Weichai WP12 (E40) Euro 4 engine owners and maintenance e-manual (in Russian)

Contents

General description of products

• Diesel power and speed
• Main design features of diesel engines
• Designation of diesel models of the WP12 series
• Appearance of diesel engines of the WP12 series

Technical and operating parameters of diesel engines

• Basic and technical parameters of diesel engines of the WP12 Euro IV series
• Main operational characteristics of diesel engines of the WP12 Euro IV series table

Diesel fuel, lubricating oils, coolants, urea solution and auxiliary materials

• Fuel
• Motor oil
• Lubricating tension rollers
• Engine cooling system antifreeze
• Urea solution
• Supporting materials

Operation and management of diesel engines

• Reactivation of diesel engines
• The rise of diesel engines
• Installation of diesel engines
• Preparing for launch
• Starting diesel engines
• Operation of diesel engines

Periodic inspection and maintenance of diesel engines

• Routine maintenance and care
• Maintenance work
• Maintenance and care of diesel engines during long-term storage
• Regular maintenance and drawing up a service report

Analysis and elimination of frequently recurring faults

• Diagnostic method
• Frequently recurring faults and their elimination

Engine specifications

• Power and speed
• Main design features of diesel engines
• Designation of series diesel models
• Appearance of diesel engines
• Main technical parameters
• Main performance characteristics
• Lubrication system
• Tightening torques
• Tool

Procedure for complete engine disassembly

• Removing the engine from the vehicle
• Disconnecting electrical wiring from the electronic control unit
• Removing the oil filter block and the oil drain pipe from the turbocharger
• Installing the engine on the assembly-disassembly stand
• Removing the fan
• Removing accessory drive belts and tensioning devices
• Removing the electronic control unit
• Removing the alternator
• Removing the drive pulleys and torsional vibration damper (damper)
• Removing the starter
• Removing the air conditioner compressor
• Removing moisture-oil separator
• Removing the Fan Support
• Removing the water pump and thermostat housing
• Removing the mountain brake flap
• Removing the turbocharger and exhaust manifold
• Removing the intake manifold
• Removing high pressure pipes
• Removing low pressure fuel lines
• Removing fuel filters
• Removing the fuel rail
• Removing the air compressor
• Removing the fuel pump
• Removing cylinder heads
• Removing engine harnesses
• Removing the water-oil heat exchanger
• Removing the oil pan
• Removing the flywheel and rear oil seal
• Removing the flywheel housing
• Removing drive gears
• Removing the camshaft and rear plate
• Removal Removing the front supports
• Removing the front cover and crankshaft seal
• Removing the oil pump
• Removing camshaft bushings
• Removing piston cooling nozzles
• Removing the connecting rod and piston group
• Removing the lower removing the lower lower plate and crankshaft

Disassembling engine components

• Cylinder block
• Disassembling the cylinder block
• Flushing the cylinder block
• Cylinder block control
• Cylinder block assembly
• Flywheel
• Disassembling the flywheel
• Flywheel assembly
• Crank mechanism
• Disassembling the connecting rod and piston group
• Inspection of crank mechanism parts
• Assembly of the connecting rod and piston group
• Crankshaft
• Camshaft
• Torsional vibration damper (damper)
• Exhaust manifold
• Disassembling the exhaust manifold
• Exhaust manifold assembly
• Air compressor
• Removing the air compressor gear
• Air compressor gear installation
• Cylinder head
• Disassembling the cylinder head
• Cleaning the cylinder head
• Checking the cylinder head
• Cylinder head assembly
• Lubrication system
• Cooling system
• Cleaning the water-oil heat exchanger oil heat exchanger
• Water pump
• Fan drive
• Fuel injection system
• Operating principle of the Common Rail system
• Technical characteristics of the elements of the Common Rail System
• Repair of the Common Rail System fuel system
• Fuel pump repair
• High pressure ramp

Engine assembly

• Installing the crankshaft
• Installation of connecting rod and piston group
• Installing the oil pump
• Installing the front cover and crankshaft oil seal
• Installing front engine mounts
• Installation of camshaft
• Installing the engine rear plate and drive gears
• Installing the flywheel housing
• Flywheel installation
• Installing the rear oil seal
• Installing the oil pan
• Installation of water-oil heat exchanger
• Installation of the fuel pump
• Air compressor installation
• Installation of pushers
• Installing engine harnesses
• Installing cylinder heads
• Adjusting valve clearance
• Installing valve covers
• Installation of ramp and high pressure pipes
• Installation of fuel filters
• Installation of low pressure fuel pipes
• Installing the intake manifold
• Installing the exhaust manifold and turbocharger
• Installation of the mountain brake flap
• Installing a water pump
• Installation of moisture-oil separator
• Installation of starter
• Installation of the air conditioning compressor
• Installation of torsional vibration damper (damper) and drive pulleys
• Generator installation
• Installation of the electronic control unit (ECU)
• Installation of accessory drive belts and tensioners
• Fan installation

Turbocharger

• Possible problems
• Control on the vehicle
• Disassembly and assembly of a turbocharger
• Causes of turbocharger problems

Engine diagnostics

• Description of the engine diagnostic device
• Device functions
• Equipment
• Technical characteristics of the device Launch X 431

Engine replacement

• Preparatory operations before removing the engine
• Lifting the engine
• Engine installation

Application

• Standard tightening torques for bolts and nuts
• List of special tools required for maintenance and repair of WP 12 series engines
• Circuit diagrams
• Sealants and lubricants used on diesel engines of the WP 12 series

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