Disassemble, Inspect Governor | Briggs & Stratton 273521, 271172

Assemble Governor

Vertical Models 97700, 99700, 110000, 120000, 210000, 280000, 310000, 330000

The mechanical governor is part of the oil slinger assembly (A, Figure 13) attached to the camshaft. The governor crank is mounted in the cylinder assembly.

Figure 13

Disassemble

1.Drain oil from engine.

2.Loosen governor lever nut (A, Figure 14, Figure 15).

Figure 14

Figure 15

3.Slide lever (B) off governor crank (C) and disconnect from governor link (D).

4.Remove push nut or clip and washer (E) from governor crank. Remove burrs from governor crank, and remove crank from inside cylinder.

5.Remove governor crank seal in cylinder, if equipped.

Inspect Governor

1.Check governor gear/oil slinger assembly for worn weight pins, worn or damaged governor cup, and chipped or damaged teeth on paddles of oil slinger.

2.If wear or damage is found, replace the governor gear/oil slinger assembly.

3.Check governor crank for wear or damage. Replace if necessary.

Assemble Governor

1.Install new governor crank seal in cylinder, if equipped.

2.Install governor crank from inside cylinder. Slide washer (when used) on crank and install new push nut or clip.

3.Slide governor lever on crank and finger- tighten bolt and nut until crank turns with slight resistance.

4.Rotate crank until paddle contacts cup on governor gear/oil slinger assembly.

5.Install new sump gasket(s) of same thickness as originally removed from cylinder.

5

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Image 94

Briggs & Stratton 273521, 271172, 270962, CE8069, 276535 manual Disassemble, Inspect Governor, Assemble Governor

