Kohler command pro PCH740 - Page 12

Specifi cations
12 24 690 32 Rev. AKohlerEngines.com
CLEARANCE
SPECIFICATIONS
3
PCH680, PCH740
Piston, Piston Rings, and Piston Pin (continued)
Thrust Face O.D.
7
82.978 mm (3.2668 in.)
Max. Wear Limit 82.833 mm (3.2611 in.)
Piston Thrust Face-to Cylinder
Bore
7
Running Clearance
New 0.019/0.062 mm (0.0007/0.0024 in.)
Valves and Valve Lifters
Hydraulic Lifter to Crankcase
Running Clearance
0.011/0.048 mm (0.0004/0.0019 in.)
Intake Valve Stem-to-Valve
Guide Running Clearance
0.040/0.078 mm (0.0016/0.0031 in.)
Exhaust Valve Stem-to-Valve
Guide Running Clearance
0.052/0.090 mm (0.0020/0.0035 in.)
Intake Valve Guide I.D.
New
Max. Wear Limit
7.040/7.060 mm (0.2772/0.2780 in.)
7.134 mm (0.2809 in.)
Exhaust Valve Guide I.D.
New
Max. Wear Limit
7.040/7.060 mm (0.2772/0.2780 in.)
7.159 mm (0.2819 in.)
Valve Guide Reamer Size
Standard
0.25 mm O.S.
7.050 mm (0.2776 in.)
7.300 mm (0.2874 in.)
Intake Valve Minimum Lift 8.07 mm (0.3177 in.)
Exhaust Valve Minimum Lift 8.07 mm (0.3177 in.)
Nominal Valve Seat Angle 45°
3
Values are in Metric units. Values in parentheses are English equivalents.
7
Measure 6 mm (0.236 in.) above bottom of piston skirt at right angles to piston pin.