LUBRICATION(H4DO)
LU(H4DO)

LUBRICATION(H4DO) > General Description
SPECIFICATION

Lubrication method | Forced lubrication type
Oil pump | Pump type | Trochoid type
Number of teeth | pcs. | Inner rotor | 10
Outer rotor | 11
Outer rotor diameter × Thickness | mm (in) | 71.4× 14 (2.81×0.55)
Performance (Oil temperature 120°C (248°F)) | 600 r/min | Discharge pressure | kPa (kg/cm2, psi) | 34 (0.3, 4.9)
Discharge rate | L (US qt, Imp qt)/min | 5.8 (6.1, 5.1) or more
6,000 r/min | Discharge pressure | kPa (kg/cm2, psi) | 298 (3.0, 43.2)
Discharge rate | L (US qt, Imp qt)/min | 46.6 (49.3, 41.0) or more
Relief valve working pressure (2-step relief) | 1st opening pressure | kPa (kg/cm2, psi) | 150 (1.5, 21.7)
Main opening pressure | kPa (kg/cm2, psi) | 700 (7.1, 101.5)
Oil filter | Filter type | Full-flow filter type
Filtration area | cm2 (sq in) | 1,100 (171)
By-pass valve opening pressure | kPa (kg/cm2, psi) | 160 (1.6, 23.2)
Outer diameter × Width | mm (in) | 68 × 85 (2.68×3.35)
Installation screw specifications | M 20 ×1.5
Oil pressure switch | Type | Immersed contact point type
Operating voltage | V | 12
Warning light operating pressure | kPa (kg/cm2, psi) | 14.7 (0.1, 2.1)
Proof pressure | kPa (kg/cm2, psi) | 981 (10.0, 142.2)
Engine oil | Total capacity (at overhaul) | L (US qt, Imp qt) | 5.1 (5.4, 4.5)
When replacing engine oil and oil filter | L (US qt, Imp qt) | 4.2 (4.4, 3.7)
When replacing engine oil only | L (US qt, Imp qt) | 4.0 (4.2, 3.5)

Engine oil:

Refer to “RECOMMENDED MATERIALS” for engine oil. RECOMMENDED MATERIALS > GREASE

LUBRICATION(H4DO) > General Description
COMPONENT
1. OIL PAN

(A) | To engine unit |  |  |
(1) | O-ring | (7) | Baffle plate | Tightening torque: N·m (kgf-m, ft-lb)
(2) | Oil strainer | (8) | O-ring | T1: | 6.4 (0.7, 4.7)
(3) | Oil pan upper | (9) | Oil pan | T2: | 10 (1.0, 7.4)
(4) | O-ring | (10) | Gasket | T3: | 41.7 (4.3, 30.8)
(5) | Oil level switch | (11) | Gasket | T4: | LUBRICATION(H4DO)>Oil Pan>INSTALLATION > OIL PAN
(6) | Stud bolt | (12) | Drain plug | T5: | LUBRICATION(H4DO)>Oil Pan>INSTALLATION > OIL PAN UPPER

2. OIL FILTER AND OIL LEVEL GAUGE

(1) | Oil level gauge | (8) | Oil filter | Tightening torque: N·m (kgf-m, ft-lb)
(2) | O-ring | (9) | Oil pump union | T1: | 1.5 (0.2, 1.1)
(3) | Oil level gauge guide | (10) | Oil filler cap | T2: | 6.4 (0.7, 4.7)
(4) | O-ring | (11) | Gasket | T3: | 16 (1.6, 11.8)
(5) | Oil pressure switch |  |  | T4: | 18 (1.8, 13.3)
(6) | Engine oil temperature sensor |  |  | T5: | 45 (4.6, 33.2)
(7) | Gasket |  |  | T6: | LUBRICATION(H4DO)>Oil Filter>INSTALLATION > OIL FILTER

3. OIL PIPE

(1) | Union bolt | (3) | Oil pipe | Tightening torque: N·m (kgf-m, ft-lb)
(2) | Gasket |  |  | T: | LUBRICATION(H4DO)>Oil Pipe>INSTALLATION

LUBRICATION(H4DO) > General Description
CAUTION

- When performing service operation, refer to “Repair Contents” in “General Description”. REPAIR CONTENTS>Repair Contents

- Prior to starting work, pay special attention to the following:

  1. Always wear work clothes, a work cap, and protective shoes. Additionally, wear a helmet, protective goggles, etc. if necessary.

