11 12 719 Resurfacing cylinder head lower face (N18)

Necessary preliminary tasks: 

• Remove CYLINDER HEAD .
• Remove EXHAUST CAMSHAFT .
• Remove INTAKE CAMSHAFT .

Check evenness of cylinder head lower face with a standard straightedge (1).

Illustration shows N43.

Fig 1: Checking Cylinder Head Lower Face Evenness With Standard Straightedge

Courtesy of BMW OF NORTH AMERICA, INC.

Check evenness of cylinder head lower face with a standard straightedge (1).

Illustration shows N43.

Fig 2: Checking Cylinder Head Lower Face Evenness With Standard Straightedge

Courtesy of BMW OF NORTH AMERICA, INC.

Check cylinder head for WATERTIGHTNESS .