Contents

Single Cylinder OHV Air-CooledEngines Briggs & ledooStrattonQuality Starts With A Master Service Technician Repair Manuals for other Copyright 2009 Briggs & Stratton Corporation FORWARDAll rights reserved This Engine Repair Manual includes the following Engine Models SECTION 1 - Safety, Maintenance and Adjustments 1 2 3 4 5 6 7 8 9 10 11 12SECTION 2 - Troubleshooting Page SECTION 1 - SAFETY, MAINTENANCE, AND ADJUSTMENTS Signal Words in Safety Messages ENGINE SAFETYHazard Symbols and Meanings Before performing adjustments or repairs When testing for spark Explosion and fire could result BRIGGS & STRATTON MODEL NUMBERING SYSTEM BRIGGS & STRATTON NUMERICAL IDENTIFICATION SYSTEMYOUR KEY TO THE WORLD’S FINEST ENGINES Fuel must meet these requirements ENGINE MAINTENANCEFuel and Oil Recommendations High Altitude Every 25 Hours or Annually Maintenance Chart First 5 HoursEvery 8 Hours or Daily Every 50 Hours or Annually Inspect Brake and Switches Assemble Flywheel Brake Combustion Chamber Air Filter Figure Figure Figure Figure Figure Figure Remove InstallSnow Hood Inspection NOTICE Oil and Oil FilterSpark Plug NOTICE Cooling System Remote Control Wire Travel ENGINE ADJUSTMENTSRemote Controls Horizontal Models 110000, 120000, 2.Move throttle lever to fast position Static Adjustment Governor AdjustmentsTop No Load Adjustment Vertical Models 97700, 2.Place throttle in FAST position Initial Adjustment All Models Final Adjustment All Models Adjust Valve Clearance Vertical Models 110000, 120000 Early Production SECTION 2 - TROUBLESHOOTING OIL GARD SYSTEMS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 49 ENGINE WILL NOT START - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 49 ENGINE STARTS AND RUNS WITH LOW OIL Engine Stopped SYSTEMS CHECK1 Check Ignition Engine Running 2 Check Carburetion Testing Fuel Shut Off SolenoidSolenoid Wiring Test Solenoid Plunger Test 3 Check Compression Possible Causes for Poor Compression Digital Multimeter ELECTRICAL SYSTEMSEquipment Used for Testing DC Shunt Complaint Alternator System DiagnosisPossible Causes Alternator Identification 3.3 Amp DC Only Figure 1.0.5 Amp DC Only Figure2.14 Volt AC Only Figure 4.Dual Circuit Figure 7.10/16 Amp DC Figure 6.5/9 Amp DC Figure8.20 Amp DC Figure 5 Amp DC Only Alternator Testing Alternator OutputFlywheel Identification 3-AmpDC Only Alternator 14-VoltAC Alternator Test Diode Test Alternator Output-AC Dual Circuit AlternatorTest Alternator Output Test Alternator Output-DC Tri-CircuitAlternator Test Diode Test Alternator Output Charging Circuit Test RED WireLighting Circuit Test WHITE Wire Test Diode Test Alternator Output 5 & 9 Amp DC Regulated AlternatorTest Regulator-Rectifier receptacle 10 & 16 Amp DC Regulated AlternatorTest Alternator Output Test Regulator - Rectifier 2.Install shunt to negative -battery terminal NOTICE DC Output Charging Wire Test20 Amp DC Regulated Alternator Test Alternator Output Figure 5.Rotate selector to DC volts position SYSTEM 3, SYSTEM ELECTRIC STARTERSModel Series 97700, 99700, 110000, Test Interlock Switch Test Starter Motor 12 Volt DC Starter Motor Test Interlock Switch WiringTest Starter Motor Model Series 120000, 150000, 200000, 120-VoltAC Starter MotorTest Solenoid Battery Installation BATTERIESBattery and Cable Recommendations Charging Battery Testing Battery Hard Starting or Will Not Start EQUIPMENT AFFECTING ENGINE OPERATIONOIL GARD SYSTEMS Engine Won’t Stop On/Off Switch Light Does Not Flash Engine Starts and Runs With Low Oil SECTION 3 - EXHAUST SYSTEMS Horizontal Models 110000, 120000, MUFFLER SERVICESpark Arresters Remove Guard and Muffler Install Muffler and Guard Never reinstall broken or damaged componentsInspect Exhaust System Remove Guard and Muffler Horizontal Models 200000,Shown is a typical muffler application Figure 3.Remove muffler support screws A, Figure Inspect Exhaust System Never reinstall broken or damaged componentsInstall Muffler and Guard All exhaust system components must be inspected whenever the exhaust system is disassembled. Check muffler mounting bracket and/or muffler adapters for cracked welds or breakage. Check muffler for split seams, loose internal parts, or cracked welds. Replace any damaged parts with new OEM parts Vertical Models 97700, 99700, 110000, Never reinstall broken or damaged componentsInstall Muffler and Guard Inspect Exhaust System Inspect Exhaust System Never reinstall broken or damagedInstall Muffler and Guard components Remove Muffler Never reinstall broken or damaged componentsInspect Exhaust System Install Muffler Shown is a typical muffler application Figure Never reinstall broken or damaged componentsInstall Muffler Remove Muffler SECTION 4 - FUEL SYSTEMS AND CARBURETION FUEL SYSTEMS Removal InstallationFuel Pump Inspection Horizontal Models 110000, 120000, 150000, 200000, Fuel FilterFuel Tanks and Shut-offValves Removal Vertical Models 97700, 99700, 110000, InstallationInstallation Vertical Model Inspection Installation2.Inspect fuel tank for •Corrosion •Leaks CARBURETION Carburetor Identification Vertical Models 97700, 99700, 110000, Carburetor Service LMS CarburetorRemove Carburetor Disassemble Carburetor Inspect and Clean Carburetor Components Assemble Carburetor Install Carburetor LMS Carburetor Horizontal Models 110000, 120000, Remove Carburetor •Passages in the fixed main jet bowl nut Inspect and Clean Carburetor ComponentsDisassemble Carburetor Assemble Carburetor edge of the plug with a non-hardeningsealant ReadyStart Carburetor Vertical Model Install CarburetorRemove Carburetor Disassemble Carburetor Inspect and Clean CarburetorAssemble Carburetor LMT Carburetor 3.Move clamp and disconnect hose from carburetor Remove CarburetorDisassemble