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LUBRICATION SYSTEM

Exploded View

DISASSEMBLE GEAR CASE

Remove Oil Pump

Make sure that #1 cylinder is at TDC, compression

stroke. See Section 2.

Remove V-belt and fan (if equipped). Drain oil from

engine.

NOTE: Clean areas around fuel lines and injec-

tors to prevent dirt entry.

1. Remove the following parts, Fig. 6.

a. Glow plug wiring.

b. Glow plugs.

c. Injector pump bracket.

d. Remove fuel delivery lines.

Fig. 6 – Remove Fuel Delivery Lines

General Information2
Engine Model and Type Number2
Engine Identification Numbers2
Engine Serial Number2
In the Interest of Safety3
Engine Views4
Engine Specifications5
Injection Pump Timing8
Engine Date Code before 990101008
Engine Date Code after 981231008
Injector Pump Identification9
Engine Speed Specification Chart9
Maintenance Schedule12
Overhead Valve Train13
Cylinder Head and Valves13
Remove Cylinder Head14
Remove Water Pump and Exhaust Manifold14
Remove Valve Cover14
Remove Fuel Lines14
Remove Glow Plugs and Injectors15
Set Cylinder No. 1 at TDC15
Remove Rocker Arm Assembly and Push Rods15
Loosen Cylinder Head Bolts15
Remove Valve Stem Seal16
Disassemble Cylinder Head16
Remove Valves16
Cylinder Head Components16
Check Cylinder Head for Distortion17
Check Combustion Chamber17
Remove Combustion Chamber17
Check and Repair Valve Guides18
Check Valve Guide Bushing18
Remove Valve Guide Bushing18
Valve Seat Dimensions19
Installing Valve Guide Bushing19
Valve Dimensions19
Valves and Seats19
Disassemble Rocker Arm Shaft20
Check Valve Stem Cap20
Check Valve Springs20
Rocker Arm Components20
Checking Rocker Arm and Shaft21
Assemble Rocker Arm Shaft21
Assemble Cylinder Head22
Install Valve Stem Seals22
Install Cylinder Head Gasket23
Install Cylinder Head23
Install Valve Spring Seats and Valves23
Install Valve Springs23
Install Push Rods24
Install Rocker Arm Assembly24
Install Intake Manifold24
Install Glow Plugs and Injectors24
Install Water Pump25
Install Water Pump Pulley and Fan25
Install Exhaust Manifold25
General Assembly25
Adjust Valves26
Adjust Valve Clearances26
Install Valve Cover26
Timing Gears and Gear Case27
Removing Timing Gear Cover and Gears28
Remove Fuel Delivery Lines28
Removing Oil Pan28
Removing Crankshaft Pulley28
Checking Idler Gear and Shaft29
Checking Idler Gear Backlash29
Removing Oil Pump Gear29
Checking Gears29
Remove Gear Case30
Removing Injector Pump30
Removing Timing Gear Case30
Replace Timing Gear Cover Oil Seal31
Assemble Timing Gear Case and Gears31
Installing Oil Pump Rotor31
Installing Timing Gear Case31
Installing Timing Gear Cover32
Torque Screws32
Aligning Timing Marks – Typical32
Installing Idler Gear Shaft32
Installing Crankshaft Pulley33
Installing Oil Pan33
Installing Fuel Delivery Lines33
Flywheel and Rear Seal Retainer34
Removing Pan and Flywheel34
Removing Flywheel34
Installing Rear Seal Retainer and Flywheel35
Remove Rear Seal Retainer35
Replacing Oil Seal35
Install Oil Pan36
Install Flywheel36
Install Oil Pan with New Gasket36
Cylinder Block Disassembly37
Engine Stand38
Mounting Plate38
Engine Stand Fixture38
Removing Camshaft39
Removing Alternator39
Removing Valve Lifters39
Removing Starter and Bracket39
Removing Connecting Rod Assembly40
Removing Main Bearing Caps40
Removing Crankshaft40
Cylinder Block Inspection and Repair41
Checking Cylinder Block41
Cylinder Block Height41
Replacing Camshaft Bearing42
Checking Cam Bearing42
Checking Valve Lifter and Bore42
