P05.10-2353-11
1 Chain tensioner
1a Pressure pin
2 Timing case cover
P05.10-2354-08
3 Cap
4 Left exhaust camshaft
| Removing | ||
1 | Detach ground lines from batteries | ||
2 | Rotate engine at crankshaft center bolt in direction of engine rotation to a 40° crankshaft angle after ignition TDC | | |
3 | Detach connector for circuit 61 (D+) from alternator and remove alternator from timing case cover (2) | The alternator remains with its attached line for circuit 30 (B+) in the engine compartment, see: | |
Remove/install alternator. | |||
4 | Remove chain tensioner (1) from timing case cover (2) | ||
| Install | ||
5 | Screw new chain tensioner (1) into timing case cover (2) and tightened to prescribed torque | Replace chain tensioner (1). The previously installed chain tensioner (1) must not be reinstalled since, on removal of pressure bolt (1a), it is pressed into the end position and the locking device of the pressure bolt prevents its return stroke. This would overstretch the timing chain on reinstalling. | |
| |||
6 | Remove cap (3) | ||
7 | Turn engine at center bolt on the crankshaft with prescribed torque against direction of engine rotation (arrow), while counterholding left exhaust camshaft (4) at rear with a suitable tool | This unlocks the chain tensioner (1). | |
| |||
8 | Rotate engine at center bolt for crankshaft in direction of engine rotation by a 90° crank angle | The thrust pin (1a) for chain tensioner (1) will be pushed out and tensions the timing chain. | |
9 | Install end cover (3) | ||
10 | Attach connector for circuit 61 (D+) and mount alternator on timing case cover (2) | See: | |
Remove/install alternator. | |||
11 | Mount ground lines on batteries | ||
Danger! | Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running | Secure vehicle to prevent it from moving by itself. | |
12 | Carry out an engine test run and check engine for leaks |
Timing chain, chain tensioner
Number | Designation | Engine | Engine | ||
BA05.10-P-1008-01B | Chain tensioner on timing case | M221.5 | Nm | 70 | 70 |
BA05.10-P-1009-01B | Torque on unlock chain tensioner | Nm | 70 | 70 | |
Wrench socket
001 589 65 09 00
참조 문서
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