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Tecumseh H22 User Manual

Tecumseh H22
124 pages
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This manual covers engine models:
ECV100 - 120, H22 - 80, HH40 - 70, HHM80, HM70 - 100,
HMSK70 - 110, HMXL70, HS40 - 50, HSK30 - 70, HSSK40 - 50,
HT30 - 35, HXL35, LAV30 - 50, LEV80 - 120, TNT100 - 120,
TVM125 - 220, TVXL170 - 220, TVS75 - 120, TVXL105 - 115,
V40 - 80, VH40 - 70, V60 - 70, VM70 - 100
Model numbers are located on the engine shroud.
3 TO 11 HP
4-CYCLE
L-HEAD
ENGINES
T E C H N I C I A N ' S H A N D B O O K
TECUMSEH

Table of Contents

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Tecumseh H22 Specifications

General IconGeneral
BrandTecumseh
ModelH22
CategoryEngine
LanguageEnglish

Summary

Chapter 1 General Information

Engine Identification

Locates Tecumseh engine model, specification, and serial numbers on the blower housing or decal.

Interpretation of Model Number

Explains how the first letter in a model number indicates the basic engine type.

Fuel

Recommends unleaded regular gasoline for engines, explaining benefits of unleaded fuel.

Engine Oil

Details oil type, viscosity, and capacities for various Tecumseh engine models.

Tune-Up Procedure

Provides a minor tune-up procedure for proper engine operation.

Chapter 2 Air Cleaners

Troubleshooting or Testing

Identifies air cleaner issues causing unsatisfactory engine performance.

Service

Details service for polyurethane and paper filter elements, including cleaning and replacement.

Chapter 3 Carburetors and Fuel Systems

Carburetor Identification

Provides simple procedures to identify dual system, Series 1, 3, 4, and diaphragm carburetors.

Carburetion Troubleshooting

A chart that diagnoses carburetor symptoms based on air, diaphragm, and fuel system problems.

Carburetor Pre-sets and Adjustment

Outlines pre-set procedures for Tecumseh and Walbro carburetors before final adjustments.

Chapter 4 Governors and Linkage

Troubleshooting

Diagnoses engine problems suspected to be caused by the governor system.

Engine Overspeeding

Addresses issues where the engine runs too fast and outlines immediate actions.

Chapter 5 Rewind Starters

Service

Covers starter removal, inspection, and disassembly for diagnosis and repair.

Disassembly Procedure

Provides step-by-step instructions for disassembling rewind starters.

Chapter 6 Electrical Systems

Troubleshooting Electrical Starter Circuit Flow Chart

A diagnostic flowchart for issues with the electrical starter circuit.

Troubleshooting Electrical Charging Circuit Flow Chart

A diagnostic flowchart for issues with the electrical charging circuit.

Testing Procedure

Details testing procedures for starting and charging circuits using testers.

Chapter 7 Flywheel Brake Systems

Service

Outlines service procedures if the brake system fails to kill ignition or stop the blade.

Brake Lever and Pad

Describes inspection and replacement of the brake lever and pad assembly.

Chapter 8 Ignition

Ignition Troubleshooting

Provides a flowchart for diagnosing engine ignition problems.

Spark Plug Service

Covers spark plug removal, cleaning, adjustment, and replacement procedures.

Chapter 9 Internal Engine and Cylinder

Engine Operation Problems

Categorizes engine issues like knocks, overheating, surges, misfires, vibration, and oil consumption.

Disassembly Procedure

Details the step-by-step process for disassembling engine components.

Cylinders

Describes checking and re-sizing the cylinder bore for wear or scoring.

Chapter 10 Engine Specifications

Four Cycle Torque Specifications

Lists torque specifications for various engine components across different models.

Solid State and External Ignition

Provides air gap settings for solid state and external ignition systems.

Chapter 11 Educational Materials and Tools

Sears Craftsman Cross Reference Charts

Provides cross-reference charts for Sears Craftsman and Tecumseh part numbers.