  2. Protect the vehicle using a seat cover, fender cover, etc.

  3. Prepare the service tools, clean cloth, containers to catch grease and oil, etc.

- Prevent scattering of grease and oil. If it scatters, wipe it off immediately to prevent it from penetrating the floor or flowing out, to protect the environmental.

- If the grease and oil is spilt over the engine, exhaust pipe or the under cover, completely wipe it off to avoid emission of smoke or causing a fire.

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

- When performing a repair, identify the cause of trouble and avoid unnecessary work.

- Before disconnecting connectors of sensors or units, be sure to disconnect the ground terminal from the battery sensor.

- Always use the jack-up point when the lifting device, shop jacks or rigid racks are used to support the vehicle.

- Before starting works, remove dirt and corrosion around the target area.

- Keep the removed parts in order and protect them from dust and dirt.

- All removed parts, if to be reused, should be reinstalled in the original positions with attention to the correct directions, etc.

- For the parts except for the non-reusable parts, replace then with new parts if necessary.

- Be sure to tighten bolts and nuts to the specified torque.

- Always use new application oil during work.

- Follow all government and local regulations concerning disposal of refuse when disposing of engine oil.

LUBRICATION(H4DO) > General Description
PREPARATION TOOL
1. SPECIAL TOOL

ILLUSTRATION | TOOL NUMBER | DESCRIPTION | REMARKS
| 18332AA000 | OIL FILTER WRENCH | Used for removing and installing oil filter.
| 18360AA040 | HANGER | Used for removing and installing oil level switch. Used together with BOLT (18363AA050).
| 18363AA050 | BOLT | Used for removing and installing oil level switch. Used together with HANGER (18360AA040).
| 18460AA180 | CHECK BOARD | Used for measuring voltage and resistance of ECM terminals.
| — | SUBARU SELECT MONITOR 4 | Used for setting of each function and troubleshooting for electrical system. For detailed operation procedures, refer to “Help” of application.

2. GENERAL TOOL

TOOL NAME | REMARKS
Oil pan seal cutter | Used for removing oil pan.
Circuit tester | Used for measuring resistance, voltage and current.
DST-i | Used together with Subaru Select Monitor 4.

LUBRICATION(H4DO) > Oil Pressure System
WIRING DIAGRAM
LUBRICATION(H4DO) > Oil Pressure System
INSPECTION

INSPECTION WHEN OIL PRESSURE WARNING LIGHT IS ILLUMINATED

1. CHECK DTC.

Read the DTC using Subaru Select Monitor. COMMON(diag)>Diagnostic Trouble Code (DTC)>OPERATION

Is DTC detected?

(1) Repair the corresponding system.

(2) 2

2

2. CHECK ENGINE OIL LEVEL.

Check the engine oil level. LUBRICATION(H4DO)>Engine Oil>INSPECTION

Is engine oil level normal?

3

(1) Adjust the engine oil level to a proper amount.

(2) 3

3. CHECK OIL PRESSURE WARNING LIGHT.

Start the engine, and check if the oil pressure warning light goes off.

Does the oil pressure warning light go off?

System is normal.

Restore the vehicle to its original state.

4

4. CHECK OIL PRESSURE SWITCH.
1.

Turn the ignition to OFF.

2.

Disconnect the ground terminal from battery sensor. REPAIR CONTENTS>NOTE > BATTERY

3.

Disconnect the terminal from oil pressure switch, and wrap the terminal with vinyl tape for insulation.

4.

Connect the ground terminal to battery sensor. REPAIR CONTENTS>NOTE > BATTERY

5.

Start the engine.

6.

Check if the oil pressure warning light goes off.

Does the oil pressure warning light go off?

6

5

5. CHECK INSULATION OF HARNESS BETWEEN COMBINATION METER AND OIL PRESSURE SWITCH.
1.

Turn the ignition to OFF.

2.

Disconnect the ground terminal from battery sensor. REPAIR CONTENTS>NOTE > BATTERY

3.

Disconnect the connector from the combination meter.

4.

