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Home >> BMW >> 2016 >> Z4 sDrive35is >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (Engine - Technical Data (N20) -- Z4-E89) >> Cylinder Head With Valve Seat Cover, N20, N26 >> 11 12 Cylinder Head with Valve Seat Cover N20/N26

11 12 Cylinder Head with Valve Seat Cover N20/N26

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

Valve seat angle ° 45
Correction angle: outer ° 35
Correction angle: Inner, exhaust valve ° 60
Correction angle: Inner, intake valve ° 65
Valve seat width: Intake mm 1.25 +0.2
Valve seat width: Exhaust mm 1.65 +0.2
Ø theoretical valve seat    
Valve seat surface: Outer diameter, intake mm 30.4 +0.1
Valve seat surface: Outer diameter, exhaust mm 26.6 +0.1