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John Deere Yanmar 3TG66, 3TG72 Gasoline Engines Technical Service Repair Manual CTM12

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John Deere Yanmar 3TG66, 3TG72 Gasoline Engines Technical Service Repair Manual CTM12

MODELS COVERED:

Yanmar 3TG66, 3TG72 Gasoline Engines


MANUAL CONTENTS:


Group 05— . . . . . . . . . . . . . . . . . . . . . . . . . .

About This Manual . . . . . . . . . . . . . . . . . . . 05-2

Engine Serial Number Plate . . . . . . . . . . . . . 05-3

Engine Application Chart . . . . . . . . . . . . . . . 05-3

Engine Torque Specifications . . . . . . . . . . . . 05-4

Metric Torque Specifications . . . . . . . . . . . . 05-5

Group 06—Repair Specifications

Engine

3TG72 . . . . . . . . . . . . . . . . . . . . . . . . . 06-1

3TG66 . . . . . . . . . . . . . . . . . . . . . . . . . 06-6

Group 10—Valve Train and Camshaft

Service Equipment and Tools . . . . . . . . . . . . 10-1

Other Materials . . . . . . . . . . . . . . . . . . . . . 10-1

Service Part Kits . . . . . . . . . . . . . . . . . . . . 10-2

Rocker Arm

Remove and Disassemble Cover . . . . . . . . 10-2

Measure and Adjust Valve Clearance . . . . . 10-3

Remove and Disassemble Assembly . . . . . 10-4

Remove and Inspect Pushrods and

Cam Followers . . . . . . . . . . . . . . . . . . 10-7

Install Pushrods and Cam Followers . . . . . . 10-9

Assemble and Install Assembly . . . . . . . . 10-10

Assemble and Install Cover . . . . . . . . . . 10-11

Camshaft

Remove . . . . . . . . . . . . . . . . . . . . . . . 10-12

Disassemble and Inspect . . . . . . . . . . . . 10-14

Assemble . . . . . . . . . . . . . . . . . . . . . . 10-18

Install . . . . . . . . . . . . . . . . . . . . . . . . . 10-18

Group 15—Cylinder Head, Valves, and Manifolds

Essential Tools . . . . . . . . . . . . . . . . . . . . . 15-1

Service Equipment and Tools . . . . . . . . . . . . 15-1

Service Part Kits . . . . . . . . . . . . . . . . . . . . 15-1

Exhaust Manifold

Remove, Repair, and Install . . . . . . . . . . . 15-2

Intake Manifold

Remove, Repair, and Install . . . . . . . . . . . 15-3


Cylinder

Remove . . . . . . . . . . . . . . . . . . . . . . . . 15-4

Disassemble . . . . . . . . . . . . . . . . . . . . . 15-5

Assemble . . . . . . . . . . . . . . . . . . . . . . 15-10

Install . . . . . . . . . . . . . . . . . . . . . . . . . 15-13

Group 20—Flywheel

Service Equipment and Tools . . . . . . . . . . . . 20-1

Flywheel Housing and Flywheel

Remove . . . . . . . . . . . . . . . . . . . . . . . . 20-1

Inspect . . . . . . . . . . . . . . . . . . . . . . . . . 20-3

Install . . . . . . . . . . . . . . . . . . . . . . . . . . 20-3

Group 25—Connecting Rods and Pistons

Service Equipment and Tools . . . . . . . . . . . . 25-1

Other Materials . . . . . . . . . . . . . . . . . . . . . 25-1

Service Part Kits . . . . . . . . . . . . . . . . . . . . 25-1

Connecting Rod

Measure Side Play . . . . . . . . . . . . . . . . . 25-2

Measure Bearing Clearance . . . . . . . . . . . 25-2

Pistons and Connecting Rods

Remove . . . . . . . . . . . . . . . . . . . . . . . . 25-4

Inspect . . . . . . . . . . . . . . . . . . . . . . . . . 25-6

Deglaze Cylinder Bores . . . . . . . . . . . . . 25-13

Assemble . . . . . . . . . . . . . . . . . . . . . . 25-14

Install . . . . . . . . . . . . . . . . . . . . . . . . . 25-16

Group 30—Crankshaft and Main Bearings

Service Equipment and Tools . . . . . . . . . . . . 30-1

Service Part Kits . . . . . . . . . . . . . . . . . . . . 30-1

Other Materials . . . . . . . . . . . . . . . . . . . . . 30-1

Measure Crankshaft End Play . . . . . . . . . . . 30-2

