Kohler SV810-840 Service Manual page 110

Section 9
Inspection and Reconditioning
EXHAUST
VALVE
G
H
Dimension
Seat Angle
A
B Insert O.D.
C Guide Depth
D Guide I.D.
E
F Valve Face Angle
G Valve Margin (Min.)
H Valve Stem Diameter
Figure 9-4. Valve Details.
fuel consumption may be symptoms of faulty valves.
removal, clean the valve heads, faces, and stems with
a power wire brush. Then, carefully inspect each valve
9.4
F
E C
D
D
Intake
89°
36.987/37.013 mm (1.4562/1.4572 in.)
4 mm (0.1575 in.)
7.038/7.058 mm (0.2771/0.2779 in.)
33.37/33.63 mm (1.3138/1.3240 in.)
45°
1.5 mm (0.0591 in.)
6.982/7.000 mm (0.2749/0.2756 in.)
INTAKE VALVE
F
A
B
E
EXHAUST
A
INSERT
INTAKE
INSERT
A
B
89°
32.987/33.013 mm (1.2987/1.2997 in.)
6.5 mm (0.2559 in.)
7.038/7.058 mm (0.2771/0.2779 in.)
29.37/29.63 mm (1.1563/1.1665 in.)
45°
1.5 mm (0.0591 in.)
6.970/6.988 mm (0.2744/0.2751 in.)
for defects such as warped head, excessive corrosion,
or worn stem end. Replace valves found to be in bad
condition. A normal valve and valves in bad condition
are shown in the accompanying illustrations.
G
H
Exhaust