Oil sump, oil pump, balancer shaft block. I 1. Oil pan; 2. Bolt, 10 Nm; 3. Suction pipe; if dirty, clean the strainer; 4. Bolt, 10 Nm; 5. Seal ring, replace; 6. Oil pump, before installation, check whether both installation sleeves for centering the oil pump are on the balancer shaft module; 7. Oil pump drive shaft; 8. The retaining ring must fit at the base of the groove; a damaged or overtightened retaining ring must be replaced; 9. Balancer shaft gear; 10. Bolt, 20 Nm + 90°, replace; 11. Hub, intermediate gear, replace; 12. Bolt, 90 Nm + 90°, replace; 13. Washer of the thrust bearing, intermediate gear, replace; 14. Replace the intermediate gear; to achieve the required tooth profile clearance, a coating is applied to the new intermediate gear, which ensures the correct clearance due to wear. When installing the intermediate gear, pay attention to the correct fit of the thrust bearing washer, installation position: the part number must be visible; 15. Replace the washer of the thrust bearing and intermediate gear. Take into account the installation position; if necessary, fix the intermediate gear to the housing with lubricant; 16. Spur gear; 17. Guide bushings, centering bushings of the balancer shaft module on the cylinder block; 18. Balancer shaft module, before installation, check that both installation sleeves are in place to center the balancer shaft module on the cylinder block; 19. Bolt, replace; 20. Oil intake pipe; 21. Bolt, 10 Nm; 22. Bolt, 40 Nm; 23. Bolt, 15 Nm, tighten crosswise step by step; 24. Lip seal, replace; 25. Oil drain plug, 30 Nm
Torque Sequence - Balancer Shaft Module with 8 Threads
Tighten the balance shaft module bolts in the following order:
stage | Bolts | Tightening torque/turn angle |
1. | -1...8- | hand tighten in sequence |
2. | -1...8- | pre-tighten in the specified sequence to a torque of 6 Nm |
3- | -1...4- | tighten to 20 Nm |
4. | -5- | tighten with a force of 13 N'M |
5. | -6- | tighten with a force of 20 N'M |
6. | -7- | tighten with a force of 13 N'M |
7. | -8- | tighten with a force of 20 N'M |
8. | -1...8- | tighten with a rigid wrench 90°in sequence |
Torque Sequence - Balancer Shaft Module with 6 Threaded Connections
Tighten the balance shaft module bolts in the following order:
stage | Bolts | Tightening torque/turn angle |
1 | -1...6- | hand tighten in sequence |
2 | -1...6- | Pre-tighten the bolts in sequence to a torque of 6 Nm |
3 | -1...4- | tighten to 20 Nm |
4 | -5 and 6- | tighten to 13 Nm |
5 | -1...6- | tighten with a rigid wrench 90°in sequence |
Oil level and temperature sender -G266-. I 1. Bolt, 15 Nm; 2. Seal ring; replacement; 3. Electrical plug connection; 4. Oil level and temperature sender -G266-
Mounting position of the thrust bearing washer
Make sure that the thrust bearing washer -A- does not slip out of the recesses of the balance shaft module -arrows- when installing the idler gear and is therefore not subsequently pinched. If necessary, secure with grease to the balancer shaft module.
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