Checking Cylinder Bore42
Replacing Camshaft Plug43
Installing Cam Bearing43
Removing Camshaft Plug43
Installing Camshaft Plug43
Removing Oil Nozzle44
Installing Oil Nozzle44
Checking Run-Out45
Checking Journals45
Checking Crankshaft45
Crankshaft, Camshaft and Bearings45
Checking Main Bearing Clearances46
Checking Timing Gear46
Install Plastigage46
Torque Bearing Cap46
Checking Connecting Rod Bearing Clearances47
Checking Crankshaft End Play47
Torque Rod Cap47
Measure Clearance47
Checking Camshaft Journals48
Checking Camshaft Lobes48
Checking Camshaft48
Piston, Rings and Connecting Rod Inspection and Assembly49
Disassemble Piston and Connecting Rod49
Removing Piston Rings49
Disassembling Piston/Connecting Rod49
Checking Piston and Rings50
Checking Ring Grooves50
Checking End Gap50
Checking Piston Pin Bore50
Assembling Piston and Rod51
Checking Crankpin Bearing End51
Checking Connecting Rod51
Checking Piston Pin Bearing51
Assemble Piston Rings to Piston52
Installing Piston Rings52
Stagger Ring End Gaps52
Cylinder Block Assembly53
Install Crankshaft53
Installing Upper Main Bearings53
Installing Lower Main Bearings53
Installing Connecting Rod Bearings54
Installing Main Bearing Caps54
Installing Crankshaft54
Installing Piston and Connecting Rod55
Installing Oil Pick-Up55
Installing Rear Seal Retainer55
Installing Flywheel55
Install Timing Gear Case, Camshaft and Gears56
Installing Gear Case56
Installing Camshaft56
Rotate Crankshaft56
Aligning Timing Marks57
Assemble Idler Gear Shaft57
Install Alternator58
Installing Pulley58
Installing Timing Cover58
Table of Contents59
Fuel System and Related Components59
Fuel Injection System Components60
Injection Pump Timing Specifications61
Injector Pump61
- Checking Injector Pump Timing62
- Adjusting Injector Pump Timing63
- Installing Distributor Screw64
INJECTORS Remove Injectors64
- Checking Injectors65
- Install Injectors66
- Draining Water Collector67
- Change Fuel Filter67
- Checking Float Sensor67
- Checking Fuel Shut-Off Solenoid Wiring67
Injector Pump Identification68
- Adjust Idle Speed69
- Adjust Top no Load Speed69
- Electrical System70
- Electrical System Components72
- Glow Plug System73
- Glow Plug Specifications73
- Remove Glow Plug73
- Testing Glow Plug73
- Test Equipment73
- Preheat Timer and Glow Relay74
- Testing Preheat Timer74
- Testing Glow Relay74
- Keyswitches75
  - Fixed Timer Preheat Keyswitch75
  - Manual Preheat Keyswitch75
  - Keyswitch – Manual Preheat75
- 14 Amp Charging System76
- Test Equipment76
  - Regulator-Rectifier76
  - Testing Alternator – AC Output77
  - Testing Regulator-Rectifier – DC Output77
  - DC Shunt Installation77
- Charging Indicator Circuit78
- Testing Charging Indicator Bulb and Wiring78
  - Meter Setting78
  - Testing Bulb and Wiring78
- 40 Amp Charging System79
  - Test Equipment 40 Amp Alternator79
  - Testing Alternator – DC Output79
- Disassemble Alternator80
  - Remove Brush Retainer80
  - Remove Regulator80
- Checking Bearings81
  - Remove Ball Bearing81
  - Remove Brush End Housing81
  - Remove Rotor81
- Install Ball Bearing82
- Checking Rotor82
- Check Brushes82
- Check Slip Ring82
- Check Regulator83
- Check Rectifier83
- Assemble Alternator83
  - Installing Rotor83
  - Assemble Housings84
  - Install Rectifier84
  - Install Regulator84
  - Install Brush Cover84
  - Starter System – General Information86
  - Starter Current Draw Test – All86
- Test Equipment86
  - Testing Starter – All87
  - Starter Current Draw Test – no Load87