Carburetor Inspect and Clean Carburetor Assemble CarburetorPage Install Carburetor bracket.4 Remove Carburetor Nikki Carburetor Vertical Models 280000, 310000,Disassemble Carburetor Inspect and Clean Carburetor 11.Remove the main jet and seal •Choke shaft and choke valve Assemble Carburetor 12.Install new o-ringon fuel transfer tube E Install Carburetor Nikki LP/NG Mixer Vertical Model 310000 Gaseous Fuel SECTION 5 - GOVERNOR SYSTEMS GOVERNOR SYSTEMS Linkage and Spring Orientation Horizontal Models 110000, 120000, 150000, 200000, Governor ServiceGoverned RPM Limits Disassemble Inspect Governor Assemble Inspect Governor DisassembleAssemble Governor 8. Adjust governor system per Section SECTION 6 - CYLINDER HEAD AND VALVES CYLINDER HEADS AND VALVES Remove Cylinder Head Disassemble Cylinder Head Inspection Assemble Cylinder Head Install Cylinder Head NOTE: Do not torque each screw in one step as it may result in a warped cylinder head. Step- torque all screws to approximately 1/3 of final torque value, then to 2/3 final torque value, then finish at final torque value Disassemble Cylinder Head Remove Cylinder HeadModels 200000, 210000, 280000, 310000, Inspection Install Cylinder Head mm or more, replace the entire head. If plug gauge is not available, see Section 12 - Engine Specifications for the valve guide reject dimensionAssemble Cylinder Head 4.Install push rods through guides and into same positions as removed. Ensure rods are seated in valve tappets. Place valve stem caps if used on valve stems Figure Page SECTION 7 - STARTERS Horizontal Models 110000, 120000, 150000, 200000, REWIND STARTERSRemove Blower Housing / Rewind Starter Vertical Models 97700, Vertical Models 110000, Vertical Model Service Rewind StarterDisassemble Rewind Starter Inspect Rewind Starter Parts Assemble Rewind Starter Vertical Models 97700, 2.Install the oil fill tube and dipstick CVertical Models 110000, Disassemble Starter Clutch Service Starter ClutchVertical Model Inspect Clutch Parts System 3, System ELECTRIC STARTERSReplace Ring Gear Check Starter Drive and Clutch Remove Starter Drive and Clutch Install Starter Drive and Clutch12 Volt Starters Check Starter Drive and Clutch Assemble Starter Motor Drive - C-Ring Retainer Disassemble Starter Drive - Roll Pin Retainer 120-VoltStarters Assemble Starter Drive - Roll Pin Retainer SECTION 8 - LUBRICATION SYSTEMS Install Breather EXTENDED OIL FILL AND DIPSTICKBREATHERS Horizontal Models 110000, 120000, Check Breather 3.Inspect oil drain-backholes C, Figure 3 to make sure they are open. Clean as neededInstall Breather Remove Breather Remove Breather Install Breather8Current Production Check Breather Oil Dipper Lubrication LUBRICATION SYSTEMSInstall Breather Oil Slinger Lubrication Pressure Lubrication Oil Pump ServiceOil Slinger with Pressure Filtration Vertical Models 120000, 210000, 280000, 310000, Remove Pump Screen Inspect Oil Pump Parts Install Screen and Gerotor PumpOil Filter and Adapters Remove Test Oil Pressure Switch Oil Pressure SwitchInstall Oil Gard Systems Troubleshooting Lead Wire ColorsLead Wire Colors Identification SECTION 9 - CYLINDERS, COVERS AND SUMPS Reconditioning Bore CYLINDERInspect Cylinder Resizing Bore Check Bearings MAIN BEARINGSCleaning Cylinder Check Plain Bearings Magneto Bearing Tools Replace BearingsReplace DU Bearings PTO Bearing Tools Replace Ball Bearing Horizontal Models 120000, Bearing Removal Tools Bearing Installation ToolsReplace Ball Bearing Horizontal Models 200000, Tool/Part Replace Ball Bearing All Vertical Models COVERS AND SUMPS Installation Figure Figure FigurePage SECTION 10 - CRANKSHAFTS, CAMSHAFTS, BALANCING SYSTEMS, AND GEAR REDUCTIONS Inspect CRANKSHAFTS AND CAMSHAFTSRemove Crankshaft and Camshaft Check Crankshaft Install Crankshaft and Camshaft Install Crankcase Cover or Sump Check and Adjust Crankshaft End Play Assemble Gear Reduction GEAR REDUCTIONDisassemble Gear Reduction Inspect Gear Reduction Parts Fill Gear Case with Lubricant Remove Auxiliary PTO Drive Shaft AUXILIARY PTOInspection Assemble Auxiliary PTO Drive Shaft Disassemble COUNTERBALANCE SYSTEMSSynchro-BalanceSystem Remove Counterbalance System Install Assemble Remove InstallAVS Balance System DisassemblePage SECTION 11 - PISTONS, RINGS AND CONNECTING RODS Disassemble PISTONS, RINGS, & CONNECTING RODSRemove Piston and Connecting Rod Inspect Assemble Check Connecting RodCheck Ring End Gap Install Piston and Connecting Rod SECTION 12 - ENGINE SPECIFICATIONS FASTENER TORQUE SPECIFICATIONS MODEL 110000 HORIZONTAL SERIESENGINE SPECIFICATIONS TORQUE REJECT DIMENSIONS FASTENER TORQUE SPECIFICATIONS MODEL 120000 HORIZONTAL SERIESENGINE SPECIFICATIONS TORQUE Main Bearing FASTENER TORQUE SPECIFICATIONS MODEL 150000 HORIZONTAL SERIESENGINE SPECIFICATIONS TORQUE REJECT DIMENSIONS FASTENER TORQUE SPECIFICATIONS MODEL 200000 HORIZONTAL SERIESENGINE SPECIFICATIONS TORQUE Main Bearing FASTENER TORQUE SPECIFICATIONS MODEL 210000 HORIZONTAL SERIESENGINE SPECIFICATIONS TORQUE Main Bearing FASTENER TORQUE SPECIFICATIONS MODELS 97700 & 99700 VERTICAL SERIESENGINE SPECIFICATIONS TORQUE REJECT DIMENSIONS FASTENER TORQUE SPECIFICATIONS MODEL 110000 VERTICAL SERIESENGINE SPECIFICATIONS TORQUE REJECT DIMENSIONS FASTENER TORQUE SPECIFICATIONS MODEL 120000 VERTICAL SERIESENGINE SPECIFICATIONS TORQUE REJECT DIMENSIONS FASTENER TORQUE SPECIFICATIONS MODEL 210000 VERTICAL SERIESENGINE SPECIFICATIONS TORQUE REJECT DIMENSIONS FASTENER TORQUE SPECIFICATIONS MODEL 280000 VERTICAL SERIESENGINE SPECIFICATIONS TORQUE Main Bearing FASTENER TORQUE SPECIFICATIONS MODEL 310000 VERTICAL SERIESENGINE SPECIFICATIONS TORQUE Main Bearing FASTENER TORQUE SPECIFICATIONS MODEL 330000 VERTICAL SERIESENGINE SPECIFICATIONS TORQUE Main Bearing