11 12 719 Resurfacing cylinder head sealing face (N51)

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Necessary preliminary tasks:

Remove Cylinder Head
Remove Exhaust Camshaft.
Remove Intermediate Lever on intake side

Check evenness of cylinder head sealing faces with a standard straight-edge (1).

NOTE: Max. deviation from level (longitudinal) 0.10 mm

Fig 1: Checking Evenness Of Longitudinal Cylinder Head Sealing Faces With Standard Straight-Edge

Courtesy of BMW OF NORTH AMERICA, INC.

Check evenness of cylinder head sealing faces with a standard straight-edge (1).

NOTE: Max. deviation from level (transversal) 0.05 mm

Fig 2: Checking Evenness Of Transversal Cylinder Head Sealing Faces With Standard Straight-Edge

Courtesy of BMW OF NORTH AMERICA, INC.

Check cylinder head for Water Leaks

Assemble engine.