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Engine Intake System (H4DOTC) (Except Sti): Other Subaru Impreza GH

Mechanical 5 illustrations ~277 words

TURBOCHARGER

  1. Except for WRX-SS model

Scheme 336

Scheme 336

Tightening torque: N.m (kgf-m, ft-lb)

T1: 5 (0.5, 3.7)

T2: 8.8 (0.9, 6.5)

T3: 16 (1.6, 11.8)

T4: 20 (2.0, 14.8)

T5: 23 (2.3, 17.0)

T6: 33 (3.4, 24.3)

  1. WRX-SS model

Scheme 337

Scheme 337

Tightening torque: N.m (kgf-m, ft-lb)

T1: 4.9 (0.5, 3.6)

T2: 6.5 (0.7, 4.8)

T3: 16 (1.6, 11.8)

T4: 20 (2.0, 14.8)

T5: 23 (2.3, 17.0)

T6: 33 (3.4, 24.3)

CAUTION

  1. Wear appropriate work clothing, including a cap, protective goggles and protective shoes when performing any work.
  2. Remove contamination including dirt and corrosion before removal, installation or disassembly.
  3. Keep the disassembled parts in order and protect them from dust and dirt.
  4. Before removal, installation or disassembly, be sure to clarify the failure. Avoid unnecessary removal, installation, disassembly and replacement.
  5. Vehicle components are extremely hot after driving. Be wary of receiving burns from heated parts.
  6. Be sure to tighten fasteners including bolts and nuts to the specified torque.
  7. Place shop jacks or rigid racks at the specified points.
  8. Before disconnecting connectors of sensors or units, be sure to disconnect the ground cable from the battery.

GENERAL TOOL

TOOL NAMEREMARKS
Mighty VacUsed to inspect the waste gate actuator.

GENERAL TOOL CHART

Scheme 338

Scheme 338: REMOVAL

Scheme 339

Scheme 339
  1. Disconnect the ground cable from battery.
  2. Remove the air intake duct. Ref. to «REMOVAL»(ref-357235-S10313590332010031100000) , Air Intake Duct.
  3. Disconnect the connector from air flow and intake air temperature sensor.
  4. Remove the clip (B) from the air cleaner case (front).
  5. Open the air cleaner case, and remove the air cleaner element.

Scheme 340

Scheme 340

OIL PIPE AND WATER PIPE

  1. Check that there are no oil leakage or water leakage from the pipe attachment section.
  2. Check for cracks or loose connections.