Check insulation of harness and chassis ground between combination meter and oil pressure switch.

Are they insulated?

(1) Replace the combination meter. INSTRUMENTATION/DRIVER INFO>Combination Meter

(2) Restore the vehicle to its original state.

(1) Repair the harness between combination meter and oil pressure switch.

(2) Restore the vehicle to its original state.

6. CHECK OIL PRESSURE.

Check the oil pressure by using the oil pressure gauge. MECHANICAL(H4DO)>Engine Oil Pressure>INSPECTION

Is the oil pressure is normal?

(1) Replace the oil pressure switch. LUBRICATION(H4DO)>Oil Pressure Switch

(2) Restore the vehicle to its original state.

Repair the engine assembly.

LUBRICATION(H4DO) > Engine Oil
INSPECTION

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

- If the engine oil is spilt over the engine, exhaust pipe or the under cover, completely wipe it off to avoid emission of smoke or causing a fire.

Engine oil:

Refer to “RECOMMENDED MATERIALS” for engine oil. RECOMMENDED MATERIALS > GREASE

1.

Park the vehicle on a level surface.

2.

Pull out the oil level gauge, and wipe away the oil.

3.

Insert the oil level gauge all the way.

Be sure that the oil level gauge is correctly inserted and properly orientated.

4.

Pull out the oil level gauge, and check both sides of the oil level gauge. Use a lower side to determine the engine oil level.

If the engine oil level is below the “L” line, check for oil leakage, and add oil up to the “F” line.

5.

Start the engine, and confirm that the oil pressure warning light goes off.

6.

After turning off the engine, wait a few minutes until the engine oil returns back to the oil pan, then check the oil level.

- Be careful not to add oil above the “F” line when the engine is cold.

- As the oil level gauge is used for daily inspection, standard of “F” line and “L” line of the oil level gauge is set for the condition that engine is cold.

(A) | Oil level gauge | (C) | “F” line | (E) | Approx. 1.0 L (1.1 US qt, 0.9 Imp qt)
(B) | Oil filler cap | (D) | “L” line |  |

LUBRICATION(H4DO) > Engine Oil
REPLACEMENT

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

- If the engine oil is spilt over the engine, exhaust pipe or the under cover, completely wipe it off to avoid emission of smoke or causing a fire.

Engine oil:

Refer to “RECOMMENDED MATERIALS” for engine oil. RECOMMENDED MATERIALS > GREASE

Engine oil capacity:

Refer to “SPECIFICATION” for engine oil capacity. LUBRICATION(H4DO)>General Description>SPECIFICATION

1.

Remove the oil filler cap.

2.

Remove the clips and turn the engine oil drain cover 180°.

3.

Drain engine oil by loosening the drain plug.

4.

Install the drain plug using a new gasket.

Tightening torque:

41.7 N·m (4.3 kgf-m, 30.8 ft-lb)

5.

Turn the engine oil drain cover 180° back to the original position, and install the clips.

6.

Add engine oil up to the “F” line on oil level gauge.

7.

Install the oil filler cap.

8.

Check the engine oil level. LUBRICATION(H4DO)>Engine Oil>INSPECTION

LUBRICATION(H4DO) > Oil Filter
REMOVAL

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

- If the engine oil is spilt over the engine, exhaust pipe or the under cover, completely wipe it off to avoid emission of smoke or causing a fire.

1. OIL FILTER
1.

Remove the oil filter.

If there is water or dust on the oil filter installation portion, clean it before removing the oil filter.

Special tool:

OIL FILTER WRENCH (18332AA000)

2. OIL PUMP UNION
1.

Remove the oil filter. LUBRICATION(H4DO)>Oil Filter>REMOVAL > OIL FILTER

2.

Remove the oil pump union.

LUBRICATION(H4DO) > Oil Filter
INSTALLATION
1. OIL FILTER

Do not tighten excessively, or engine oil may leak.

1.

Clean the oil filter installation surface.

2.

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

3.

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

4.

Further tighten the oil filter by approx. one rotation after the seal rubber of the oil filter comes in contact with the installation surface.

When using a torque wrench, tighten to 14 N·m (1.4 kgf-m, 10.3 ft-lb).

Special tool:

OIL FILTER WRENCH (18332AA000)

5.

