11 12 719 Resurfacing cylinder head sealing face (N14)

Necessary preliminary tasks:

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

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

Illustration shows N52.

Fig 1: Standard Straight-Edge Longitudinally On Cylinder Head Sealing Faces

Courtesy of BMW OF NORTH AMERICA, INC.

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

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

Illustration shows N52.

Fig 2: Standard Straight-Edge Transversely On Cylinder Head Sealing Faces

Courtesy of BMW OF NORTH AMERICA, INC.

Check cylinder head for Water Leaks .