Subaru Outback manuals

Subaru Outback: Oil Pressure Switch

A: REMOVAL

1) Disconnect the ground cable from battery.

Subaru Outback. Lubrication

2) Remove the generator. <Ref. to SC(H4SO)-18, REMOVAL, Generator.>

3) Disconnect the terminal from oil pressure switch.

Subaru Outback. Lubrication

4) Remove the oil pressure switch.

Subaru Outback. Lubrication

B: INSTALLATION

1) Apply liquid gasket to the oil pressure switch threads.

Liquid gasket: THREE BOND 1324 (Part No. 004403042) or equivalent

Subaru Outback. Lubrication

2) Install the oil pressure switch to cylinder block.

Tightening torque: 25 N*m (2.5 kgf-m, 18.4 ft-lb)

Subaru Outback. Lubrication

3) Connect the terminal to the oil pressure switch.

Subaru Outback. Lubrication

4) Install the generator. <Ref. to SC(H4SO)-18, INSTALLATION, Generator.>

5) Connect the battery ground terminal.

Subaru Outback. Lubrication

C: INSPECTION

1) Check that the oil pressure switch does not have deformation, cracks or damage.

2) Check the oil pressure switch installation portion for oil leakage and oil seepage.

Engine Oil Cooler

A: REMOVAL

CAUTION: If engine oil is spilt onto the exhaust pipe, wipe it off with cloth to avoid emission of smoke or causing a fire.

NOTE: Turbo model is equipped with engine oil cooler.

1) Lift up the vehicle.

2) Remove the under cover. <Ref. to EI-35, REMOVAL, Front Under Cover.>

3) Drain engine coolant. <Ref. to CO(H4DOTC)- 14, DRAINING OF ENGINE COOLANT, REPLACEMENT, Engine Coolant.>

4) Remove the front exhaust pipe. <Ref. to EX(H4DOTC)-5, REMOVAL, Front Exhaust Pipe.>

5) Remove the engine oil filter. <Ref. to LU(H4SO)- 36, REMOVAL, Engine Oil Filter.>

6) Remove the bolt (B) holding the oil cooler pipe (A) to the oil pump.

7) Remove the oil cooler pipe (A), oil cooler hose A (C) and oil cooler hose B (J).

8) Remove the oil cooler connector (D) and oil cooler (E).

Subaru Outback. Lubrication

  1. Oil cooler pipe
  2. Bolt
  3. Oil cooler hose A
  4. Oil cooler connector
  5. Oil cooler
  6. Gasket
  7. Clip
  8. Oil cooler pipe stay
  9. O-ring
  10. Oil cooler hose B

B: INSTALLATION

Install in the reverse order of removal.

NOTE:

Subaru Outback. Lubrication

Tightening torque:
T1: 6.4 N*m (0.7 kgf-m, 4.7 ft-lb)
T2: 54 N*m (5.5 kgf-m, 39.8 ft-lb)

Subaru Outback. Lubrication

  1. Oil cooler pipe
  2. Bolt
  3. Oil cooler hose A
  4. Oil cooler connector
  5. Oil cooler
  6. Gasket
  7. Clip
  8. Oil cooler pipe stay
  9. O-ring
  10. Oil cooler hose B

C: INSPECTION

1) Check that the engine oil cooler, oil cooler pipe and oil cooler connector do not have deformation, cracks or damage.

2) Make sure the oil cooler hoses are not cracked, damaged or loose.

3) Check the coolant paths for clogs while spraying compressed air.

4) Make sure the mating surfaces of the cylinder block do not have damage.

Oil Catch Tank

A: REMOVAL

For the removal procedures, refer to IN (H4DOTC) section. <Ref. to IN(H4DOTC)-23, REMOVAL, Oil Catch Tank.>

B: INSTALLATION

For the installation procedures, refer to IN (H4DOTC) section. <Ref. to IN(H4DOTC)-23, INSTALLATION, Oil Catch Tank.>

C: INSPECTION

For the inspection procedures, refer to IN (H4DOTC) section. <Ref. to IN(H4DOTC)-24, INSPECTION, Oil Catch Tank.>

Scavenge Pump

A: REMOVAL

CAUTION: If engine oil is spilt onto the exhaust pipe, wipe it off with cloth to avoid emission of smoke or causing a fire.

NOTE: The scavenge pump is installed on turbo models.

1) Lift up the vehicle.

