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Home >> BMW >> 2013 >> Z4 28i, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine - Technical Data (N54)) >> Cylinder Head with Cover N54/B30 >> 11 12 Cylinder Head with Cover N54 B30

11 12 Cylinder Head with Cover N54 B30

WARNING: This page is about a different variant/trim than selected.
CYLINDER HEAD WITH COVER SPECIFICATIONS

Cylinder head height: Original dimension mm 112.00 ± 0.05
Machining limit mm 111.70 ± 0.05
Valve guides are not available as replacement parts.    
Inside diameter of installed valve guide    
Original inlet valve mm 5.0+0.012
Original exhaust valve mm 6.0+0.012
Tilt clearance, maximum (wear between valve and valve guide) mm cannot be measured
Bearing of camshaft    
Guide bearing (width) mm 22.000...22.052