Check the engine oil level and replenish the engine oil if necessary. LUBRICATION(H4DO)>Engine Oil>INSPECTION

2. OIL PUMP UNION
1.

Install the oil pump union.

Tightening torque:

45 N·m (4.6 kgf-m, 33.2 ft-lb)

2.

Install the oil filter. LUBRICATION(H4DO)>Oil Filter>INSTALLATION > OIL FILTER

LUBRICATION(H4DO) > Oil Filter
INSPECTION
1.

Check for oil leaks.

2.

Check that there is no deformation, cracks or other damages.

3.

Check the oil passages for clogging.

LUBRICATION(H4DO) > Oil Pump
SPECIFICATION

Oil pump is integrated with the chain cover.

Refer to “Chain Cover” for removal and installation procedures.

- MECHANICAL(H4DO)>Chain Cover>REMOVAL

- MECHANICAL(H4DO)>Chain Cover>INSTALLATION

LUBRICATION(H4DO) > Oil Pan
REMOVAL

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

- If the engine oil is spilt over the engine, exhaust pipe or the under cover, completely wipe it off to avoid emission of smoke or causing a fire.

1. OIL PAN
1.

Disconnect the ground terminal from battery sensor. REPAIR CONTENTS>NOTE > BATTERY

2.

Drain engine coolant. COOLING(H4DO)>Engine Coolant>REPLACEMENT > DRAINING OF ENGINE COOLANT

3.

Drain the engine oil. LUBRICATION(H4DO)>Engine Oil>REPLACEMENT

4.

Remove the center water pipe. COOLING(H4DO)>Water Pipe>REMOVAL > CENTER WATER PIPE

5.

Remove the stabilizers. FRONT SUSPENSION>Stabilizer>REMOVAL

6.

Remove the bolts which hold the oil pan.

7.

Insert an oil pan seal cutter into the gap between oil pan and oil pan upper, and remove the oil pan.

- Use a container or cloth to catch the engine oil in order to prevent it from splashing.

- Do not use the tools other than the oil pan seal cutter, in order to prevent damaging the oil pan and oil pan upper.

- Do not twist with excessive force. The oil pan may be deformed.

When removing, open the front side of the oil pan first, in order to avoid the interference with the oil strainer.

8.

Remove the gasket from the oil pan.

9.

Remove the liquid gasket from the oil pan and the oil pan upper.

10.

When removing the oil strainer

(1)

Remove the chain cover. MECHANICAL(H4DO)>Chain Cover>REMOVAL

(2)

Remove the oil strainer.

2. OIL PAN UPPER
1.

Remove the engine assembly. MECHANICAL(H4DO)>Engine Assembly>REMOVAL

2.

Remove the water pipe RH. COOLING(H4DO)>Water Pipe>REMOVAL > WATER PIPE RH

3.

Remove the water pipe LH. COOLING(H4DO)>Water Pipe>REMOVAL > WATER PIPE LH

4.

Remove the center water pipe. COOLING(H4DO)>Water Pipe>REMOVAL > CENTER WATER PIPE

5.

Remove the inlet engine coolant temperature sensor. FUEL INJECTION (FUEL SYSTEMS)(H4DO)>Engine Coolant Temperature Sensor>REMOVAL > INLET ENGINE COOLANT TEMPERATURE SENSOR

6.

Remove the oil pan and oil strainer. LUBRICATION(H4DO)>Oil Pan>REMOVAL > OIL PAN

7.

Remove the oil pan upper from the cylinder block.

Pry the points shown in the figure with a crowbar wrapped by protective tape, and then remove the oil pan upper.

8.

Remove the O-ring from the cylinder block.

9.

Remove the liquid gasket from oil pan upper and cylinder block.

LUBRICATION(H4DO) > Oil Pan
INSTALLATION
1. OIL PAN
1.

When removing the oil strainer

(1)

Temporarily install the oil strainer.

(2)

Tighten the bolts in the numerical order as shown in the figure.

Tightening torque:

6.4 N·m (0.7 kgf-m, 4.7 ft-lb)

(3)

Install the chain cover. MECHANICAL(H4DO)>Chain Cover>INSTALLATION

2.

Install a new gasket to the oil pan.

3.

