User Manuals: Kohler KT21 Engine Parts

Manuals and User Guides for Kohler KT21 Engine Parts. We have 3 Kohler KT21 Engine Parts manuals available for free PDF download: Service Manual

Kohler KT21 Service Manual (75 pages)

Series II twin cylinder engines

Brand: Kohler | Category: Engine | Size: 5 MB

Contents
2
General Information
4
Engine Identification Numbers
4
General Safety Warnings
5
Oil Recommendations
5
Oil Type
5
Oil Change
5
Fuel Recommendations
6
Service Schedule
6
Fuel Type
6
Air Cleaner Service
7
Cooling System Service
7
General Specifications
7
Torque Settings - Special
8
Tolerances, Fitted Parts
8
Wear Tolerances
9
Torque Settings - General
10
Special Tools
10
Conversions
10
How to Make a "U" Tube Manometer
11
Seal Driver (P.T.O.) - Seal Driver (Flywheel)
11
Troubleshooting
12
External Engine Inspection
13
Basic Engine Tests
13
Cleaning Engine
13
Crankcase Vacuum
13
Crankcase Vacuum Test
14
Compression Test
14
Low Compression
14
Air Intake System
15
Air Cleaner Assembly
15
Tear Drop
15
Square
16
Fabricated Breather Hose
16
Round
17
Anti-Icing System
17
Precleaner
18
Typical Anti-Icing Air Cleaner Cover Positions
18
Installing Anti-Icing Air Inlet Duct
18
Fuel System & Governor
19
To Adjust Carburetor
19
Carburetor Reconditioning
20
Cleaning Carburetor
20
Disassembly of Carburetor
20
Assembly of Carburetor
20
Float Tab Details
21
Setting Float Level
21
Setting Float Drop
21
Checking Float Clearance
21
Governor System
22
Governor Operation
22
Governor Components
22
Governor Adjustments
22
Optional Throttle and Choke Control
23
Fuel Pump Operation
24
Fuel Pump Check
24
Automatic Choke Function
24
Automatic Choke Adjustment
24
Automatic Choke Service Guide
25
Automatic Choke Inspection
25
Engine Shutdown Control and Automatic Choke
25
Shutdown Control Function
26
Shutdown Control Test
26
Shutdown Control Inspection
26
Pressurized Spray Lubrication System
27
Full-Pressure Lubrication System
27
Oil Pump
27
Lubrication System Service
28
Oil Pressure Relief Valve
28
Oil Pressure Pickup Point
28
Oil Pump Assembly and Center Oil Pickup
28
Battery Ignition System
29
Spark Plugs
29
Ignition System Service
29
Ignition System Analyzers
29
Breaker Points
31
Condenser
31
Condenser Check
31
Metal Transfer on Points
31
Ignition Coil Function
32
Ignition Coil Check - Ohmmeter
32
Ignition Coil Check - Terminals
32
Battery Check
33
Battery Maintenance
33
High Tension Leads - Removal and Installation
33
Resistance Check of Coil Secondary
33
Ignition Timing
34
Method 1 - Static Timing
34
Method 2 - Timing Light
34
Checking Battery Charge
34
Alternator Charging Systems
35
Valve Overlap Method
35
Breaker Point Gap Method
35
3 Amp System Service
35
3 Amp System Wiring Diagram
36
15 Amp System Wiring Diagram
36
15 Amp System
37
Starting Motor
38
15 Amp System Service Guide
38
Starter Motor Operation
38
Starter Motor Service
39
Components of Permanent Magnet Starter
39
Brush Replacement and Commutator Service
40
Drive Assembly
40
Ring Gear
40
Brush Holder Tool
40
Disassembly
41
External Components
41
Flywheel
41
Using Strap Wrench
41
Cylinder Heads, Barrels, Valves and Pistons
42
Identify Engine Sides
42
Flywheel-Inspection
42
Flywheel Removal
42
Cylinder Heads - Inspection and Service
43
Cylinder Barrels - Inspection and Overhaul
43
Cylinder Barrel Identification
43
Cleaning Cylinder Heads
43
Honing
44
Valves - Inspection and Service
44
Cylinder Bore Cross-Hatch after Honing
44
Valve Guides
46
Valve Seat Inserts
46
Valve Details
46
Valve Stem Seals
47
Valve Springs
47
Pistons and Rings - Inspection
47
Lapping Valves
47
Pistons and Rings - Service
48
Common Sources of Piston and Ring Damage
48
Checking Ring End Gap in Bore
49
Checking Piston - Ring Side Clearance
49
Production Type and Service Type Piston Rings
49
Closure Plate and Crankcase
50
Camshaft, Tappets, Crankshaft and Connecting Rods
50
Camshaft Bore Plug
50
Governor Gear and Cross Shaft
51
Posi-Lock Connecting Rods
51
Camshaft and Crankshaft - Inspection and Service
51
Connecting Rods - Inspection and Service
51
Oil Pump - Inspection and Service
52
Center Oil Pickup
52
Governor Gear - Inspection
52
Assembly
53
Governor Gear and Cross Shaft Installation
53
Installing Center Oil Pickup
53
Installing Governor Cross Shaft - Generator Applications
53
Oil Pump Assembly
54
Securing Oil Pump Gear to Shaft
54
Crankshaft and Components Assembly
55
Note Differences in Connecting Rod Design
55
Roller Thrust Bearing Assembly
56
Position of the Bearing to the Crankcase
56
Tappets and Camshaft
57
Crankcase Sealing
58
Recommended Sealants
58
Applying Crankcase Sealant - Crankcase Exterior
58
Machined Camshaft Bore Plug with O-Ring
59
Installing #2 Crankcase Half
59
Applying Crankcase Sealant
59
Camshaft Bore Cup Plug
60
Crankcase Torque Sequence
60
Restaking Camshaft Bore Plug
60
Stator
61
Pistons, Cylinder Barrels and Closure Plate
61
Front Oil Seal
61
Valve Components and Cylinder Heads
62
Rear Oil Seal
62
Breather and Valve Cover
63
Exploded View of Breather Components
63
Checking Valve Clearance
63
Cylinder Head Screw Tightening Sequence
63
Installing Non-Metallic Pumps
64
Baffles and Shrouds
65
Grass Deflector
66
Optional Ignition Switch and Starter Solenoid
66
Rectifier-Regulator
67
Carburetor, Intake Manifold and Exhaust Manifold
67
Governor Arm, Governor Linkage, Breather Hose and Fuel Line
67
Fuel and Breather Hose Connections
68
Installing Governor Arm
68
Governor Arm Adjustment
68
Ignition Coil and Condenser Assembly
69
Subject Index
70

Kohler KT21 Service Manual (74 pages)

Twin Cylinder Engine

Brand: Kohler | Category: Engine | Size: 2 MB

Kohler KT21 Service Manual (74 pages)

twin cylinder

Brand: Kohler | Category: Engine | Size: 5 MB

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User Manuals: Kohler KT21 Engine Parts

Kohler KT21 Service Manual (75 pages)

Table of Contents

Kohler KT21 Service Manual (74 pages)

Table of Contents

Kohler KT21 Service Manual (74 pages)

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