| Basic setting of hydraulic valve clearance compensation |
| The hydraulic valve clearance compensation is maintenance-free; the setting must not be changed. |
| After completing repair work on the cylinder head/valve gear, however, it is necessary to carry out the basic setting of the hydraulic valve clearance compensation as follows. |
Note | The basic setting of the hydraulic valve clearance compensation must not be carried out again, if only the cylinder head gasket is replaced. |
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| Rotate crankshaft until the valves of cylinder 4 overlap (inlet valve opens and exhaust valve closes). |
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| At cylinder 1, slacken the lock nuts for the adjusting bolts of the rocker arms. |
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| Then, turn back the adjusting bolts in the rocker arms until play can be felt between rocker arm and valve. |
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| Turn adjusting bolts of both rocker arms slightly against the valves until valve gear has no play again. Check the gradual reduction of the play through swinging movements of the adjusting rocker arm. The point with no play which has appeared determines the exact contact location. |
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| From this point, turn adjusting bolts in a further two turns. Screw in lock nut and then tighten fully to 13 Nm. |
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| Carry out the setting operations on the other cylinders according to the table below: |
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