dust cover

(44) O-ring

(5)

Dust seal

(25) Clip

(45) Universal joint (except for STI

model)

(6)

Valve housing

(26) Tie-rod end

(7)

O-ring

(27) Clip

Tightening torque: N·m (kgf-m, ft-lb)

(8)

Oil seal

(28) Boot

T1: Tighten to 5.9 (0.6, 4.4), and

loosen by 20 degrees.

(9)

Bushing

(29) Band

T2: 9 (0.9, 6.6)

(10) Seal ring

(30) Tie-rod

T3: 15 (1.5, 11.1)

(11) Pinion & valve ASSY

(31) Pipe B

T4: 17 (1.7, 12.5)

(12) Oil seal

(32) Pipe A

T5: 20 (2.0, 14.8)

(13) Back-up washer

(33) Steering body

T6: 24 (2.4, 17.7)

(14) Ball bearing

(34) Oil seal

T7: 25 (2.5, 18.4)

(15) Snap ring

(35) Piston seal ring

T8: 27 (2.8, 19.9)

(16) Lock nut

(36) Rack

T9: 37 (3.8, 27.3)

(17) Adjusting screw

(37) Oil seal

T10: 29 (3.0, 21.4)

(18) Spring

(38) Holder

T11: 60 (6.1, 44.3)

(19) Sleeve

(39) O-ring

T12: 70 (7.1, 51.6)

(20) Adapter

(40) Stiffener

T13: 85 (8.7, 62.7)

T14: 93 (9.5, 68.6)

T11

T8

T13

T8

T14

T4

T14

T13

T8

T5

T6

(22)

(20)

(23)

(24)

(25)

(26)

(27)

(28)

(29)

(30)

(38)

(37)

(32)

(36)

(35)

(44)

(30)

(28)

(27)

(26)

(25)

(24)

(7)

(8)

(9)

(10)

(11)

(22)

(23)

(5)

(6)

(12)

(13)

(15)

(42)

(14)

(33)

(19)

(18)

(17)

(16)

(21)

(34)

(31)

T3

(2)

(3)

T9

T10

T2

(1)

(3)

(39)

T7

T1

(29)

(40)

T11

(41)

T12

(43)

PS-01677

(45)

T6

(4)

PS-7

General Description

POWER ASSISTED SYSTEM (POWER STEERING)

3. OIL PUMP

(1)

Oil pump

Tightening torque: N·m (kgf-m, ft-lb)

(2)

Pulley

T1: 8 (0.8, 5.9)

(3)

Bracket

T2: 16 (1.6, 11.8)

(4)

Belt tension nut

T3: 22 (2.2, 16.2)

(5)

Washer plate

T4: 25 (2.5, 18.4)

T5: 48 (4.9, 35.4)

T4

T3

T3

T5

T1

T2

(3)

(2)

(1)

(4)

PS-01679

(5)

PS-8

General Description

POWER ASSISTED SYSTEM (POWER STEERING)

C: CAUTION

• Wear appropriate work clothing, including a helmet, protective goggles and protective shoes when per-

forming any work.

• Before removal, installation or disassembly, be sure to clarify the failure. Avoid unnecessary removal, in-

stallation, disassembly and replacement.

• Vehicle components are extremely hot after driving. Be wary of receiving burns from heated parts.

• Use SUBARU genuine power steering fluid, grease etc. or equivalent. Do not mix fluid, grease etc. of dif-

ferent grades or manufacturers.

• Be sure to tighten fasteners including bolts and nuts to the specified torque.

• Place shop jacks or rigid racks at the specified points.

• Before securing a part on a vise, place cushioning material such as wooden blocks, aluminum plate or

cloth between the part and the vise.

D: PREPARATION TOOL

1. SPECIAL TOOL

ILLUSTRATION

TOOL NUMBER

DESCRIPTION

REMARKS

925711000

PRESSURE
GAUGE

Used for measuring oil pressure.

926200000

STAND

• Used when inspecting characteristic of gear-
box assembly and disassembling it.
• Used together with BOSS D (34199AG000).

34099AC010

ADAPTER HOSE A

Used together with PRESSURE GAUGE
(925711000).

ST-925711000

ST-926200000

ST34099AC010