________________________________________________________________________________
Kohler Command CV18S
General Technical Data
Kohler CV18S Engine Specifications
Engine Model ........... Kohler Command CV18S
Engine Type ........... 4-cycle 2-cylinder gasoline, OHV, air-cooled
Number of Cylinders ........... V-Twin
Displacement, cc (cu.in) ........... 624 (38.0)
Engine Bore, mm (in) ........... 77.0 (3.03)
Engine Stroke, mm (in) ........... 67.0 (2.64)
Rated Engine Power, hp (kW) ........... 18.0 (13.3)
Rated Engine Speed, rpm ........... 3600
Maximum Torque, Nm (ft-lbs) ........... 34.3 (25.3)
Torque Speed, rpm ........... 2400
Compression ........... 8.5:1
Lubrication ........... Full pressure
Oil filter ........... Full-flow type
Air Cleaner ........... Replaceable, paper element
Oil Capacity, L (qts) ........... 1.9 (2.0)
Electrical System Rating, Volts ........... 12
Starter Type ........... Electric
Battery Rating ........... 12V, 400 CCA
Fuel System
Fuel System Type ........... Carburetor
Carburetor Model ........... Nikki or Keihin
Carburetor Type ........... Fixed main jet
Fuel Pump ........... Pulse type
Fuel Filter ........... In-line
Governor ........... Mechanical, centrifugal type
Dimensions
Length, mm (in) ........... 512 (20.2)
Width, mm (in) ........... 448 (17.7)
Height, mm (in) ........... 340 (13.4)
Net weight, kg (lbs) ........... 40.0 (88.2)
Kohler CV18S Maintenance Data
Cylinder Block and Valves
Cylinder Bore I.D. (Maximum), mm (in) ........... 77.063 (3.0340)
Cylinder Head (Max. Out-of-Flatness), mm (in) ........... 0.076 (0.003)
Intake Valve Clearance (Cold), mm (in) ........... 0.038-0.076
(0.0015-0.0030)
Exhaust Valve Clearance (Cold), mm (in) ........... 0.050-0.088
(0.0020-0.0035)
Engine Oil
Engine Oil Type (Summer) ........... SAE 10W-30
Engine Oil Type (Winter) ........... SAE 5W-20, 5W-30
Oil Classification ........... SG, SH, SJ or higher
Oil Capacity (w/o Filter), L (qts) ........... 1.7 (1.8)
Oil Capacity (with New Filter), L (qts) ........... 1.9 (2.0)
Carburetor Adjustments
Main Fuel ........... 2-1/2 turns
Idle Fuel ........... 3/4 to 1 full turn
Low Idle Speed, rpm ........... 1200±75
High Idle Speed, rpm ........... 3600±50
Ignition System
Spark Plug Type ........... Champion RC12YC
Spark Plug Gap, mm (in) ........... 0.76 (0.030)
Module Air Gap, mm (in) ........... 0.28-0.33 (0.011-0.013)
Thread Size, mm (in) ........... 14 (0.55)
Reach, mm (in) ........... 19.1 (0.75)
Spark Plug Torque, Nm (ft-lbs) ........... 24.4-29.8 (18-22)
Service Intervals
Service Precleaner Element ........... Every 25 hours
Replace Air Cleaner Element ........... Every 100 hours
Change Engine Oil ........... Every 100 hours
Clean Oil Cooler Fins ........... Every 100 hours
Check Carburetor Adjustment ........... Every 100 hours
Check Spark Plug Condition and Gap ........... Every 200 hours
Change Oil Filter ........... Every 200 hours
Replace Spark Plug ........... Every 300 hours
Check and Adjust Valve Clearance ........... Every 300 hours
Kohler CV18S Service Specifications
Cylinder Block
Cylinder Bore I.D (Std) ........... 77.000-77.025 mm (3.0315-3.0325 in.)
Cylinder Bore I.D (Max. Wear Limit) ........... 77.063 mm (3.0340 in.)
Cylinder Bore (Max. Out-of-Round) ........... 0.12 mm (0.0047 in.)
Cylinder Bore Max. Taper ........... 0.05 mm (0.0020 in.)
Cylinder Head Max. Out-of-Flatness ........... 0.076 mm (0.003 in.)
Camshaft End Play (With Shim) ........... 0.076-0.127 mm (0.0030-0.0050
in.)
Camshaft Clearance ........... 0.025-0.063 mm (0.0010-0.0025 in.)
Camshaft Bore I.D ........... 20.000-20.025 mm (0.7874-0.7884 in.)
Camshaft Bearing Surface O.D ........... 19.962-19.975 mm (0.7859-0.7864
in.)
Connecting Rod to Crankpin Clearance ........... 0.030-0.055 mm
(0.0012-0.0022 in.)
Connecting Rod to Crankpin Side Clearance ........... 0.26-0.63 mm
(0.0102-0.0248 in.)
Connecting Rod to Piston Pin Clearance ........... 0.015-0.028 mm
(0.0006-0.0011 in.)