Apply liquid gasket to the mating surface of the oil pan as shown in the figure, and install the oil pan.

- Before applying liquid gasket, degrease the old liquid gasket seal surface of the oil pan and the oil pan upper.

- Install within 5 min. after applying liquid gasket.

Liquid gasket:

THREE BOND 1217G (Part No. K0877Y0100), THREE BOND 1217H or equivalent

Liquid gasket applying diameter:

4.5±0.5 mm (0.1772±0.0197 in)

(A) | 10.5 mm (0.4134 in) or more, 13.5 mm (0.5315 in) or less | (B) | ⌀4.5±0.5 mm (0.1772±0.0197 in) | (C) | Liquid gasket applying position of mating surface

4.

Tighten the bolts in the numerical order as shown in the figure.

Tightening torque:

6.4 N·m (0.7 kgf-m, 4.7 ft-lb)

5.

Install the stabilizer. FRONT SUSPENSION>Stabilizer>INSTALLATION

6.

Install the center water pipe. COOLING(H4DO)>Water Pipe>INSTALLATION > CENTER WATER PIPE

7.

Fill engine oil. LUBRICATION(H4DO)>Engine Oil>REPLACEMENT

8.

Connect the ground terminal to battery sensor. REPAIR CONTENTS>NOTE > BATTERY

9.

Fill engine coolant. COOLING(H4DO)>Engine Coolant>REPLACEMENT > FILLING OF ENGINE COOLANT

2. OIL PAN UPPER
1.

Install a new O-ring to the cylinder block.

2.

Apply liquid gasket to the mating surface of the oil pan upper as shown in the figure, and install the oil pan upper to the cylinder block.

- Before applying liquid gasket, degrease the old liquid gasket seal surface of the oil pan upper and the cylinder block.

- Install within 5 min. after applying liquid gasket.

- Application of liquid gasket on the chamfer surface around the bolt hole is allowed.

Liquid gasket:

THREE BOND 1217G (Part No. K0877Y0100), THREE BOND 1217H or equivalent

Liquid gasket applying diameter:

4±0.5 mm (0.1575±0.0197 in)

(A) | 0 mm (0 in) or more, 2.0 mm (0.0787 in) or less | (C) | Chamfer edge | (D) | Liquid gasket applying position of mating surface
(B) | ⌀4±0.5 mm (0.1575±0.0197 in) |  |  |  |

3.

Tighten the bolts in the numerical order as shown in the figure.

After tightening, if the liquid gasket is squeezed out onto the seal surface of the chain cover, completely remove any squeezed-out liquid gasket.

Tightening torque:

18 N·m (1.8 kgf-m, 13.3 ft-lb)

4.

Install the oil pan and oil strainer. LUBRICATION(H4DO)>Oil Pan>INSTALLATION > OIL PAN

5.

Install the inlet engine coolant temperature sensor. FUEL INJECTION (FUEL SYSTEMS)(H4DO)>Engine Coolant Temperature Sensor>INSTALLATION > INLET ENGINE COOLANT TEMPERATURE SENSOR

6.

Install the center water pipe. COOLING(H4DO)>Water Pipe>INSTALLATION > CENTER WATER PIPE

7.

Install the water pipe LH. COOLING(H4DO)>Water Pipe>INSTALLATION > WATER PIPE LH

8.

Install the water pipe RH. COOLING(H4DO)>Water Pipe>INSTALLATION > WATER PIPE RH

9.

Install the engine. MECHANICAL(H4DO)>Engine Assembly>INSTALLATION

10.

Fill engine oil. LUBRICATION(H4DO)>Engine Oil>REPLACEMENT

11.

Connect the ground terminal to battery sensor. REPAIR CONTENTS>NOTE > BATTERY

12.

Fill engine coolant. COOLING(H4DO)>Engine Coolant>REPLACEMENT > FILLING OF ENGINE COOLANT

LUBRICATION(H4DO) > Oil Pan
DISASSEMBLY
1. OIL PAN UPPER
1.

Remove the water pump. COOLING(H4DO)>Water Pump>REMOVAL > WATER PUMP

2.

Remove the thermostat cover. COOLING(H4DO)>Thermostat>REMOVAL > THERMOSTAT COVER

3.

