Specifi cations
1762 690 13 Rev. A KohlerEngines.com
TORQUE SPECIFICATIONS
2,5
ECH940 ECH980
Oil Pump
Mounting Screw 9.9 N·m (88 in. lb.)
Reservoir (oil) (torque sequence on page 14)
Mounting Screw 25.6 N·m (227 in. lb.)
Starter Assembly
Mounting Screw 16.0 N·m (142 in. lb.)
Stator
Mounting Screw 9.3 N·m (82 in. lb.)
Valve Cover
Valve Cover Fastener 13.6 N·m (120 in. lb.)
CLEARANCE SPECIFICATIONS
2
ECH940 ECH980
Camshaft
End Play 0.3/1.3 mm (0.011/0.051 in.)
Running Clearance 0.025/0.063 mm (0.0010/0.0025 in.)
Bore I.D.
New
Max. Wear Limit
20.000/20.025 mm (0.7874/0.7884 in.)
20.038 mm (0.7889 in.)
Bearing Surface O.D.
New
Max. Wear Limit
19.962/19.975 mm (0.7859/0.7864 in.)
19.959 mm (0.7858 in.)
Cam Lobe Profi le (minimum dimension, measured from base circle
to top of lobe)
Exhaust 35 mm (1.3779 in.)
Intake 35 mm (1.3779 in.)
Connecting Rod
Crankpin End I.D. @ 70°F
New
Max. Wear Limit
44.030/44.037 mm (1.7334/1.7337 in.)
0.070 mm (0.0028 in.)
Connecting Rod-to-Crankpin Running Clearance
New
Max. Wear Limit
0.030/0.055 mm (0.0012/0.0022 in.)
0.070 mm (0.0028 in.)
Connecting Rod-to-Crankpin Side Clearance 0.30/0.59 mm (0.0118/0.0232 in.)
Connecting Rod-to-Piston Pin Running Clearance 0.015/0.028 mm (0.0006/0.0011 in.)
Piston Pin End I.D. @ 70°F
New
Max. Wear Limit
19.023/19.015 mm (0.7489/0.7486 in.)
19.036 mm (0.7494 in.)
Crankcase
Governor Cross Shaft Bore I.D.
New
Max. Wear Limit
8.025/8.050 mm (0.3159/0.3169 in.)
8.088 mm (0.3184 in.)
2
Values are in Metric units. Values in parentheses are English equivalents.
5
Lubricate threads with engine oil prior to assembly.
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