2) Remove the under cover. <Ref. to EI-35, REMOVAL, Front Under Cover.>

3) Remove the union bolt (A) which fixes the oil pipe (C) to the scavenge pump (E).

4) Remove the bolt (D) which fixes the scavenge pump (E) to the cylinder head, and remove the scavenge pump using a flat tip screwdriver.

CAUTION: Be careful not to damage the mating surfaces of the cylinder head and scavenge pump.

Subaru Outback. Lubrication

  1. Union bolt
  2. Gasket
  3. Oil pipe
  4. Bolt
  5. Scavenge pump

B: INSTALLATION

Install in the reverse order of removal.

CAUTION: Do not start applying liquid gasket from (A) as shown in the following figure.

NOTE:

Liquid gasket: THREE BOND 1217G (Part No. K0877Y0100) or equivalent

Subaru Outback. Lubrication

Tightening torque:
T1: 6.4 N*m (0.7 kgf-m, 4.7 ft-lb)
T2: 29 N*m (3.0 kgf-m, 21.4 ft-lb)

Subaru Outback. Lubrication

  1. Union bolt
  2. Gasket
  3. Oil pipe
  4. BOLT
  5. Scavenge pump

C: INSPECTION

1) Check that the scavenge pump and oil pipe have no deformation, cracks and other damages.

2) Check that the scavenge pump has no cracks, damage or loose part.

Oil Pipe

A: REMOVAL

NOTE: Turbo model is equipped with oil pipe.

1) Remove the collector cover.

2) Disconnect the ground cable from battery.

Subaru Outback. Lubrication

3) Remove the intercooler. <Ref. to IN(H4DOTC)- 17, REMOVAL, Intercooler.>

4) Lift up the vehicle.

5) Remove the under cover. <Ref. to EI-35, REMOVAL, Front Under Cover.>

6) Remove the ground cable from the oil outlet pipe.

7) Disconnect the oil outlet hose from the oil outlet pipe.

Subaru Outback. Lubrication

8) Remove oil inlet pipe B (B) from oil inlet pipe A (A), and remove the bolt which holds oil outlet pipe C (C) and oil inlet pipe A (A).

CAUTION: In order to prevent damaging the oil inlet pipe, fix the section (a) shown in the figure when loosing the oil inlet pipe flare nut, and avoid the part from rotating together while loosening the nut.

Subaru Outback. Lubrication

9) Lower the vehicle.

10) Remove the union bolt (B) securing the oil outlet pipe (A) from the scavenge pump.

11) Remove the bolts (C) and (D) securing the oil outlet pipe (A) to the cylinder head, and remove the oil outlet pipe (A).

Subaru Outback. Lubrication

12) Remove the oil inlet pipe B (A) from the oil inlet pipe C (C).

CAUTION: In order to avoid damaging the oil inlet pipe C (C), fix the section (a) shown in the figure so that it will not rotate together when loosening the flare nut of the oil inlet pipe B (A).

Subaru Outback. Lubrication

13) Remove the bolt (B) securing the oil inlet pipe B (A) to the cylinder head and stay, and remove the oil inlet pipe B (A).

14) Remove the union bolt (D) securing the oil inlet pipe C (C) to the cylinder head, and remove the oil inlet pipe C (C).

Subaru Outback. Lubrication

15) Remove the intake manifold. <Ref. to FU(H4DOTC)-18, REMOVAL, Intake Manifold.>

16) Remove the radiator main fan and radiator sub fan. <Ref. to CO(H4DOTC)-25, REMOVAL, Radiator Main Fan and Fan Motor.> <Ref. to CO(H4DOTC)-27, REMOVAL, Radiator Sub Fan and Fan Motor.>

17) Remove the V-belts. <Ref. to ME(H4DOTC)- 42, REMOVAL, V-belt.>

18) Remove the crank pulley. <Ref. to ME(H4DOTC)-44, REMOVAL, Crank Pulley.>

19) Remove the timing belt cover. <Ref. to ME(H4DOTC)-46, REMOVAL, Timing Belt Cover.>

20) Remove the timing belt. <Ref. to ME(H4DOTC)-52, REMOVAL, Timing Belt.>

21) Remove the cam sprocket LH. <Ref. to ME(H4DOTC)-61, REMOVAL, Cam Sprocket.>

22) Remove the belt cover No. 2 LH.

Subaru Outback. Lubrication

23) Remove the oil pipe.

