Vanguard OHV V-Twin Repair Manual Page 76
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Vanguard
TM
Twin-Cylinder OHV Liquid-Cooled Engine
Section 6 - Final Adjustments & Specifications
Page 71
SECTION 6
FINAL ADJUSTMENTS AND
SPECIFICATIONS
GENERAL INFORMATION
The purpose of the mechanical governor is to maintain,
within certain limits, a desired engine speed, even
though loads may vary. The governor spring tends to pull
the throttle open. The force of the flyweights, which are
operated by centrifugal force, tends to close the throttle.
The engine speed at which these two forces balance is
called the governed speed. The governed speed can be
varied by changing governor spring tension. If a
governor spring must be replaced, consult the
appropriate Illustrated Parts List. Select the proper
governor springs by engine type number.
NOTE: After a new governor spring is installed,
check engine top governed speed with an
accurate tachometer.
REMOTE GOVERNOR CONTROLS
VanguardE liquid cooled OHV Twin cylinder engines are
equipped for remote governor controls, Fig. 181.
Speed Regulation
Remote governor controls (supplied by equipment
manufacturer) control engine speed by increasing or
decreasing tension on governor spring(s) to obtain
desired engine speed at all positions.
Fig. 181
Governed Idle
VanguardE liquid cooled OHV Twin cylinder engines are
equipped with a governed idle system, Fig. 182. A
throttle restrictor permits the engine to maintain
engine speed when a load is applied with the equipment
control in the SLOW position.
Fig. 182
Remote Control Wire Travel
In order to make proper remote control adjustments, the
travel of the remote control wire must be
not less than 1-
3/8” (35 mm)
with controls mounted in equipment, Fig.
183.
Fig. 183
Speed Control Wire Adjustment
1. Loosen control casing clamp at governor control
bracket.
2. Move speed control lever to “FAST” position.
3. Move control casing and wire in direction shown
by arrow until governor control swivel is at end of
travel, Fig. 184.
2-1/8” MIN (54MM)
1-3/8” MIN. TRAVEL
(35MM)
- Vanguard Twin Cylinder 1
- OHV Liquid-Cooled Engines 1
- MODEL 473100 2
- COMMERCIAL POWER 2
- SAFETY INFORMATION 3
- Table Of Contents 6
- SECTION 1 GENERAL INFORMATION 8
- ENGINE IDENTIFICATION 9
- MAINTENANCE SCHEDULE 10
- FUEL AND OIL RECOMENDATIONS 11
- CHANGING OIL AND OIL FILTER 12
- CHANGE COOLANT 12
- CLEANING DEBRIS 13
- ADJUST FAN BELT 13
- AIR CLEANER MAINTENANCE 13
- REPLACE SPARK PLUG 14
- Vanguard 15
- SECTION 2 16
- TROUBLESHOOTING 16
- STARTER CURRENT DRAW TEST 17
- NO LOAD STARTER CURRENT DRAW 18
- CHECK CARBURETION 21
- FUEL SHUT-OFF SOLENOID 21
- CYLINDER BALANCE TEST 23
- CYLINDER LEAKDOWN TEST 24
- CHECKING COOLING SYSTEM 26
- CHECK OIL PRESSURE SWITCH 27
- CHECK OIL PRESSURE 28
- CHARGING SYSTEM 28
- BATTERY INFORMATION 30
- EQUIPMENT AFFECTING ENGINE 31
- OPERATION 31
- SECTION 3 32
- ENGINE DISASSEMBLY 32
- DISCONNECT FUEL LINES 33
- REMOVE FAN ASSEMBLY 33
- REMOVE CARBURETOR 34
- REMOVE STARTER 35
- REMOVE INTAKE MANIFOLD 36
- REMOVE ALTERNATOR 37
- REMOVE CYLINDER HEADS 37
- REMOVE CRANKCASE COVER 38
- REMOVE CAMSHAFT 39
- REMOVE PISTONS, RODS 39
- CRANKSHAFT 39
- SECTION 4 40
- ENGINE OVERHAUL 40
- Section 4 - Engine Overhaul 41
- BEARINGS 42
- DISASSEMBLY AND INSPECTION 43
- TOOL #19340 44
- NEW PISTON RING 44
- CRANKPIN BEARING 45
- PISTON PIN BEARING 45
- CYLINDER HEAD INSPECTION AND 46
- OIL PUMP 49
- REPLACING WATER PUMP SEAL 50
- REPLACING STARTER SOLENOID 51
- Fig. 102 52
- Fig. 103 52
- Fig. 104 52
- Fig. 105 53
- Fig. 106 53
- Fig. 107 53
- Fig. 108 53
- Fig. 109 54
- Fig. 110 54
- Fig. 111 54
- Fig. 112 54
- Fig. 113 55
- Fig. 114 55
- Fig. 115 55
- Fig. 116 55
- CARBURETOR INSPECTION AND 56
- Fig. 121 57
- Fig. 122 57
- Fig. 123 57
- Fig. 124 57
- Fig. 125 58
- Fig. 126 58
- Fig. 127 58
- Fig. 128 59
- Fig. 129 59
- Fig. 130 59
- Fig. 131 59
- Fig. 132 60
- Fig. 133 60
- Fig. 134 60
- Fig. 135 60
- SECTION 5 62
- ENGINE ASSEMBLY 62
- Fig. 140 63
- Fig. 141 63
- Fig. 142 63
- INSTALL CAMSHAFT 64
- INSTALL GOVERNOR GEAR 64
- INSTALL CRANKCASE COVER 64
- INSTALL STARTER 65
- INSTALL ALTERNATOR 65
- INSTALL ROCKER ARMS 66
- INSTALL FLYWHEEL 66
- INSTALL CYLINDER HEADS 66
- ADJUST VALVE CLEARANCE 67
- INSTALL ARMATURES 67
- INSTALL FAN ASSEMBLY 68
- INSTALL INTAKE MANIFOLD 69
- ELBOW ASSEMBLY 69
- Fig. 164 70
- Fig. 165 70
- Fig. 166 70
- Fig. 167 70
- ADJUST GOVERNOR 71
- INSTALL MUFFLER 71
- INSTALL RADIATOR 72
- INSTALL AIR CLEANER ASSEMBLY 72
- Fig. 176 73
- Fig. 177 73
- Fig. 178 73
- Fig. 179 73
- Fig. 180 74
- Section 5 - Engine Assembly 75
- SECTION 6 76
- FINAL ADJUSTMENTS AND 76
- SPECIFICATIONS 76
- CARBURETOR ADJUSTMENT 77
- Fig. 187 78
- Fig. 188 78
- Fig. 189 78
- Fig. 190 79
- Fig. 191 79
- Fig. 192 79
- Fig. 193 79
- MODEL 473100 SPECIFICATIONS 80
- ENGINE HARNESS 82
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