Engine JAC 4DA1 (JAC HFC 1042), repair e-manual
About the manual
Engine type: JAC 4DA1 SERIES
In the manual you will find
- Step-by-step guide to repair various components and assemblies
- Self-care and maintenance instructions
- Engine design and prevention information
- Information for a trip to the service station, if self-repair is not possible
About the manual
Engine type: JAC 4DA1 SERIES
In the manual you will find
- Step-by-step guide to repair various components and assemblies
- Self-care and maintenance instructions
- Engine design and prevention information
- Information for a trip to the service station, if self-repair is not possible
Content
Introduction
Maintenance
- Diagnosis and troubleshooting
- Start problems
- Unstable idle speed
- Insufficient power
- High fuel consumption
- High oil consumption
- Engine overheating
- White smoke coming out of engine exhaust
- Black smoke coming out of engine exhaust
- Low oil pressure
- Abnormal engine noise
- Engine cooling problem
- Data and specifications
- Engine cooling
- Starting system
- Charging system
- Maintenance standards
- Engine mechanical system
- General terms for diesel performance
- Maintenance work
- Air filter
- Lubricant system
- Fuel system
- Cooling system
- Drive belt adjustment
- Engine control (governed speed, valve clearance, injection timing, compression pressure)
- Tightening torque
- Torque for cylinder head, cylinder head cover and rocker shaft support
- Torque for crankshaft, bearing cap, connecting rod bearing cap, crankshaft damper pulley, flywheel and oil pan
- Torque for timing pulley chamber, timing pulley, timing gear and camshaft race
- Engine fuel system
- Torque for cooling system and lubricant system
- Torque for intake manifold, exhaust manifold and exhaust pipe
- Engine electrical system
- Torque for engine mounting bracket.
- Special tools
Engine mechanical system
- Cylinder head
- Valve spring, valve guide oil seal, valve guide and push rod
- Camshaft and tappet
- Rocker arm assembly
- Oil pump
- Crankshaft
- Piston and connecting rod
- Cylinder block
DA1 Series engine
- General
- Right support of engine
- Left support of engine
- Air-intake manifold
- Exhaust manifold
- Oil cooler
- Cylinder head cover
- Rocker shaft assembly
- Valve stem oil seal and valve spring
- Timing gear
- Cylinder head assembly and gasket
- Oil pan
- Oil pump assembly
- Piston, piston ring and connecting rod
- Camshaft and tappet
- Crankshaft front oil seal
- Crankshaft rear oil seal
- Crankshaft and main bearing
Engine cooling system
- General
- Water pump
- On-vehicle repair
- Single-piece repair
- Thermostat
- Radiator
- Drive belt adjustment
Fuel system
- General
- Fuel filter assembly
- Fuel injector
- Injection pump assembly
- Fuel system related parameters
- Fuel tank
- Fuel lever gauge
Starting system
- General
- Starting circuit
- Starter motor
Intake / exhaust system
- General
- Air filter
- Exhaust pipe and charger assembly