Oil Pan Upper

NOTE: Before installing the oil pan upper, clean the mating surface of oil pan upper and cylinder block.

Attach the stud bolts to the oil pan upper.
Attach the oil strainer to the oil pan upper.
NOTE: Use new O-rings.
Attach the baffle plate to the oil pan upper.
Tightening torque:

T1: 6.4 N.m (0.7 kgf-m, 4.7 ft-lb)

T2: 10 N.m (1.0 kgf-m, 7.4 ft-lb)

T3: 18 N.m (1.8 kgf-m, 13.3 ft-lb)

T4: 41.7 N.m (4.3 kgf-m, 30.8 ft-lb)

Fig 1: Identifying Oil Pan And Strainer Components With Tightening Torques
Courtesy of SUBARU OF AMERICA, INC.
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.
CAUTION: Be careful not to apply any liquid gasket to the O-ring.
NOTE:
- Use new O-rings.
- Install within 5 min. after applying liquid gasket.
- Apply liquid gasket 1.5 mm (0.0591 in) outside from the chamfer surface. However, application of liquid gasket on the chamfer surface around the bolt hole is allowed.
Liquid gasket:

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

Liquid gasket applying diameter:

5±1 mm (0.1969±0.0394 in)

Fig 2: Applying Liquid Gasket To Mating Surface Of Oil Pan Upper
Courtesy of SUBARU OF AMERICA, INC.
Tighten the bolts to install the oil pan upper to the cylinder block in the numerical order.
NOTE: 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)

Fig 3: Identifying Oil Pan Upper To Cylinder Block Mounting Bolts Tightening Sequence
Courtesy of SUBARU OF AMERICA, INC.
Install the oil level switch on the oil pan upper, and secure the harness with clips (A).
NOTE:
- Use new O-rings.
- Apply a coat of engine oil to the O-rings.
Tightening torque:

6.4 N.m (0.7 kgf-m, 4.7 ft-lb)

Fig 4: Locating Oil Lever Switch Harness Securing Bolt
Courtesy of SUBARU OF AMERICA, INC.
Install the oil pan. Refer to OIL PAN .
Install the water pipe assembly. Refer to WATER PUMP .
Install the thermostat cover. Refer to INSTALLATION .
Install the water pump. Refer to INSTALLATION .
Lower the vehicle.
Install the engine to the vehicle. Refer to INSTALLATION .
Refill the engine oil. Refer to REPLACEMENT .