Valves
Hydraulic Valve Lifter to Crankcase Clearance ........... 0.0241-0.0501
mm (0.0009-0.0020 in.)
Intake Valve Stem to Valve Guide Clearance ........... 0.038-0.076 mm
(0.0015-0.0030 in.)
Exhaust Valve Stem to Valve Guide Clearance ........... 0.050-0.088 mm
(0.0020-0.0035 in.)
Intake Valve Guide I.D ........... 7.038-7.058 mm (0.2771-0.2779 in.)
Exhaust Valve Guide I.D ........... 7.038-7.058 mm (0.2771-0.2779 in.)
Valve Guide Reamer Size (Standard) ........... 7.048 mm (0.2775 in.)
Valve Guide Reamer Size (0.25 mm Oversize) ........... 7.298 mm (0.2873
in.)
Intake Valve Minimum Lift ........... 8.07 mm (0.3177 in.)
Exhaust Valve Minimum Lift ........... 8.07 mm (0.3177 in.)
Crankshaft
Crankshaft End Play (Free) ........... 0.070-0.590 mm (0.0028-0.0230
in.)
Crankshaft Bore (In Crankcase) ........... 40.965-41.003 mm
(1.6128-1.6143 in.)
Crankshaft to Sleeve Bearing Clearance ........... 0.03-0.09 mm
(0.0012-0.0035 in.)
Crankshaft Bore ........... 40.987-40.974 mm (1.6136-1.6131 in.)
Crankshaft Bore to Crankshaft Clearance ........... 0.039-0.074 mm
(0.0015-0.0029 in.)
Flywheel End Main Bearing Journal O.D ........... 40.913-40.935 mm
(1.6107-1.6116 in.)
Flywheel End Main Bearing Journal Max. Taper ........... 0.022 mm
(0.0009 in.)
Oil Pan End Main Bearing Journal O.D ........... 40.913-40.935 mm
(1.6107-1.6116 in.)
Oil Pan End Main Bearing Journal Max. Taper ........... 0.022 mm (0.0009
in.)
Connecting Rod Journal O.D ........... 35.955-35.973 mm (1.4156-1.4163
in.)
Connecting Rod Journal Max. Taper ........... 0.018 mm (0.0007 in.)
Crankshaft T.I.R (PTO End, Crank in Engine) ........... 0.279 mm (0.0110
in.)
Crankshaft T.I.R (Entire Crank, in V-Blocks) ........... 0.10 mm (0.0039
in.)
Piston and Piston Rings
Piston-to-Piston Pin Clearance ........... 0.006-0.017 mm (0.0002-0.0007
in.)
Piston Pin End I.D ........... 17.015-17.023 mm (0.6699-0.6702 in.)
Piston Pin Bore I.D ........... 17.006-17.012 mm (0.6695-0.6698 in.)
Piston Pin O.D ........... 16.995-17.000 mm (0.6691-0.6693 in.)
Top Compression Ring to Groove Side Clearance ........... 0.040-0.080 mm
(0.0016-0.0031 in.)
Middle Compression Ring to Groove Side Clearance ........... 0.040-0.080
mm (0.0016-0.0031 in.)
Oil Control Ring to Groove Side Clearance ........... 0.060-0.202 mm
(0.0024-0.0080 in.)
Top and Middle Compression Ring End Gap ........... 0.25-0.45 mm
(0.0098-0.0177 in.)
Piston Thrust Face O.D ........... 76.967-76.985 mm (3.0302-3.0309 in.)
Piston Thrust Face to Cylinder Bore Clearance ........... 0.014-0.057 mm
(0.0005-0.0022 in.)
Kohler CV18S Tightening Torque Specs
Cylinder Head Flange Nut ........... 16.9-33.9 Nm (12.5-25 ft-lbs.)
Cylinder Head Bolt ........... 22.6-41.8 Nm (16.7-30.8 ft-lbs.)
Rocker Arm Screw ........... 11.3 Nm (8.3 ft-lbs.)
Connecting Rod Cap ........... 22.7 Nm (16.7 ft-lbs.)
Flywheel Retaining Screw ........... 66.4 Nm (49 ft-lbs.)
Intake Manifold Mounting ........... 7.4 Nm (5.5 ft-lbs.)
Carburetor Mounting Nut ........... 6.2-7.3 Nm (4.6-5.4 ft-lbs.)
Oil Drain Plug ........... 13.6 Nm (10 ft-lbs.)
Oil Pan ........... 24.4 Nm (18 ft-lbs.)
Governor Lever Nut ........... 6.8 Nm (5 ft-lbs.)
Ignition Module ........... 4.0-6.2 Nm (2.9-4.6 ft-lbs.)
Oil Filter ........... 10.4-12.7 Nm (7.5-9.2 ft-lbs.)
________________________________________________________________________________
________________________________________________________________________________________
KOHLER ENGINES SPECS AND SERVICE DATA |
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
KAWASAKI ENGINES SPECS AND SERVICE DATA |
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
BRIGGS AND STRATTON ENGINES SPECIFICATIONS |
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
HONDA ENGINES SPECS AND SERVICE DATA |
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________