Subaru Outback. Lubrication

  1. Union bolt with filter (with protrusion)
  2. Union bolt without filter (without protrusion)
  3. Oil pipe RH
  4. Oil pipe LH
  5. Gasket

B: INSTALLATION

1) Inspect the union bolt with filter. <Ref. to LU(H4SO)-35, INSPECTING UNION BOLT WITH FILTER, INSPECTION, Oil Pipe.>

2) Install the oil pipe.

NOTE:

Tightening torque:
T1: 6.4 N*m (0.7 kgf-m, 4.7 ft-lb)
T2: 29 N*m (3.0 kgf-m, 21.4 ft-lb)

Subaru Outback. Lubrication

  1. Union bolt with filter (with protrusion)
  2. Union bolt without filter (without protrusion)
  3. Oil pipe RH
  4. Oil pipe LH
  5. Gasket

3) Install the belt cover No. 2 LH.

Tightening torque: 5 N*m (0.5 kgf-m, 3.7 ft-lb)

Subaru Outback. Lubrication

4) Install the cam sprocket LH. <Ref. to ME(H4DOTC)-61, INSTALLATION, Cam Sprocket.>

5) Install the timing belt. <Ref. to ME(H4DOTC)-55, TIMING BELT, INSTALLATION, Timing Belt.>

6) Install the timing belt cover. <Ref. to ME(H4DOTC)-49, INSTALLATION, Timing Belt Cover.>

7) Install the crank pulley. <Ref. to ME(H4DOTC)- 44, INSTALLATION, Crank Pulley.>

8) Install the V-belts. <Ref. to ME(H4DOTC)-42, INSTALLATION, V-belt.>

9) Install the radiator main fan and the radiator sub fan. <Ref. to CO(H4DOTC)-25, INSTALLATION, Radiator Main Fan and Fan Motor.> <Ref. to CO(H4DOTC)-27, INSTALLATION, Radiator Sub Fan and Fan Motor.>

10) Install the intake manifold. <Ref. to FU(H4DOTC)-22, INSTALLATION, Intake Manifold.>

11) Install the oil inlet pipe C (C) to the cylinder head with the union bolt (D).

NOTE: Use a new gasket.

Tightening torque: 29 N*m (3.0 kgf-m, 21.4 ft-lb)

12) Temporarily install the oil inlet pipe B (A) to the oil inlet pipe C (C).

13) Install the oil inlet pipe B (A) to the cylinder head with the bolt (B).

Tightening torque: 6.4 N*m (0.7 kgf-m, 4.7 ft-lb)

14) Tighten the flare nut of the oil inlet pipe B (A).

CAUTION: In order to avoid damaging the oil inlet pipe C (C), fix the section (a) shown in the figure so that it will not rotate together when tightening the flare nut of the oil inlet pipe B (A).

Subaru Outback. Lubrication

Tightening torque: 20 N*m (2.0 kgf-m, 14.8 ft-lb)

Subaru Outback. Lubrication

15) Temporarily install the oil outlet pipe (A) to the scavenge pump using the union bolt (B).

16) Secure the oil outlet pipe (A) to the cylinder head and stay with bolts (C) and (D).

Tightening torque: 6.4 N*m (0.7 kgf-m, 4.7 ft-lb)

17) Tighten the union bolt (B) of the oil outlet pipe (A).

Tightening torque: 29 N*m (3.0 kgf-m, 21.4 ft-lb)

Subaru Outback. Lubrication

18) Lift up the vehicle.

19) Install the bolt which holds oil outlet pipe (C) and oil inlet pipe A (A), and install oil inlet pipe B (B) to oil inlet pipe A (A).

CAUTION: In order to prevent damaging the oil inlet pipe, fix the section (a) shown in the figure when tightening the oil inlet pipe flare nut, and avoid the part from rotating together while tightening the nut.

Subaru Outback. Lubrication

Tightening torque:
T1: 6.4 N*m (0.7 kgf-m, 4.7 ft-lb)
T2: 20 N*m (2.0 kgf-m, 14.8 ft-lb)

Subaru Outback. Lubrication

20) Attach the ground cable to the oil outlet pipe.

Tightening torque: 7 N*m (0.7 kgf-m, 5.2 ft-lb)

21) Connect the oil outlet hose to the oil outlet pipe.

Subaru Outback. Lubrication

22) Install the under cover. <Ref. to EI-35, INSTALLATION, Front Under Cover.>

23) Lower the vehicle.

24) Install the intercooler. <Ref. to IN(H4DOTC)- 18, INSTALLATION, Intercooler.>

25) Connect the battery ground terminal.

