Oil Pan and Oil Pump Removal and Installation
NOTE: Oil pan must be removed prior to removing oil pump.
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REMOVAL AND INSTALLATION
Required Special Tool: MD998717: Crankshaft Front Oil Seal Installer
Removal Service Point
<> Oil Pan, Lower Removal
1. Remove the lower oil pan mounting bolts.
CAUTION: Do not use a scraper or special tool to remove the oil pan.
2. Remove the lower oil pan by tapping on the side wall with a plastic hammer (mallet) through a wooden plank held against it.
<> Oil Pan, Upper Removal
1. Remove the long bolts "A" shown in the illustration first.
2. Remove all other bolts.
CAUTION: Do not use a scraper or special tool to remove the oil pan.
3. Screw M10 bolts into the two bolt holes in the oil pan to break the joint and remove the oil pan.
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Make alignment dots on the outer and inner rotors for assembly.
Installation Service Points
>>A<< Inner Rotor/Outer Rotor Installation
Apply engine oil to the rotors. Then, install the rotors ensuring that the alignment dots made at disassembly are properly aligned.
>>B<< Oil Pump Case Assembly Installation
1. Clean the gasket mating surfaces of oil pump case and cylinder block.
2. Apply a 3 mm (0.1 inch) diameter bead of sealant (Mitsubishi Genuine Parts number MD970389 or equivalent) to the oil pump case. Apply sealant as indicated by the broken line in the illustration; the grooves must be traced and the bolt holes must be surrounded with a bead of sealant.
3. Install the oil pump case assembly to the front of the cylinder block.
NOTE: Be sure to install the oil pump case quickly while the sealant is wet (within 15 minutes).
4. Tighten the oil pump case mounting bolts to the specified torque.
Tightening torque:
14 ± 1 Nm (122 ± 9 in. lbs.)
41 ± 8 Nm (30 +±6 ft. lbs.)
NOTE: After installation, keep the sealed area away from oil and coolant for approximately one hour.
>>C<< Crankshaft Front Oil Seal Installation
1. Install the guide of special tool MD998717 to the front end of the crankshaft.
2. Apply engine oil to the lip area of a new oil seal and push it in until it contacts the oil pump case.
3. Using special tool MD998717, press-fit the oil seal into the oil pump case.
>>D<< Oil Pan, Upper Installation
1. Clean both gasket surfaces of the upper oil pan and cylinder block.
2. Apply a 4 mm (0.2 inch) diameter bead of sealant (Mitsubishi Genuine Parts number MD970389 or equivalent) to the upper oil pan. Apply sealant as indicated by the broken line in the illustration; the grooves must be traced and the bolt holes must be surrounded with a bead of sealant.
CAUTION: When installing the upper oil pan, be sure not to expel the sealant from the oil pan flange at portion A in the illustration.
3. Install the oil pan to the bottom of the cylinder block.
NOTE: Be sure to install the oil pan quickly while the sealant is wet (within 15 minutes).
4. Tighten the upper oil pan bolts in the sequence shown.
Tightening torque: 5.9 ± 1 Nm (52 ± 9 in. lbs.)
NOTE: After installation, keep the sealed area away from the oil and coolant for approximately one hour.
>>E<< Oil Pan, Lower Installation
1. Clean both gasket surfaces of the upper and lower oil pans.
2. Apply a 4 mm (0.2 inch) diameter bead of sealant (Mitsubishi Genuine Parts number MD970389 or equivalent) to the lower oil pan.
CAUTION: Apply sealant as indicted by the broken line in the illustration; the grooves must be traced and the bolt holes must be surrounded with a bead of sealant.
3. Install the lower oil pan to the upper oil pan.
NOTE: Be sure to install the oil pan quickly while the sealant is wet (within 15 minutes).
4. Tighten the lower oil pan bolts in the sequence shown.
Tightening torque: 11 ± 1 Nm (95 ± 9 in. lbs.)
NOTE: After installation, keep the sealed area away from oil for approximately one hour.
>>F<< Drain Plug Gasket Installation
CAUTION: If the gasket is installed in the wrong direction, oil leaks will be occurred.
Install the drain plug gasket in the direction shown.
>>G<< Oil Filter Installation
1. Clean the installation surface of the filter bracket.
2. Apply engine oil to the O-ring of the oil filter.
3. Install the oil filter to the bracket and tighten it to the specified torque.
Tightening torque: 14 ± 2 Nm (122 ± 17 in. lbs.)
4. If no torque wrench can be used for tightening, follow the following procedure.
1. Screw in the oil filter until its O-ring contacts the oil filter bracket.
2. Tighten the oil filter 3/4 turn.
>>H<< Oil Pressure Switch Installation
CAUTION: Be careful not to block the oil passage with sealant.
1. Apply 3M(tm) AAD Part number 8672 or equivalent to the thread of oil pressure switch.
2. Tighten the switch to the specified torque.
Tightening torque: 10 ± 2 Nm (87 ± 17 in. lbs.)