Cooper (R56) L4-1.6L (N12) (2008)
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Variable Valve Timing Actuator: Service and Repair
11 36 046 Removing and Installing/Replacing Inlet and Exhaust Adjustment Units
11 36 046 Removing and installing/replacing inlet and exhaust adjustment units (N12)
Special tools required:
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00 9 120
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11 9 340
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11 9 540
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11 9 590
Important:
Always release both central bolts to adjust the timing.
The timing is not determined at firing TDC of cylinder no. 1.
Modified procedure for timing adjustment.
All pistons are in the 90 ° position.
Check locking of adjustment units.
Necessary preliminary tasks:
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Remove cylinder head cover.
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Check timing.
Rotate crankshaft at central bolt.
Slide in special tool 11 9 590 in direction of arrow and block crankshaft.
Release screws (1).
Remove slide rail (2).
Important:
Risk of damage!
To open central bolt, mount special tool 11 9 540 on camshaft.
If the setting gauges cannot be positioned, grip the camshaft with an open-end wrench to release the central bolt.
Refer to Adjusting timing.
