1 Series E87 120i (N43) 5-door
11 12 Cylinder Head with Valve Seat Cover N43 B20
Valve seat angle, both valves
°
45
°
Correction angle: Outer, inlet valve
°
15
°
Correction angle: Inner, inlet valve
°
65
°
Correction angle: Outer, exhaust valve
°
15
°
Correction angle: Inner, exhaust valve
°
60
°
Valve seat width: Inlet
mm
0.9
+0.1
Valve seat width: Exhaust
mm
1.15
+0.2
∅
Valve seat
Valve seat surface: Outside dia. inlet
mm
30.0
+0.1
Valve seat surface: Outside dia. exhaust
mm
26.6
+0.1
TD Cylinder Head with Valve Seat Cover N43 / B20
BMW AG - TIS
23.01.2013 16:28
Issue status (12/2007) Valid only until next DVD is issued
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