>>B<< CRANKSHAFT SPROCKET/BALANCER CHAIN/ BALANCER SHAFT AND OIL PUMP MODULE INSTALLATION
1. When the new balancer shaft and oil pump module is installed, supply oil to the oil pump and the balancer shaft bearing in the balancer shaft and oil pump module using the following procedures.(1) Clean the inside of the removed oil pan. Put the balancer shaft and oil pump module carefully into the oil pan so that the oil inlet can be upward.
(2) Pour new engine oil so that the two-third of the balancer shaft and oil pump module can be immersed.
(3) Also, pour new engine oil [approximately 50 cm3 (3.1 cu.in.)] from the oil inlet.
(4) By giving four clockwise rotations or more to the balancer shaft sprocket, the oil is supplied to the oil pump and the balancer shaft bearing.
2. Wipe the dirt on the crankshaft sprocket and the crankshaft using a rag, and then remove the grease from the portion shown in the illustration.| note | Remove grease to prevent a drop in the coefficient of friction of the pressing portion caused by adhesion of oil. |
3. Align the timing mark of the balancer shaft sprocket with that of the balancer shaft and oil pump module.
4. Insert a hexagonal bar wrench [3 mm (0.1 inch)] as illustrated to prevent the balancer shaft sprocket from moving.
5. Loop the balancer chain, aligning its link plate (blue) with the timing mark.
6. Install the crankshaft sprocket on the crankshaft.| note | Do not push in the crankshaft sprocket to the normal position. Push it in only up to the tip of the crankshaft. |
7. While slanting the balancer shaft and oil pump module, align the link plate (blue) of another balancer chain with the timing mark of the crankshaft sprocket to loop. Gradually push in the crankshaft sprocket and fit it into the key groove of the crankshaft. Then, install the balancer shaft and oil pump module on the ladder frame.| note | Make sure that the balancer shaft and oil pump module is completely intimate contact with the ladder frame. |
| note | Make sure that the key groove of the crankshaft is aligned with the contact surface of the cylinder block and ladder frame as shown in the illustration. |
8. Apply an adequate and minimum amount of engine oil to the threads and bearing surfaces of the balancer shaft and oil pump module bolts.
9. Tighten the balancer shaft and oil pump module mounting bolts to the specified torque in the order of number shown in the figure.Tightening torque: 20 N·m (15 ft-lb)
10. Retighten the balancer shaft and oil pump module mounting bolts to the specified torque in the order of number shown in the figure.Tightening torque: 44 N·m (32 ft-lb)
11. Loosen each balancer shaft and oil pump module mounting bolts fully in the reverse sequence to that shown.
12. Tighten the balancer shaft and oil pump module mounting bolts again to the specified torque in the order of number shown in the figure.Tightening torque: 20 N·m (15 ft-lb)
13. After tightening to the specified torque, tighten the balancer shaft and oil pump module mounting bolts to 135 degrees, using special tool MB991614, in the order of number shown in the figure.
14. Pull out the hexagonal bar wrench from the balancer shaft sprocket.
15. Make sure that the respective timing mark is aligned with each other as illustrated.
16. Install the balancer chain tensioner lever and balancer chain guide.
![[Previous]](../../../buttons/fprev.png)
![[Next]](../../../buttons/fnext.png)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