Remove the oil level switch. LUBRICATION(H4DO)>Oil Level Switch>REMOVAL

4.

Remove the baffle plate (A).

5.

Remove the stud bolt (B).

LUBRICATION(H4DO) > Oil Pan
ASSEMBLY
1. OIL PAN UPPER
1.

Install the stud bolt.

Tightening torque:

10 N·m (1.0 kgf-m, 7.4 ft-lb)

2.

Install the baffle plate.

Tightening torque:

6.4 N·m (0.7 kgf-m, 4.7 ft-lb)

3.

Install the oil level switch. LUBRICATION(H4DO)>Oil Level Switch>INSTALLATION

4.

Install the thermostat cover. COOLING(H4DO)>Thermostat>INSTALLATION > THERMOSTAT COVER

5.

Install the water pump. COOLING(H4DO)>Water Pump>INSTALLATION > WATER PUMP

LUBRICATION(H4DO) > Oil Pan
INSPECTION
1.

Check for oil leaks.

2.

Check that there is no deformation, cracks or other damages.

3.

Check the oil passages for clogging.

LUBRICATION(H4DO) > Oil Pressure Switch
REMOVAL

If the engine oil is spilt over the engine, exhaust pipe or the under cover, completely wipe it off to avoid emission of smoke or causing a fire.

1.

Disconnect the ground terminal from battery sensor. REPAIR CONTENTS>NOTE > BATTERY

2.

Remove the rubber cap and disconnect the terminal.

3.

Remove the oil pressure switch.

Use cloth to catch the engine oil in order to prevent it from splashing.

4.

Remove seal material from the oil pressure switch and the thread portions of the chain cover.

LUBRICATION(H4DO) > Oil Pressure Switch
INSTALLATION
1.

Apply seal material to the bolt threads of oil pressure switch, and install the oil pressure switch.

Before applying the seal material, degrease the oil pressure switch and the thread portions of the chain cover.

Seal material:

THREE BOND 1324 (Part No. 004403042) or equivalent

Tightening torque:

18 N·m (1.8 kgf-m, 13.3 ft-lb)

2.

Connect the terminal, and attach the rubber cap.

Tightening torque:

1.5 N·m (0.2 kgf-m, 1.1 ft-lb)

Fix the terminal within the range of 90° as shown in the figure.

(A) | Upper side of the engine |  |  |  |

3.

Check the engine oil level and replenish the engine oil if necessary. LUBRICATION(H4DO)>Engine Oil>INSPECTION

4.

Connect the ground terminal to battery sensor. REPAIR CONTENTS>NOTE > BATTERY

LUBRICATION(H4DO) > Oil Pressure Switch
INSPECTION
1.

Check for oil leaks.

2.

Check that there is no deformation, cracks or other damages.

LUBRICATION(H4DO) > Oil Pipe
REMOVAL

If the engine oil is spilt over the engine, exhaust pipe or the under cover, completely wipe it off to avoid emission of smoke or causing a fire.

1.

Remove the collector cover. INTAKE (INDUCTION)(H4DO)>Collector Cover>REMOVAL

2.

Remove the clip from the air intake boot, and loosen the clamp.

3.

Remove the air intake boot, and place it aside so that it does not interfere with the work.

Be careful not to pull out the PCV hose.

4.

Remove the union bolt and bolt, and remove the oil pipe.

Use cloth to catch the engine oil in order to prevent it from splashing.

LUBRICATION(H4DO) > Oil Pipe
INSTALLATION
1.

Apply engine oil to the threaded portion for mounting the union bolt on the vacuum pump and cam carrier.

2.

Use a new gasket to temporarily attach the oil pipe.

3.

Tighten the union bolts and bolt in the numerical order as shown in the figure.

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)

4.

Install the air intake boot. INTAKE (INDUCTION)(H4DO)>Air Intake Boot>INSTALLATION

5.

Install the collector cover. INTAKE (INDUCTION)(H4DO)>Collector Cover>INSTALLATION

6.

Check the engine oil level and replenish the engine oil if necessary. LUBRICATION(H4DO)>Engine Oil>INSPECTION

LUBRICATION(H4DO) > Oil Pipe
INSPECTION
1.

Check for oil leaks.

2.

Check that there is no deformation, cracks or other damages.

3.

