REMOVAL AND INSTALLATION

Removal steps <<A>> >>L<< 1. Oil filter >>K<< 2. Engine oil pressure switch terminal <Except high power engine> <<B>> >>J<< 3. Engine oil pressure switch <Except high power engine> <<C>> >>I<< 4. Engine oil pressure switch <High power engine> 5. O-ring >>H<< 6. Engine oil cooler 7. Gasket 8. Heat protector <Except high power engine> 9. Oil filter bracket 10. Oil filter bracket gasket 11. Oil drain plug 12. Oil drain plug gasket <<D>> >>G<< 13. Oil pan >>G<< 14. Oil pan gasket* 15. Oil screen 16. Oil screen gasket 17. Front upper case 18. Front upper case gasket >>F<< 19. Front upper case oil seal 20. Plug cap 21. O-ring <<E>> >>E<< 22. Flange bolt 23. Front lower case 24. Front lower case gasket >>D<< 25. Crankshaft front oil seal >>C<< 26. Balancer shaft oil seal 27. Plug 28. Relief spring 29. Relief plunger 30. Oil pump cover <<F>> >>B<< 31. Inner rotor <<F>> >>B<< 32. Outer rotor 33. Balancer shaft gear cover >>A<< 34. Balancer shaft driven gear >>A<< 35. Balancer shaft drive gear 36. Balancer shaft, left 37. Balancer shaft, right

Use special tool oil filter wrench (MH061590) or commercially-available tool to remove the oil filter.

Use special tool oil pressure switch wrench (MD998012) to remove the engine oil pressure switch.

Use special tool oil pressure switch wrench (MB992118) to remove the engine oil pressure switch.

2. caution Do not use special tool oil pan FIPG cutter (MD998727) in area A of the oil pan. Using the special tool in area A may cause deformation of the front case because the front case is made of aluminium. Tap the special tool into the range (B) between the cylinder block and the oil pan, and then slide the special tool sideways. note If any surrounding parts interfere with the removal, there is no need to use the special tool. 3.Remove the oil pan.

1.Remove the plug on the right side of cylinder block. 2.Insert a phillips screwdriver into the plug hole to lock the silent shaft in position. 3.Remove the flange bolt.

Put alignment marks on the inner and outer rotors for reference in reassembly.

2.Install the balancer shaft drive and driven gears to the front lower case. Make sure that the alignment marks are in line.

Install the outer rotor in the same direction as before noting the mark put at the time of removal. Apply engine oil to the entire rotor surface.

2.Using special tool balancer shaft drive gear oil seal guide (MD998385), drive in with a socket wrench.

1.Attach special tool crankshaft front oil seal guide (MD998383) to the crankshaft and apply engine oil to the outer surface of the tool. 2.Using special tool crankshaft front oil seal installer (MD998382), install the front oil seal into the front lower case.

1.Insert a phillips screwdriver into the plug hole to block the balancer shaft. 2.Install the flange bolt and tighten to the specification. 3.Remove the screwdriver and install the plug.

Apply engine oil to the oil seal outer surface and drive in with a socket wrench.

1.<Sealant> (1) Remove sealant from the oil pan and cylinder block surfaces. (2) Apply a Φ4 ± 1 mm wide bead of sealant to the entire circumference of the oil pan flange. Specified sealant: ThreeBond 1217G or equivalent note Install the oil pan immediately applying sealant. (3) caution After the installation, until a sufficient period of time (one hour or more) elapses, do not apply the oil or water to the sealant application area or start the engine. Install the oil pan. (4) Tighten the oil pan bolts to the specified torque. Tightening torque: 9.0 ± 3.0 N·m 2.<Gasket> (1) Remove sealant from the oil pan and cylinder block surfaces. (2) Install the oil pan gasket so that its fluorine-coated surface faces the cylinder block side. (3) Install the oil pan. (4) Tighten the oil pan bolts to the specified torque. Tightening torque: 9.0 ± 3.0 N·m

Position the tab as shown in the illustration.

1. caution Use care not to allow the sealant to plug the oil passage. Apply sealant to the engine oil pressure switch thread. Specified sealant: ThreeBond 1141J or equivalent note Install the engine oil pressure switch immediately after applying sealant. 2. caution After the installation, until a sufficient period of time (one hour or more) elapses, do not apply the oil or water to the sealant application area or start the engine. In the same manner as removal, use special tool oil pressure switch wrench (MB992118) to tighten the engine oil pressure switch to the specified torque. Tightening torque: 10 ± 2 N·m

1. caution Do not get any oil (rust prevention oil etc.) on the area as shown in the figure to prevent the influence of switch function. caution Use care not to allow the sealant to plug the oil passage. Apply sealant to the engine oil pressure switch thread. Specified sealant: ThreeBond 1141J or equivalent note Install the engine oil pressure switch immediately after applying sealant. 2. caution After the installation, until a sufficient period of time (one hour or more) elapses, do not apply the oil or water to the sealant application area or start the engine. In the same manner as removal, use special tool oil pressure switch wrench (MD998012) to tighten the engine oil pressure switch to the specified torque. Tightening torque: 10 ± 2 N·m

1.Install the engine oil pressure switch terminal in the direction shown in the illustration. 2.Tighten the engine oil pressure switch terminal mounting screw to the specified torque. Tightening torque: 3.5 ± 0.4 N·m

2.Apply a small amount of engine oil to the new oil filter gasket. 3.For the specified tightening torque, refer to the caution label attached on the oil filter. 4.Tighten the oil filter until the gasket contacts with the installation surface. 5.In the same manner as removal, use special tool oil filter wrench (MH061590) or commercially-available tool to tighten the oil filter to the specified torque.