Withdrawal
1. Remove the toothed belt.
2. Turn out all bolts of fastening of the oil pallet.
3. Remove the oil pan.
4. Remove the oil strainer and O-ring.
5. Remove the oil pump cover.
6. Remove the oil pressure sensor.
7. Turn out bolts of fastening of a balancing shaft.
8. Remove the balancing shaft assembly.
9. Turn out bolts and remove the case of the oil pump and a sealing ring of round section from the block of cylinders.
10. Remove the oil pump cover from the oil pump housing.
Examination
Front cover
1. Check the oil holes for obstructions and clean if necessary.
2. Check the front cover bearings in contact with the balance shafts for wear, damage or jamming.
3. Check the front cover for cracks or damage and replace if necessary.
4. Replace cracked or damaged front cover.
Balance shaft
1. Check the shaft journals for wear or jamming
2. If there is excessive wear or signs of jamming, carefully inspect the bearing.
3. If there are defects, replace the bearing or balancing shaft.
Oil seal
1. Check the oil seal lips for wear and damage.
2. Check the oil seal lips for damage.
Installation
1. Lubricate the gears and align the timing marks on the gears.
2. Apply Locitite272 to the pinion and idler gear mounting bolts.
3. Using special tool 09231-27100, install the crankshaft front oil seal into the oil pump housing.
4. Fill the groove in the oil pump housing with sealant. Sealant: Loctite 5900 or equivalent.
- 1. The thickness of the sealant layer should be about 2.5±0.5mm.
- 2. After applying the sealant, install the oil pump housing for no more than 5 minutes.
5. Install a new O-ring into the oil pump housing and temporarily tighten the pump mounting bolts.
6. Install the oil pump housing with a new O-ring and torque tighten the oil pump mounting bolts. Tightening torque: 20–27 Nm.
7. Establish the block of balancing shafts in the block of cylinders.
8. Apply a layer of sealant to the oil pan flange groove.
- 1. The thickness of the sealant layer should be 3±0.5 mm.
- 2. Install the oil pan within 5 minutes after applying the sealant.
9. Establish the oil pallet and fix bolts, having tightened them the demanded moment. Tightening torque: 10–12 Nm.
10. Using a special tool, screw in the oil pressure sensor, having previously lubricated the threads of the sensor with a layer of sealant. Sealant: Threebond 1104 or equivalent.
Attention! Do not overtighten the pressure sensor with high torque. Pressure sensor tightening torque: 15–22 Nm.