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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 Valve Seat Cover N54/B30 >> 11 12 Cylinder Head with Valve Seat Cover N54 B30

11 12 Cylinder Head with Valve Seat Cover N54 B30

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

Valve seat angle ° 45
Correction angle: outer ° 15
Correction angle: inner ° 60
Valve seat width: Inlet mm 1.0 +0.1
Valve seat width: Exhaust mm 1.2 +0.1
Valve seat    
Valve seat surface: Outside dia. inlet mm 27.7+0.1
Valve seat surface: Outside dia. exhaust mm 26.6+0.1