FASTENER TIGHTENING SPECIFICATIONS
| Component | Bolt Size | Nm |
|---|---|---|
| Balance Shaft Exhaust side (1) | 9 | |
| Balance shaft Intake side (1) | 9 | |
| Bearing Bracket (1) | ||
| 9 | ||
| M6 | 8 + 90° | |
| M8 | 20 + 90° | |
| Bracket for Heat Shield | 9 | |
| Camshaft Position Sensor | 9 | |
| Camshaft Timing Chain Guide Rail, Guide Pins | 20 | |
| Chain tensioner | 65 | |
| Control Valve | 35 | |
| Guide rail for the balance shaft timing chain, Guide pins | 20 | |
| Guide rail Guide pins | 20 | |
| Guide Tube for Oil Dipstick | 9 | |
| Heat Shield | 20 | |
| Mounting plate | 9 | |
| Sealing Plugs | 5 | |
| Tensioning rail For timing chain, Guide Pins | 20 | |
| Timing Chain Tensioning Rail | ||
| Bolt | 9 | |
| Guide Pins | 20 | |
| Transport Bracket | 25 | |
| (1) Always replace | ||
| (1) | Always replace |
Timing Chain Upper Cover - Tightening Sequence
Tighten the bolts -1 through 5- in the sequence shown
Tighten the bolts to 9 Nm.
Timing Chain Lower Cover Tightening Sequence
Tighten the bolts -1 through 15- in 2 stages in the sequence shown
1. Tighten the bolts to 8 Nm.
2. Tighten the bolts an additional 45°.
Intermediate Shaft Sprocket Tightening Sequence
| CAUTION | Always replace the intermediate shaft sprocket. Otherwise the backlash will not adjust itself and it could result in engine damage. The new intermediate shaft sprocket has an anti-friction coating that wears off after a short period of use, which automatically adjusts the backlash. |
Tighten with a new bolt as follows
Tighten to 10 Nm using a torque wrench.
Rotate the intermediate shaft sprocket.
The intermediate shaft sprocket must not have any play. Loosen and tighten it again if necessary.
Tighten to 25 Nm using a torque wrench.
Tighten further 90° using a rigid wrench.
Cylinder Head Tightening Sequence
Tighten the cylinder head bolts in -1 to 5- sequence.
Tighten to 40 Nm using a torque wrench.
Tighten further 90° using a rigid wrench.
Tighten further 90° using a rigid wrench.
Tighten the bolts -arrows- to 8 Nm.
Tighten the bolts -arrows- 90° further using a rigid wrench.
Crankcase Ventilation, Tightening Sequence
Note. The bolts are self-tapping. Only use Original bolts when replacing the cylinder head, since the cylinder head is delivered without a thread for the installing the crankcase ventilation. It is not permitted to cut the thread with a thread cutter.
Tighten the crankcase ventilation bolts to 11 Nm in -1 to 10- sequence.
See also:
• Removal and Installation