Komatsu 12V170-1 Series Diesel Engine Shop Manual SEBE61800104

Description

• Model List:
  • 12V170-1 Series Diesel Engine

• 1. MAIN MENU
• 2. CONTENTS
• 3. GENERAL
• 3.1. SPECIFICATIONS
• 3.2. ENGINE PERFORMANCE CURVE
• 3.3. WEIGHT TABLE
• 4. STRUCTURE AND FUNCTION
• 4.1. GENERAL STRUCTURE
• 4.2. INTAKE AND EXHAUST SYSTEM
• 4.2.1. CYLINDER BLOCK
• 4.2.2. MAIN REVOLVING PART
• 4.2.3. TIMING GEAR
• 4.2.4. FLYWHEEL AND FLYWHEEL HOUSING
• 4.3. LUBRICATION SYSTEM
• 4.3.1. LUBRICATION SYSTEM CHART (With bypass filter)
• 4.3.2. OIL PUMP
• 4.3.3. OIL FILTER
• 4.3.4. OIL COOLER
• 4.3.5. OIL COOLER BYPASS VALVE
• 4.3.6. PISTON COOLING VALVE
• 4.3.7. MECHANICAL PUMP
• 4.4. FUEL SYSTEM
• 4.4.1. FUEL SYSTEM CHART
• 4.4.2. FUEL INJECTION PUMP
• 4.4.3. FEED PUMP
• 4.4.4. FUEL INJECTION NOZZLE
• 4.4.5. FUEL INJECTION PUMP DRIVE
• 4.4.6. FUEL FILTER
• 4.4.7. INJECTION PUMP RACK CONTROLLER
• 4.4.8. AUTOMATIC TIMER
• 4.4.9. FUEL SOLENOID
• 4.4.10. ENGINE STOP MOTOR
• 4.5. COOLING SYSTEM
• 4.5.1. COOLING SYSTEM CHART
• 4.5.2. WATER PUMP
• 4.5.3. WATER PUMP DRIVE
• 4.5.4. FAN DRIVE AND TENSION PULLEY
• 4.5.5. CORROSION RESISTOR
• 4.5.6. THERMOSTAT
• 4.6. ACCESSORY
• 4.6.1. AIR COMPRESSOR MOUNTING
• 4.6.2. AIR COMPRESSOR
• 4.6.3. ALTERNATOR WITH REGULATOR
• 4.6.4. STARTING MOTOR
• 4.6.5. AIR STARTING MOTOR
• 5. TESTING AND ADJUSTING
• 5.1. COOLING SYSTEM
• 5.1.1. CHECKING AND ADJUSTING FAN BELT TENSION
• 5.1.2. CHECKING AND ADJUSTING ALTERNATOR BELT TENSION
• 5.2. ENGINE BODY
• 5.2.1. ADJUSTING VALVE CLEARANCE
• 5.2.2. MEASURING COMPRESSION PRESSURE
• 5.2.3. MEASURING BLOWBY
• 5.3. FUEL SYSTEM
• 5.3.1. TESTING AND ADJUSTING FUEL INJECTION TIMING
• 5.3.2. ADJUSTING FUEL INJECTION PUMP RACK LINKAGE
• 5.3.3. ADJUSTING ENGINE STOP MOTOR
• 5.3.4. ADJUSTING ENGINE SPEED SENSOR
• 5.3.5. ADJUSTING FUEL INJECTION PRESSURE (VALVE CRACKING PRESSURE)
• 5.3.6. FUEL INJECTION PUMP CALIBRATION DATA
• 5.4. PERFORMANCE TEST
• 5.4.1. RUNIN STANDARD
• 5.4.2. PERFORMANCE TEST CRITERIA
• 5.4.3. TESTING AND ADJUSTING DATA
• 5.4.4. TESTING AND ADJUSTING TOOL LIST
• 5.5. TROUBLESHOOTING
• 5.5.1. POINTS TO REMEMBER WHEN TROUBLESHOOTING
• 5.5.2. METHOD OF USING TROUBLESHOOTING CHART
• 5.5.3. S1 Starting performance is poor (Starting always takes time)
• 5.5.4. S2 Engine does not start
• 5.5.4.1. Engine does not turn
• 5.5.4.2. Engine turns but no exhaust smoke comes out (Fuel is not being injected)
• 5.5.4.3. Exhaust smoke comes out but engine does not start (Fuel is being injected)
• 5.5.5. S3 Engine does not pickup smoothly (Followup is poor)
• 5.5.6. S4 Engine stops during operations
• 5.5.7. S5 Engine does not rotate smoothly (Hunting)
• 5.5.8. S6 Engine lacks output (No power)
• 5.5.9. S7 Exhaust smoke is black (Incomplete combustion)
• 5.5.10. S8 Oil consumption is excessive (Or exhaust smoke is blue)
• 5.5.11. S9 Oil becomes contaminated quickly
• 5.5.12. S10 Fuel consumption is excessive
• 5.5.13. S11 Oil is in cooling water, or water spurts back, or water level goes down
• 5.5.14. S12 Oil pressure caution lamp lights up (Drop in oil pressure)
• 5.5.15. S13 Oil level rises
• 5.5.16. S14 Water temperature becomes too high (Overheating)
• 5.5.17. S15 Abnormal noise is made
• 5.5.18. S16 Vibration is excessive
• 6. DISASSEMBLY AND ASSEMBLY
• 6.1. DISASSEMBLY
• 6.2. ASSEMBLY
• 7. MAINTENANCE STANDARD
• 7.1. INTAKE AND EXHAUST SYSTEM
• 7.1.1. TURBOCHARGER
• 7.2. COOLING SYSTEM
• 7.2.1. WATER PUMP
• 7.3. ENGINE BODY
• 7.3.1. CYLINDER HEAD
• 7.3.2. VALVES AND VALVE GUIDE
• 7.3.3. CROSSHEAD AND CROSSHEAD GUIDE
• 7.3.4. ROCKER ARM SHAFT
• 7.3.5. PUSH ROD AND CAM FOLLOWER
• 7.3.6. FLYWHEEL, FLYWHEEL HOUSING
• 7.4. LUBRICATION SYSTEM
• 7.4.1. OIL PUMP
• 7.4.2. MAIN RELIEF VALVE, PISTON COOLING VALVE AND OIL COOLER BYPASS VALVE
• 7.5. COOLING SYSTEM
• 7.5.1. WATER PUMP
• 8. REPAIR AND REPLACEMENT OF PARTS
• 8.1. CYLINDER HEAD
• 8.1.1. TESTING AND INSPECTING
• 8.1.2. REPAIRING MOUNTING FACE OF CYLINDER HEAD BY GRINDING
• 8.1.3. REPLACING VALVE SEAT INSERTS
• 8.1.4. REPLACING NOZZLE HOLDER SLEEVE
• 8.1.5. REPLACING VALVE GUIDE
• 8.1.6. REPLACING CROSS HEAD GUIDE
• 8.1.7. GRINDING THE VALVE
• 8.2. CYLINDER BLOCK
• 8.2.1. TESTING AND INSPECTING
• 8.2.2. GRINDING THE TOP SURFACE OF CYLINDER BLOCK
• 8.2.3. REPLACING MAIN METAL CAP
• 8.2.4. REPLACING CAM BUSHING
• 8.2.5. CRANKSHAFT
• 8.2.6. REPAIRING THE CRANKSHAFT
• 8.2.7. CONNECTING ROD
• 8.2.8. REPLACING THE CAM GEAR
• 8.2.9. REPLACING FLYWHEEL RING GEAR