11 12 719 Surface grinding cylinder head sealing surface (N63)

WARNING: This page is about a different variant/trim than selected.

Necessary preliminary work:

Cylinder head disassembled:

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

NOTE: Maximum deviation from flatness: longitudinal 0.10 mm (see TECHNICAL DATA ).

Fig 1: Checking Evenness Of Cylinder Head Lower Face (Longitudinal)

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Maximum deviation from flatness: transversal 0.05 mm.

Machining limit: see TECHNICAL DATA .

Fig 2: Checking Evenness Of Cylinder Head Lower Face (Transversal)
Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: A cylinder head gasket (+REP) 0.3 mm thicker than usual can be obtained for machined (resurfaced) cylinder heads.

Fig 3: Identifying Repair Gasket (+REP)

Courtesy of BMW OF NORTH AMERICA, INC.