Cylinder Head And Valves Inspection And Service - Kohler Courage SV470 Service Manual

Section 9
Inspection and Reconditioning
Cylinder Head and Valves
Inspection and Service
Carefully inspect the valve mechanism parts. Inspect the valve springs and related hardware for excessive wear
Exhaust Valve E
D
F
B
A Seat Angle
B Guide Depth
C Guide I.D.
D
E Valve Face Angle
F Valve Margin (Min.)
G Valve Stem Diameter
Figure 9-10. Valve Details.
9.6
A
G
C
Dimension
A
C
Intake
89°
10.20 mm
6.038/6.058 mm
37.625/37.375 mm
45°
1.5 mm
5.982/6.000 mm
Intake Valve
E
D
F
G
B
Exhaust
89°
6.2 mm
6.038/6.058 mm
32.125/32.375 mm
45°
1.5 mm
5.970/5.988 mm