Kohler CH18 User Manual

Specifi cations
924 690 06 Rev. P KohlerEngines.com
TORQUE SPECIFICATIONS
4,6
CH18/CH20/
CH22/
CH620/CH621/
CH640/CH641
CH22/CH23/
CH620
8
/
CH640
8
/
CH670/CH680
CH25/
CH730/
CH740 CH750
Solenoid (Starter)
Mounting Hardware
Nippondenso Starter
Delco-Remy Starter
6.0-9.0 N·m (53-79 in. lb.)
4.0-6.0 N·m (35-53 in. lb.)
Nut, Positive (+) Brush Lead
Nippondenso Starter
Delco-Remy Starter
8.0-12.0 N·m (71-106 in. lb.)
8.0-11.0 N·m (71-97 in. lb.)
Speed Control Bracket
Fastener 10.7 N·m (95 in. lb.) into new holes
7.3 N·m (65 in. lb.) into used holes
Starter Assembly
Thru Bolt
Inertia Drive
Nippondenso Solenoid Shift
Delco-Remy Solenoid Shift
4.5-5.7 N·m (40-50 in. lb.)
4.5-7.5 N·m (40-84 in. lb.)
5.6-9.0 N·m (49-79 in. lb.)
Mounting Screw 15.3 N·m (135 in. lb.)
Brush Holder Mounting Screw 2.5-3.3 N·m (22-29 in. lb.)
Stator
Mounting Screw 6.2 N·m (55 in. lb.)
Valve Cover
Gasket Style Cover Fastener 3.4 N·m (30 in. lb.)
Black O-Ring Style Cover Fastener
w/Shoulder Screws
w/Flange Screws and Spacers
5.6 N·m (50 in. lb.)
9.9 N·m (88 in. lb.)
Yellow or Brown O-Ring Style Cover Fastener
w/Integral Metal Spacers 9.0 N·m (80 in. lb.)
CLEARANCE SPECIFICATIONS
4
CH18/CH20/
CH22/
CH620/CH621/
CH640/CH641
CH22/CH23/
CH620
8
/
CH640
8
/
CH670/CH680
CH25/
CH730/
CH740 CH750
Camshaft
End Play (w/shim) 0.076/0.127 mm (0.0030/0.0050 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.)
4
Values are in Metric units. Values in parentheses are English equivalents.
6
Lubricate threads with engine oil prior to assembly.
8
CH620/CH640 engines changed from 624cc to 674cc; displacement can be confi rmed on engine nameplate.

Kohler CH18 Specifications

General

Brand	Kohler
Model	CH18
Category	Engine
Language	English