  - No Load Starter Current Draw Test87
  - Testing Starter Solenoid88
- Testing Solenoid88
- Exploded View of Starter – Typical88
- STARTER SOLENOID Test Equipment88
- Remove Solenoid89
- Remove Pinion and Clutch Assembly89
  - Removing Starter Motor89
  - Removing Solenoid89
- Check Pinion and Clutch Assembly90
- Assemble Pinion and Clutch Assembly90
  - Assembling Roller Bearings90
  - Assembling Drive Housing90
- Install Solenoid91
  - Replace Solenoid Plunger and Contacts91
  - Remove Plunger91
  - Checking Contacts91
  - Field Wire Terminal Side92
  - Battery Wire Terminal Side92
  - Contact Assemblies92
  - Loosen Nuts92
- Disassemble Starter Motor93
- Inspect Armature Commutator93
- Inspect Brushes93
  - Commutator Specifications93
  - Replace Brushes – 1.0 KW Starter94
  - Clean Terminals94
  - Install Brushes94
- Assemble Starter Motor95
  - Assembling Motor Housing and Brushes95
  - Installing End Cap95
  - Installing Starter Motor95
  - Wiring Diagram – 14 Amp Alternator (Typical)96
  - Starter System96
  - Wiring Diagram – 40 Amp Alternator (Typical)97
  - Lubrication System100
  - Recommended SAE Viscosity Grades100
  - Change Oil101
  - Oil Drain Plug101
  - Oil Fill Cap101
  - Change Oil Filter101
  - Check Oil Pressure102
  - Low Oil Pressure102
  - High Oil Pressure102
  - Disassemble Gear Case103
  - Remove Oil Pump103
  - Assemble Gear Case106
  - Install Oil Pump106
  - Install Injector Pump106
  - Cooling System109
  - Checking Cooling System110
  - Pressure Testing Cooling System110
  - Testing Radiator Cap110
  - Draining Coolant110
  - Removing Thermostat – Engine Cold111
  - Checking Thermostat111
  - Installing Thermostat111
  - Water Pump112
  - Inspecting Water Pump112
  - Removing Water Pump112
  - Remove Hoses112
  - Installing Water Pump113
  - Installing Coolant Inlet and Outlet113
  - Installing Fan and Pulley113
  - Install V-Belt113
  - Turbocharger114
  - Turbocharger Lubrication System115
  - Full Floating Bearing115
  - Turbocharger Cooling System116
  - Turbocharger Waste Gate117
  - Turbocharger Pressure Control System117
  - Crankcase Blow-By Recirculating System118
  - Checking Waste Gate Actuator118
  - Checking Waste Gate Valve118
  - Servicing and Operation Information119
  - Cautions on Handling Turbocharger119
  - Remove Turbocharger120
  - Remove Clamp120
  - Disconnecting Air Intake Tube120
  - Removing Air Intake Pipe120
  - Disconnect Coolant Hose121
  - Removing Coolant Line121
  - Removing Union Screw121
  - Removing Bracket Bolt122
  - Removing Oil Outlet Tube122
  - Removing Turbo Charger Bracket122
  - Checking Turbocharger123
  - Removing Turbocharger Assembly123
  - Checking Turbocharger Assembly123
  - Install Turbocharger124
  - Installing Turbocharger Assembly124
  - Installing Turbocharger Bracket124
  - Installing Oil Outlet Tube124
  - Installing Oil Inlet Line125
  - Installing Bracket Screw125
  - Installing Coolant Line125
  - Install Bracket Screw125
  - Install Coolant Outlet Hose126
  - Install Coolant Inlet Hose126
  - Installing Air Intake Pipe126
  - Installing Air Intake Hose126
  - Installation of Coolant Inlet Tube127
  - Installing Clamp127
  - Installing Tube127

Brand	Briggs & Stratton
Model	MS-1055
Category	Engine
Language	English

Briggs & Stratton MS-1055 User Manual

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Briggs & Stratton MS-1055 Specifications

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