Kohler COM7.5 Service Manual page 12

Engine Specification
Manufacturer
Make/model
Cycle
Compression ratio
Displacement, cc (cu. in.)
Rated horsepower (using natural gas fuel)
Engine speed, rpm
Bore, mm (in.)
Stroke, mm (in.)
Valve train
Valve material:
Intake
Exhaust
Number of cylinders
Cylinder block material
Cylinder head material
Cylinder head tightening torque, Nm (ft. lb.)
Piston rings: quantity, type
Crankshaft material
Bearings: quantity, type
Governor
Starter motor
Lubrication system
Oil capacity (with filter and cooler), L (qt.)
Oil type
Oil filter tightening torque, Nm (in. lb.)
Oil pressure, kPa (psi)
Low oil pressure, kPa (psi)
Fuel type
Fuel pressure, kPa (in. water column)
Fuel consumption at 7.5 kW:
Natural gas, 1000 Btu/ft.
3
Propane, 2516 Btu/ft.
Battery voltage
Battery ground
Battery recommendation (minimum)
Spark plug type (Kohler Part No.)
Spark plug gap, mm (in.)
Spark plug tightening torque, Nm (ft. lb.)
Ignition system
Cooling system
High engine temperature, _C (_F)
Figure 1-3 Engine Specifications
2 Section 1 Specifications
Aluminum w/Cast Iron Liners
Heat Treated, Ductile Iron Casting
Natural Gas or Propane
3
425 CCA at --18_C (0°F)
24 132 03 (Champion RC12YC)
Specification
Kohler
CH20
4
8.5:1
398 (24.3)
13.1
2500--3650
77 (3)
67 (2.64)
Overhead Valve
Steel
Stelliter Face
2
Aluminum
41 (30)
2 Compression, 1 Oil
2, Replaceable Sleeve
Electronic
Electric, Solenoid Shift
Full Pressure
1.9 (2.0)
Synthetic 5W-30
5.7--9.0 (50--80)
172--241 (25--35)
24.1 ± 13.8 (3.5 ± 1.5)
1.7 to 2.7 (7 to 11)
150 cfh
50 cfh
12 VDC
Negative
0.75 (0.030)
24.4--29.8 (18--22)
Capacitive Discharge
Air Cooled
152 (305)
TP-6120 5/02