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| Tighten the bolts -1 ... 20- evenly from the inside outwards. |
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| Turn bolts -1-, -3-, -5-, -7- and -9- of rocker arm shaft 90° (1/4 turn) further. |
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| Connect main connector for unit injectors and glow plugs. |
Installation is carried out in the reverse order; note the following: |
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| Install toothed belt (adjust valve timing): vehicles with small engine support → Anchor, vehicles with large engine support → Anchor |
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| Install cylinder head cover: vehicles with engine codes AZV, BKD → Chapter, vehicles with engine codes BMN, BUY → Chapter. |
Note t
| After installing camshafts, wait for approx. 30 minutes before starting engine. The hydraulic tappets have to settle (otherwise valves will strike pistons). |
t
| After working on the valve gear, turn the engine carefully at least 2 rotations to ensure that none of the valves make contact when the starter is operated. |
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