Measure Crankshaft Bearing Clearance . . . . . 30-2

Crankshaft Oil Seal

Remove . . . . . . . . . . . . . . . . . . . . . . . . 30-5

Install . . . . . . . . . . . . . . . . . . . . . . . . . . 30-6

Crankshaft

Remove . . . . . . . . . . . . . . . . . . . . . . . . 30-7

Disassemble and Inspect . . . . . . . . . . . . . 30-9


Crankshaft—Continued

Assemble . . . . . . . . . . . . . . . . . . . . . . 30-12

Install . . . . . . . . . . . . . . . . . . . . . . . . . 30-12

Group 35—Gear Housing

Service Equipment and Tools . . . . . . . . . . . . 35-1

Other Materials . . . . . . . . . . . . . . . . . . . . . 35-1

Timing Gear Cover

Remove . . . . . . . . . . . . . . . . . . . . . . . . 35-2

Install . . . . . . . . . . . . . . . . . . . . . . . . . . 35-3

Timing Gears

Remove and Inspect . . . . . . . . . . . . . . . . 35-4

Install Timing Gears . . . . . . . . . . . . . . . . . . 35-5

Gear Housing

Remove . . . . . . . . . . . . . . . . . . . . . . . . 35-6

Install . . . . . . . . . . . . . . . . . . . . . . . . . . 35-7

Group 40—Lubrication System

Service Equipment and Tools . . . . . . . . . . . . 40-1

Other Materials . . . . . . . . . . . . . . . . . . . . . 40-1

Oil Pump

Remove and Inspect . . . . . . . . . . . . . . . . 40-2

Assemble and Install . . . . . . . . . . . . . . . . 40-3

Oil Pressure Regulating Valve

Remove and Install . . . . . . . . . . . . . . . . . 40-4

Adjust . . . . . . . . . . . . . . . . . . . . . . . . . . 40-5

Group 45—Cooling System

Essential Tools . . . . . . . . . . . . . . . . . . . . . 45-1

Service Equipment and Tools . . . . . . . . . . . . 45-1

Thermostat

Service . . . . . . . . . . . . . . . . . . . . . . . . . 45-2

Water Pump

Remove . . . . . . . . . . . . . . . . . . . . . . . . 45-3

Disassemble . . . . . . . . . . . . . . . . . . . . . 45-3

Assemble . . . . . . . . . . . . . . . . . . . . . . . 45-6

Install . . . . . . . . . . . . . . . . . . . . . . . . . . 45-8

Group 50—Carburetor

Carburetor

Remove and Install . . . . . . . . . . . . . . . . . 50-1

Clean . . . . . . . . . . . . . . . . . . . . . . . . . . 50-4

Assemble . . . . . . . . . . . . . . . . . . . . . . . 50-5

Group 55—Governor

Service Equipment and Tools . . . . . . . . . . . . 55-1

Governor

Remove and Inspect . . . . . . . . . . . . . . . . 55-1

Assemble and Install . . . . . . . . . . . . . . . . 55-5


Group 60—Starter

Service Equipment and Tools . . . . . . . . . . . . 60-1

Starter Specifications . . . . . . . . . . . . . . . . . 60-1

Starter Application Chart . . . . . . . . . . . . . . . 60-1

Bench Test Starter . . . . . . . . . . . . . . . . . . . 60-2

Starter Hitachi 0.8 kW

Disassemble and Service . . . . . . . . . . . . . 60-3

Assemble . . . . . . . . . . . . . . . . . . . . . . . 60-7

Nippon Denso 1.0 kW Starter

Disassemble and Service . . . . . . . . . . . . . 60-8

Assemble . . . . . . . . . . . . . . . . . . . . . . 60-15

Group 65—Alternator

Service Equipment and Tools . . . . . . . . . . . . 65-1

Alternator Specifications . . . . . . . . . . . . . . . 65-1

Service 20 A Kokosan Alternator . . . . . . . . . 65-1

Nippon Denso Alternator

Replace Voltage Regulator . . . . . . . . . . . . 65-4

Disassemble . . . . . . . . . . . . . . . . . . . . . 65-6

Test Rotor . . . . . . . . . . . . . . . . . . . . . . . 65-7

Test Stator and Rectifier . . . . . . . . . . . . . 65-9

Assemble . . . . . . . . . . . . . . . . . . . . . . 65-12

Group 70—Ignition System

Service Ignition Coils . . . . . . . . . . . . . . . . . 70-1

Service Ignition Pulsers


Pages:172

File Format: Pdf

Compatible: All Versions of Windows & Mac

Language: English

Delivery: Instant Download


You will get a PDF (13MB) file