Kohler Command PRO ECV740 User Manual

1.10
Section 1
Safety and General Information
Cranksha - Flywheel End Main Bearing Journal
O.D. - New ...........................................................................................................40.913/40.935 mm (1.6107/1.6116 in.)
O.D. - Max. Wear Limit ......................................................................................40.843 mm (1.608 in.)
Max. Taper Limit .................................................................................................0.022 mm (0.0009 in.)
Max. Out-of-Round Limit ..................................................................................0.025 mm (0.0010 in.)
Cranksha - Oil Pan End Main Bearing Journal
O.D. - New ...........................................................................................................40.913/40.935 mm (1.6107/1.6116 in.)
O.D. - Max. Wear Limit ......................................................................................40.843 mm (1.608 in.)
Max. Taper ...........................................................................................................0.022 mm (0.0009 in.)
Max. Out-of-Round ............................................................................................0.025 mm (0.0010 in.)
Cranksha - Connecting Rod Journal
O.D. - New ...........................................................................................................35.950/35.973 mm (1.4153/1.4163 in.)
O.D. - Max. Wear Limit ......................................................................................35.941 mm (1.4150 in.)
Max. Taper Limit .................................................................................................0.018 mm (0.0007 in.)
Max. Out-of-Round Limit ..................................................................................0.025 mm (0.0010 in.)
Cranksha T.I.R.
PTO End, Crank in Engine ................................................................................0.279 mm (0.0110 in.)
Entire Crank, in V-Blocks ...................................................................................0.10 mm (0.0039 in.)
Cylinder Bore
Cylinder Bore I.D.
New - ECV630,ECV650,ECV680 .......................................................................80.000/80.025 mm (3.1496/3.1506 in.)
New - ECV730,ECV740,ECV749 .......................................................................83.006/83.031 mm (3.2680/3.2689 in.)
Max. Wear Limit - ECV630,ECV650,ECV680 ..................................................80.075 mm (3.1526 in.)
Max. Wear Limit - ECV730,ECV740,ECV749 ..................................................83.081 mm (3.2709 in.)
Max. Out-of-Round ............................................................................................0.120 mm (0.0047 in.)
Max. Taper ...........................................................................................................0.05 mm (0.0020 in.)
Cylinder Head
Cylinder Head Fastener Torque
Hex Flange Nut - Torque in Two Stages ..........................................................fi rst to 16.9 N·m (150 in. lb.)
fi nally to 33.9 N·m (300 in. lb.)
Head Bolt - Torque in Two Stages ....................................................................fi rst to 22.6 N·m (200 in. lb.)
fi nally to 41.8 N·m (370 in. lb.)
Cylinder Head Max. Out-of-Flatness ......................................................................0.076 mm (0.003 in.)
Rocker Arm Screw Torque ........................................................................................11.9 N·m (105 in. lb.)
Fan/Flywheel
Fan Fastener Torque...................................................................................................9.9 N·m (88 in. lb.)
Flywheel Retaining Screw Torque ...........................................................................71.6 N·m (52.8  . lb.)
Fuel Pump
Fuel Pump Module Baffl e Fastener Torque ............................................................11.9 N·m (105 in. lb.)
Fuel Pump Module Fastener Torque .......................................................................9.2 N·m (81 in. lb.)
Pulse Pump Bracket Fastener Torque .....................................................................2.1 N·m (25 in. lb.)
Pulse Pump Fastener to Bracket Torque .................................................................7.3 N·m (68 in. lb.) into new holes
6.2 N·m (55 in. lb.) into used holes

Kohler Command PRO ECV740 Specifications

General

Crankshaft Orientation	Vertical
Compression Ratio	8.5:1
Crankshaft Diameter	1.125 inches
Crankshaft Keyway	0.312 inches
Engine Type	4-Cycle OHV
Bore	3.27 inches
Stroke	69 mm (2.72 in.)
Oil Capacity	2 quarts