Withdrawal
1. Remove the oil filter.
2. Remove the oil pan.
3. Remove the oil receiver and gasket.
4. Remove the relief valve plug and gasket, and then remove the spring and pressure relief valve plunger from the oil filter bracket.
5. Remove the four oil filter bolts and remove the oil filter bracket and gasket.
6. Remove the cap from the front cover at the location of the oil pump.
7. Remove the plug from the left side of the cylinder block and insert a screwdriver with a diameter of 8 mm into the opened hole. The screwdriver shaft must enter the hole to a depth of more than 60 mm.
8. Remove the oil pump driven gear and the left balance shaft mounting bolt.
9. Turn away bolts of a forward cover and remove it and a lining.
10. Remove the two balance shafts of the cylinders.
11. Remove the oil pump cover.
12. Remove the oil pump gears.
Examination
Oil pump
1. Visually inspect gear contact surfaces for staggered wear. If the front cover or oil pump cover has excessive staggered wear, replace the front cover assembly.
2. Check if the oil passages of the front cover and oil pump cover are clogged and clean them if necessary.
Balance shaft
Check the necks for wear and tear. If there is excessive wear or scoring, check the bearings. Replace, if necessary, the balance shaft, bearing, or both.
Oil seals
Check the oil seals installed in the front cover for damage or wear on the working edges. Replace defective seals.
Plunger and pressure reducing valve spring.
1. Insert pressure relief valve plunger into oil filter bracket hole and check for smooth movement. Clean the plunger if necessary or replace it.
2. Check the free length of the spring, replace the spring if it is too compressed.
- The length of the pressure reducing valve spring in the free state - 46.6 mm
Balance shaft bearing
1. Using a special tool (09212—32000), remove the right balance shaft front bearing from the cylinder block.
2. Using a special tool (09212—32100), remove the left balance shaft rear bearing from the cylinder block. At this time, install the special tool (094212—32300) on the front surface of the cylinder block to hold the bearing puller.
3. Using a special tool (094212—32300), install the left balance shaft rear bearing by attaching the special tool (09212—32300), used to remove the bearing.
Warning. Before installing the bearing, apply engine oil to its inner surface.
4. Using a special tool (09212—32200), install the right balance shaft front bearing.
Installation
1. Matching marks are located on the back of each gear.
2. Install the oil pump cover and tighten the five bolts.
- Tightening torque: Oil pump cover bolts - 15-18 Nm
3. Insert the left balance shaft into the oil pump driven gear hole and temporarily tighten the bolt.
4. Install special tool (09214-32100) on the front end of the crankshaft and lubricate it with engine oil. The gland guide has a tapered outer surface. Install the guide so that the smaller diameter end faces the front of the engine.
Note. If the front crankshaft oil seal is already installed, use the special tool (094214-32100) to protect the seal.
5. Install the right balance shaft in the cylinder block.
6. Install a new front cover gasket.
7. When installing the left balance shaft in the cylinder block, install the front cover.
8. Insert a screwdriver into the hole on the left side of the cylinder block to hold the shaft in a certain position, then tighten the fastener.
9. Install the oil filter bracket and gasket, then tighten the front cover mounting bolts.
Torque:
- Front cover bolts - 20-27 Nm
- Oil filter bracket bolt - 15-22 Nm
10. Install the cap.
11. Install the pressure relief valve plug and gasket and tighten the plug.
12. Install the oil receiver and gasket.
13. Clean the mating surfaces of the cylinder block and oil crater.
14. Apply sealant to the oil pan flange recess.
15. Install the oil sump and tighten the bolts to the correct torque.