Timing Component Alignment Marks: Locations
Timing Component Alignment MarksNOTE: BMW does not provide precise timing marks for the engine.
Correct engine timing is achieved when certain conditions are met.
Refer to Timing Cover : Service and Repair.
Service and Repair
CAUTION! Incorrect setting/installation without the use of special tools could damage or break the camshafts. Valves could also be bent through contact with the piston crowns. Always note installation instructions and use specified special tools, procedures, and sequences.
- Turn crankshaft until piston in cyl. no. 1 is at TDC.
Valves of cylinders 1 and 7 are closed.
Dowel pins in the camshafts face in.
- Adjust engine to TDC position with Special Tool 11 2 300.
- Hold both camshafts with Special Tool 11 3 190.
If all of the above conditions are met and Tool 11 3 190 sits flush with cylinder head, the camshaft timing is correct. If necessary, adjust camshafts as described in "Remove and Install Upper Timing Case".
Service and Repair