Lotus Elise Service Notes page 192

ENGINE
K16 - VVC engines fitted with triple angle valve
seats • See illustration M12 5536
K16 - Non WC engines fitted with triple angle
valve seats - See illustration M12 5536
Inlet
A:= 15°
B:= 45°
C:= 60°
0:= 0.4 mm radius
E:= 32.560 to 32.573 mm
F:= 1.0 to 1.4 mm
G:= 30.2 mm
H:= 32.475 to 32.500 mm
J:= 5.95 to 6.00 mm
K:= 6.1 mm
M125536
Exhaust
A:= 15°
B:= 45°
C:= 60°
D:= 0.4 mm radius
E:= 28.993 to 29.006 mm
F:= 1.4 to 1.8 mm
G:= 26.23 mm
H:= 28.888 to 28.913 mm
J:= 5.45 to 5.50 mm
K:= 6.54 mm
All engines
Inlet 1. Cut valve seat to correct angle and width.
A-.a 15° 2. Lap valve to seat.
B:« 45°
C:- 60°
D:= 0.4 mm radius
E:« 29.560 to 29.573 mm
F:» 1.0 to 1.4 mm
G:= 26.43 mm
H:» 29.475 to 29.500 mm
J:» 5.95 to 6.00 mm
K:« 6.16 to 6.32 mm
Exhaust
A:*s 15°
B:= 45°
C:» 60°
D:= 0.4 mm radius
E:» 25.960 to 25.973 mm
F:« 1.4 to 1.8 mm
G:» 22.83 mm
H:> 25.913 to 25.888 mm
J:s 5.45 to 5.80 mm
K:= 5.7 to 5.86 mm
OVERHAUL 5 5