Subaru Outback. Lubrication

26) Install the collector cover.

C: INSPECTION

1. INSPECTING UNION BOLT WITH FILTER

Check the filter part of union bolt for clogging or damage, and if defective, replace the union bolt with filter with the new part.

Subaru Outback. Lubrication

  1. Union bolt with filter (with protrusion)
  2. Union bolt without filter (without protrusion)
  3. Oil pipe RH
  4. Oil pipe LH
  5. Gasket

2. OTHER INSPECTIONS

1) Check that the oil pipe and union bolt have no deformation, cracks and other damages.

2) Check that there are no oil leaks or oil oozing from the oil pipe attachment section.

Engine Oil Filter

A: REMOVAL

CAUTION: If the engine oil is spilt over exhaust pipe or the under cover, wipe it off with cloth to avoid emitting smoke or causing a fire.

1) Lift up the vehicle.

2) Remove the service hole cover of under cover.

Subaru Outback. Lubrication

Subaru Outback. Lubrication

3) Remove the oil filter.

Remove it using the ST.

ST 18332AA000 OIL FILTER WRENCH (OUTER DIAMETER: 68 MM (2.68 IN) FOR OIL FILTER)

Remove it using the general tool (65/67 mm 14 flutes).

Subaru Outback. Lubrication

B: INSTALLATION

CAUTION: Do not tighten excessively, or oil may leak.

1) Clean the oil filter installation surface on the cylinder block or engine oil cooler.

2) Obtain a new oil filter and apply a thin coat of engine oil to the seal rubber.

3) Install the oil filter turning it by hand, being careful not to damage the seal rubber of the oil filter.

4) Return the service hole cover to its original position.

5) Lower the vehicle.

6) After installing, check the engine oil level and replenish it if necessary. <Ref. to LU(H4SO)-13, INSPECTION, Engine Oil.>

C: INSPECTION

1) After installing the oil filter, run the engine and make sure that no oil is leaking around seal rubber.

NOTE: The filter element and filter case are permanently jointed; therefore, interior cleaning is not necessary.

2) Check the engine oil level. <Ref. to LU(H4SO)- 13, INSPECTION, Engine Oil.>

Oil Level Switch

A: REMOVAL

1) Disconnect the ground cable from battery.

Subaru Outback. Lubrication

2) Lift up the vehicle.

3) Remove the under cover. <Ref. to EI-35, REMOVAL, Front Under Cover.>

4) Drain the engine oil. <Ref. to LU(H4SO)-13, REPLACEMENT, Engine Oil.>

5) Disconnect the connector of the oil level switch from the engine harness.

Subaru Outback. Lubrication

6) Remove the clip holding the oil level switch harness.

Subaru Outback. Lubrication

Subaru Outback. Lubrication

7) Remove the oil level switch from the cylinder block lower.

Subaru Outback. Lubrication

B: INSTALLATION

1) Install the oil level switch to the cylinder block lower.

NOTE:

Tightening torque: 6.4 N*m (0.7 kgf-m, 4.7 ft-lb)

Subaru Outback. Lubrication

2) Hold the oil level switch harness with the clip.

Subaru Outback. Lubrication

Subaru Outback. Lubrication

3) Connect the connector of the oil level switch to the engine harness.

Subaru Outback. Lubrication

4) Install the under cover. <Ref. to EI-35, INSTALLATION, Front Under Cover.>

5) Lower the vehicle.

6) Refill the engine oil. <Ref. to LU(H4SO)-13, REPLACEMENT, Engine Oil.>

7) Check the engine oil level. <Ref. to LU(H4SO)- 13, INSPECTION, Engine Oil.>

8) Connect the battery ground terminal.

Subaru Outback. Lubrication

C: WIRING DIAGRAM

Subaru Outback. Lubrication

D: INSPECTION

1. INSPECTION WHEN LOW ENGINE OIL WARNING LIGHT IS ILLUMINATED

Subaru Outback. Lubrication

Subaru Outback. Lubrication

Subaru Outback. Lubrication

Subaru Outback. Lubrication

2. OTHER INSPECTIONS

1) Check that the oil level switch does not have deformation, cracks, or damage.

2) Check the oil level switch installation part for oil leakage and oil seepage.

Engine Lubrication System Trouble in General

A: INSPECTION

Before performing diagnostics, make sure that the engine oil level is correct and no oil leakage exists.

Subaru Outback. Lubrication

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