Check the oil passages for clogging.

LUBRICATION(H4DO) > Oil Level Switch
REMOVAL

If the engine oil is spilt over the engine, exhaust pipe or the under cover, completely wipe it off to avoid emission of smoke or causing a fire.

1.

Remove the striker assembly front hood. EXTERIOR BODY PANELS>Front Hood>DISASSEMBLY

2.

Fully open the panel COMPL front hood. REPAIR CONTENTS>NOTE > STAY ASSEMBLY FRONT HOOD

3.

Disconnect the ground terminal from battery sensor. REPAIR CONTENTS>NOTE > BATTERY

4.

Remove the collector cover. INTAKE (INDUCTION)(H4DO)>Collector Cover>REMOVAL

5.

Remove the air intake duct. INTAKE (INDUCTION)(H4DO)>Air Intake Duct>REMOVAL

6.

Remove the clip from the air intake boot, and loosen the clamp.

7.

Remove the air intake boot, and place it aside so that it does not interfere with the work.

Be careful not to pull out the PCV hose.

8.

Remove the TCM. CONTINUOUSLY VARIABLE TRANSMISSION(TR580)>Transmission Control Module (TCM)>REMOVAL

9.

Turn the transmission harness clockwise till the bolt hole can be seen as shown in the figure, and tighten the bolt to temporarily lock the harness.

10.

Drain the engine oil. LUBRICATION(H4DO)>Engine Oil>REPLACEMENT

11.

Remove the front exhaust pipe. EXHAUST(H4DO)>Front Exhaust Pipe>REMOVAL

12.

Remove the nuts which secure the engine mounting to the crossmember COMPL front.

13.

Remove the electric power steering gearbox. POWER ASSISTED SYSTEM (POWER STEERING)>Electric Power Steering Gearbox>REMOVAL

14.

Remove the front drive shaft LH. PROPELLER SHAFT / DRIVE SHAFT / AXLE>Front Drive Shaft>REMOVAL

15.

Attach the ST1 and ST2.

Preparation tool:

ST1: BOLT (18363AA050)

ST2: HANGER (18360AA040)

Tightening torque:

43 N·m (4.4 kgf-m, 31.7 ft-lb)

16.

Lift up the engine with a lifting device and wire ropes.

When lifting up the engine, pay attention to the clearance of each part and be careful not to lift the engine too much, in order to prevent damaging the vehicle.

(A) | To engine rear hanger | (B) | To special tool |  |

17.

Remove the engine mounting LH.

18.

Disconnect the connector and remove the clips.

19.

Remove the clip to remove the oil level switch.

LUBRICATION(H4DO) > Oil Level Switch
INSTALLATION
1.

Use a new O-ring to install the oil level switch, and install the clip to the oil pan upper.

Apply engine oil to O-ring.

Tightening torque:

6.4 N·m (0.7 kgf-m, 4.7 ft-lb)

2.

Secure the oil level switch harness with clip, and connect the connector.

3.

Install the engine mounting LH.

Tightening torque:

35 N·m (3.6 kgf-m, 25.8 ft-lb)

4.

Lower the engine and remove the lifting device and wire ropes.

5.

Remove the ST.

6.

Install the front drive shaft LH. PROPELLER SHAFT / DRIVE SHAFT / AXLE>Front Drive Shaft>INSTALLATION

7.

Install the electric power steering gearbox. POWER ASSISTED SYSTEM (POWER STEERING)>Electric Power Steering Gearbox>INSTALLATION

8.

Install the nuts which hold the engine mounting to the crossmember COMPL front.

Be sure to use a new nut.

Make sure that locators (a) of the engine mounting are securely inserted.

Tightening torque:

90 N·m (9.2 kgf-m, 66.4 ft-lb)

9.

Install the front exhaust pipe. EXHAUST(H4DO)>Front Exhaust Pipe>INSTALLATION

10.

Install the transmission harness in original position.

Tightening torque:

7 N·m (0.7 kgf-m, 5.2 ft-lb)

11.

Install the TCM. CONTINUOUSLY VARIABLE TRANSMISSION(TR580)>Transmission Control Module (TCM)>INSTALLATION

12.

Install the air intake boot. INTAKE (INDUCTION)(H4DO)>Air Intake Boot>INSTALLATION

13.

