Tecumseh HH100 User Manual

Contents
Page
CHAPTER 1. GENERAL INFORMATION ................................................................................................................................... 1
SECTION 1. ENGINE IDENTIFICATION .............................................................................................................................1
SECTION 2. ENGINE CARE ...............................................................................................................................................2
CHAPTER 2. AIR CLEANERS, CARBURETORS, GOVERNORS AND LINKAGE ................................................................... 4
SECTION 1. AIR CLEANERS .............................................................................................................................................. 4
SECTION 2. GENERAL CARBURETOR INFORMATION ..................................................................................................5
SECTION 3. TECUMSEH CARBURETORS ....................................................................................................................... 6
SECTION 4. WALBRO CARBURETORS ..........................................................................................................................10
HH80 - 120, VH80 - 100 .............................................................................................................................................. 10
SECTION 5. OVERHEAD VALVE ENGINE CARBURETORS .......................................................................................... 13
SECTION 6. GOVERNORS ...............................................................................................................................................16
SECTION 7. IMPULSE FUEL PUMP ................................................................................................................................. 19
CHAPTER 3. REWIND STARTERS, ELECTRIC STARTERS, TROUBLESHOOTING AND GENERATORS.........................20
SECTION 1. REWIND STARTERS.................................................................................................................................... 20
SECTION 2. ELECTRIC STARTERS ................................................................................................................................22
SECTION 3. 12 VOLT STARTER TROUBLE SHOOTING CHART...................................................................................25
CHAPTER 4. GENERAL VALVE INFORMATION, CYLINDER HEAD AND BREATHER ASSEMBLY ...................................27
SECTION 1. GENERAL VALVE INFORMATION ............................................................................................................... 27
SECTION 2. CYLINDER HEAD ......................................................................................................................................... 31
SECTION 3. BREATHER ASSEMBLIES ...........................................................................................................................32
CHAPTER 5. PISTON AND RINGS, CONNECTING RODS AND CRANKSHAFTS ................................................................33
SECTION 1. PISTON AND RINGS .................................................................................................................................... 33
SECTION 2. CONNECTING RODS...................................................................................................................................35
SECTION 3. CRANKSHAFTS ........................................................................................................................................... 36
CHAPTER 6. CAMSHAFT, BEARINGS AND SEALS...............................................................................................................37
SECTION 1. CAMSHAFT ..................................................................................................................................................37
SECTION 2. BEARINGS....................................................................................................................................................38
SECTION 3. SEALS...........................................................................................................................................................42
CHAPTER 7. DYNA-STATIC
®
BALANCING SYSTEM .............................................................................................................43
CHAPTER 8. IGNITION SYSTEMS, CHARGING SYSTEMS BATTERY SERVICE and
ELECTRICAL CONTROL PANELS .......................................................................................................................................... 45
SECTION 1. IGNITION SYSTEMS .................................................................................................................................... 45
SECTION 2. CHARGING SYSTEMS.................................................................................................................................48
SECTION 3. BATTERY SERVICE ..................................................................................................................................... 53
SECTION 4. ELECTRICAL CONTROL PANELS .............................................................................................................. 56
CHAPTER 9. TROUBLESHOOTING ........................................................................................................................................61
CHAPTER 10. 8 H.P. & LARGER ENGINE SPECIFICATIONS AND TORQUES ....................................................................66
SECTION 1. CROSS REFERENCE LIST FOR TABLE OF SPECIFICATIONS ................................................................ 66
SECTION 2. TORQUE SPECIFICATIONS ........................................................................................................................ 70
8 H.P. & LARGER ENGINES (EXCEPT VALVE-IN-HEAD)......................................................................................... 70
SECTION 3. VALVE-IN-HEAD ENGINE SPECIFICATIONS ............................................................................................. 71
SECTION 4. TORQUE SPECIFICATIONS ........................................................................................................................ 73
VALVE-IN-HEAD.......................................................................................................................................................... 73
CHAPTER 11. EDUCATIONAL MATERIALS AND TOOLS......................................................................................................74
i
C Tecumseh Products Company
1998

Tecumseh HH100 Specifications

General

Horsepower	10 HP
Fuel Type	Gasoline
Cooling System	Air-cooled
Ignition System	Magneto
Spark Plug	Champion J8C
Displacement	163 cc (10.0 cu in)