Content

D12 engine

• D12 Engine design basics
• Cylinder block, crankshaft housing, flywheel housing
• Crank mechanism
• Gear drive
• Lubrication system
• Fuel supply system
• Cooling system
• Air intake / exhaust system
• Air compressor
• Electrical system
• D12 engine basic data
• Main technical characteristics of the D12 engine
• D12 engine - clearances between main parts
• Tightening methods and torques for the main bolts of the D12 engine
• Locking compounds and additional materials used on the diesel engine D12

D12 engine assembly features

• Dismantling and assembly of the common-rail fuel supply system of the diesel engine of the D12 Euro III series

Troubleshooting

• Engine won't start
• Electrical circuit problems
• Lubrication system
• Fuel supply system
• Fuel injection advance angle
• Abnormal engine noise
• Abnormal noise from connecting rod bearing
• Abnormal main bearing shell noise
• Abnormal piston pin noise
• Abnormal camshaft sound
• Abnormal noise from the timing gears
• Abnormal noise from broken idler bearing
• Insufficient power, vibration and unstable engine operation, unusual sound from the exhaust pipe
• Knocking sound from the engine when it is running
• Abnormal camshaft sound
• Abnormal sound when the turbocharger is running
• Premature abrasion
• Engine oil pressure too low
• Oil and coolant mixture
• Insufficient engine power
• Fuel supply system problem
• Intake and exhaust system
• Crankshaft / connecting rod
• Fuel injection advance angle
• Malfunctions related to multiple vehicle systems
• Common Rail high pressure diesel engine
• High coolant temperature
• Cooling system circuit
• Other
• Cooling system overflow
• Cooling system
• Other
• Diesel in oil pan
• Injector
• Short fuel return pipe
• Injector retainer bolt
• Ejection of black smoke
• White smoke release
• Blue smoke release
• High engine oil consumption