Kohler Command PRO CS, Service Manual

Page: 118 / 162

10.6
Section 10
Internal Components
D
D
Dimension
Head Diameter (CS4)
Head Diameter (CS6)
Stem Diameter
Length (CS4)
Length (CS6)
Face/Seat Width
Face/Seat Limit
Face/Seat Angle (Insert Area)
Valve Stem Bend Limit
Valve Guide
Guide Inside Diameter
Stem to Guide Clearance
Valve Clearance
Valve Seat Contact Width
Std.
Limit
A
B
C
D
E
Exhaust
19.0 mm (0.75 in.)
22.0 mm (0.87 in.)
5.5 mm (0.22 in.)
64.5 mm (2.54 in.)
64.5 mm (2.54 in.)
0.7 mm (0.0276 in.)
1.7 mm (0.067 in.)
90°
0.01 mm (0.0004 in.)
5.5 mm (0.22 in.)
0.06/0.08 mm (0.002/0.003 in.)
0.1 mm (0.004 in.)
0.7 mm (0.03 in.)
1.7 mm (0.067 in.)
Intake
21.0 mm (0.83 in.)
24.0 mm (0.94 in.)
5.5 mm (0.22 in.)
64.5 mm (2.54 in.)
65.9 mm (2.59 in.)
0.7 mm (0.0276 in.)
1.7 mm (0.067 in.)
90°
0.01 mm (0.0004 in.)
5.5 mm (0.22 in.)
0.04/0.06 mm (0.0016/0.002 in.)
0.1 mm (0.004 in.)
0.7 mm (0.03 in.)
1.7 mm (0.067 in.)
D
B
C
A
E
Figure 10-10. Valve and Valve Seat Measuring Locations.
CS4, CS6 Valve Specifications
Cylinder Head and Valves
Inspection and Service
Carefully inspect the valve mechanism parts. Inspect the valve springs and related hardware for excessive wear
or distortion. Check the valves and valve seat area for evidence of deep pitting, cracks, or distortion. Check
clearance of the valve stems in guides. See Figure 10-10 for valve details and specifications.