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Home >> BMW >> 2011 >> X6 ActiveHybrid >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine - Repair (N63) >> Cylinder Head And Cylinder Head Cover >> 11 12 719 Grinding cylinder head sealing surface (N63) >> Cylinder head disassembled

Cylinder head disassembled

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

NOTE: Maximum plane deviation: longitudinal 0.10 mm.
Fig 1: Checking Evenness Of Cylinder Head Sealing Face With Standard Straight-Edge
G04739700Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Maximum plane deviation: transversal 0.05 mm.
Fig 2: Checking Evenness Of Cylinder Head Sealing Face With Standard Straight-Edge
G04739701Courtesy 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 Cylinder Head Gasket (+REP)
G04739702Courtesy of BMW OF NORTH AMERICA, INC.