Install the air intake duct.

14.

Install the collector cover. INTAKE (INDUCTION)(H4DO)>Collector Cover>INSTALLATION

15.

Fill engine oil. LUBRICATION(H4DO)>Engine Oil>REPLACEMENT

16.

Connect the ground terminal to battery sensor. REPAIR CONTENTS>NOTE > BATTERY

17.

Set the panel COMPL front hood to the normal position. REPAIR CONTENTS>NOTE > STAY ASSEMBLY FRONT HOOD

18.

Install the striker assembly front hood. EXTERIOR BODY PANELS>Front Hood>ASSEMBLY

LUBRICATION(H4DO) > Oil Level Switch
WIRING DIAGRAM
LUBRICATION(H4DO) > Oil Level Switch
INSPECTION

Use the check board when measuring the ECM terminal voltage and resistance. ENGINE (DIAGNOSTICS)(H4DO)>General Description>PREPARATION TOOL > HOW TO USE CHECK BOARD

1. INSPECTION WHEN ENGINE OIL LEVEL WARNING LIGHT IS ON
1. CHECK DTC.

Read the DTC using Subaru Select Monitor. COMMON(diag)>Diagnostic Trouble Code (DTC)>OPERATION

Is DTC detected?

(1) Repair the corresponding system.

(2) 2

2

2. CHECK ENGINE OIL LEVEL.

Check the engine oil level. LUBRICATION(H4DO)>Engine Oil>INSPECTION

Is engine oil level normal?

3

(1) Adjust the engine oil level to a proper amount.

(2) 3

3. CHECK ENGINE OIL LEVEL WARNING LIGHT.
1.

Start the engine and warm up completely.

2.

Turn to IG OFF, and wait for one minute or more.

3.

Turn to IG ON.

4.

Check if engine oil level warning light goes off.

Does the engine oil level warning light go off?

System is normal.

Restore the vehicle to its original state.

4

4. CHECK OIL LEVEL SWITCH.
1.

Turn the ignition to OFF.

2.

Disconnect the ground terminal from battery sensor. REPAIR CONTENTS>NOTE > BATTERY

3.

Disconnect the oil level switch connector.

4.

Check continuity between the oil level switch terminal and chassis ground.

Is there continuity?

5

Replace the oil level switch.

Restore the vehicle to its original state.

5. CHECK CONTINUITY OF ENGINE WIRING HARNESS.
1.

Disconnect the ECM connector.

2.

Check continuity between the connector on the engine wiring harness oil level switch side and the connector on the engine wiring harness ECM side.

Is there continuity?

6

(1) Repair the engine wiring harness.

(2) Restore the vehicle to its original state.

6. CHECK COMBINATION METER.
1.

Restore the vehicle to its original state.

2.

Perform the self-diagnosis display mode of combination meter. INSTRUMENTATION/DRIVER INFO>Combination Meter System>OPERATION > SELF-DIAGNOSIS DISPLAY MODE

Is combination meter OK?

(1) Check for poor contact due to the wear of connector pin etc., and if no fault is found, replace the ECM. FUEL INJECTION (FUEL SYSTEMS)(H4DO)>Engine Control Module (ECM)

(2) Restore the vehicle to its original state.

(1) Replace the combination meter. INSTRUMENTATION/DRIVER INFO>Combination Meter

(2) Restore the vehicle to its original state.

2. OTHER INSPECTIONS
1.

Check for oil leaks.

2.

Check that there is no deformation, cracks or other damages.

LUBRICATION(H4DO) > Symptoms and causes
INSPECTION

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

Symptoms | Problem parts etc. | Possible cause
The oil pressure warning light illuminates. | Oil pressure switch | Oil pressure switch failure
Oil filter | Clogging of oil filter, malfunction of by-pass valve
Oil strainer | Clogging of oil strainer
Engine oil passages | Clogging of engine oil passage
Oil pump | Wear or damage of the oil pump
Engine oil | Incorrect engine oil or engine oil deterioration
Wiring harness | Short circuit of wiring harness
The oil pressure warning light does not illuminate. | Combination meter | Defective combination meter
Oil pressure switch | Oil pressure switch failure
Wiring harness | Open circuit of wiring harness