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Diesel Engine Course

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Automobile Mechanics

Diesel Engine Course

For all levels

Diesel Engine Course

Name: Diesel Engine Course
Price: 54000 NGN

Get the practical diesel knowledge that shops actually hire for. This course covers everything from fuel injection and turbocharging to full engine overhauls and electronic diagnostics. Whether you are starting out or leveling up, you will build the skills to tackle real diesel engines with confidence.

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What you will learn:

You will learn how diesel engines are built, how they operate, and how to fix them when they do not. The course covers fuel systems, lubrication, cooling, air intake, and exhaust from the ground up. You will work through electronic engine controls, scan tool diagnostics, and fault code analysis. Engine overhaul procedures teach you how to measure components, identify wear, and reassemble to specification. Emissions systems including DPF, SCR, and EGR are covered in full detail. By the end, you will be able to diagnose complex faults and perform professional-level diesel service.

How you study in practice Diesel Engine Course

How you practise Diesel Engine Course

For companies looking to train their team

With Dedika for businesses, the course includes exercises and examples tailored to your own business and the specific needs of your company.

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Course content

8 Chapters • 40 LessonsDuration between 4 and 360 hours (you decide)

Chapter 1See details

Diesel Engine Fundamentals and Theory

Lesson 1 • Diesel Combustion Principles
Explains compression-ignition combustion and how heat of compression ignites fuel. Connects thermodynamic theory to practical engine behaviour.
Lesson 2 • Major Engine Components Overview
Introduces the block, head, crankshaft, camshaft, and valvetrain as an integrated system. Builds vocabulary needed for all subsequent technical chapters.
Lesson 3 • History and Applications of Diesel Engines
Traces diesel engine development from Rudolf Diesel's invention to modern industrial use. Provides context for why diesel technology dominates heavy-duty applications.
Lesson 4 • The Four-Stroke Diesel Cycle
Details intake, compression, power, and exhaust strokes in sequence. Students trace energy conversion from fuel to mechanical output.
Lesson 5 • Engine Configuration and Layout
Covers inline, V-type, and opposed-piston configurations and their trade-offs. Prepares students to identify engine families encountered in the field.

Chapter 2See details

Engine Components and Materials

Lesson 1 • Crankshaft Design and Bearings
Analyses crankshaft geometry, counterbalance weights, and journal bearing operation. Students interpret bearing clearance specifications and identify fatigue cracks.
Lesson 2 • Gaskets, Seals, and Fasteners
Explains sealing material selection, torque-to-yield fasteners, and thread repair methods. Proper fastener procedure prevents the most common reassembly failures.
Lesson 3 • Pistons, Rings, and Connecting Rods
Covers piston crown geometry, ring groove function, and rod bearing design. Students link piston design choices to combustion efficiency and durability.
Lesson 4 • Cylinder Block and Liner Systems
Examines block casting materials, wet and dry liner designs, and coolant sealing. Students assess liner wear patterns and select correct replacement types.
Lesson 5 • Cylinder Head and Valvetrain Components
Details head casting, valve seat inserts, guides, and rocker arm geometry. Students measure valve recession and assess head gasket sealing surfaces.

Chapter 3See details

Diesel Fuel Systems

Lesson 1 • Injector Nozzle Design and Testing
Details nozzle types, spray patterns, and opening pressure specifications. Students test nozzles on a pop tester and interpret spray quality results.
Lesson 2 • Unit Injector and Common Rail Systems
Compares unit injector architecture with high-pressure common rail design and pressure control. Students trace fuel flow and identify pressure-related fault codes.
Lesson 3 • Mechanical Injection Pump Systems
Explains inline and distributor pump operation, governor types, and timing advance mechanisms. Students adjust governor settings and set static injection timing.
Lesson 4 • Fuel Supply and Filtration
Covers fuel tank design, lift pump operation, primary and secondary filtration, and water separation. Clean fuel delivery is the prerequisite for all injection system performance.
Lesson 5 • Injection Timing and Calibration
Covers static and dynamic timing methods, timing light use, and electronic timing control. Correct timing directly affects power output, fuel economy, and emissions.

Chapter 4See details

Lubrication and Cooling Systems

Lesson 1 • Diagnosing Lubrication and Cooling Faults
Applies pressure testing, temperature mapping, and visual inspection to locate system failures. Students complete a structured diagnostic worksheet for each fault type.
Lesson 2 • Coolant Chemistry and Maintenance
Details coolant types, inhibitor depletion, and cavitation erosion of liners. Students test coolant concentration and inhibitor levels with field instruments.
Lesson 3 • Engine Lubrication Circuit Design
Maps oil flow from sump through pump, filter, galleries, and bearings. Students trace the full circuit and identify pressure drop locations.
Lesson 4 • Oil Properties and Analysis
Explains viscosity grades, additive packages, and oil degradation mechanisms. Students interpret used-oil analysis reports to predict component wear trends.
Lesson 5 • Cooling System Components and Flow
Covers water pump, thermostat, radiator, and coolant flow path through the block and head. Students identify flow restrictions causing overheating.

Chapter 5See details

Air Intake and Exhaust Systems

Lesson 1 • Charge Air Cooling Systems
Details air-to-air and air-to-water intercooler designs and their effect on charge density. Students measure intercooler pressure drop and assess core condition.
Lesson 2 • Exhaust Manifold and Back Pressure
Covers manifold casting design, gasket sealing, and the effect of back pressure on engine performance. Students measure exhaust back pressure with a manometer.
Lesson 3 • Turbocharger Principles and Components
Explains turbine and compressor wheel aerodynamics, bearing systems, and oil supply requirements. Students identify turbocharger failure modes from physical inspection.
Lesson 4 • Air Filtration and Intake Design
Covers dry-element and oil-bath filter types, restriction indicators, and intake manifold design. Proper filtration prevents abrasive wear that shortens engine life.
Lesson 5 • Turbocharger Diagnosis and Testing
Applies boost pressure testing, shaft play measurement, and oil contamination analysis to diagnose turbocharger faults. Students complete a turbocharger inspection checklist.

Chapter 6See details

Engine Electrical and Electronic Controls

Lesson 1 • Scan Tool Diagnostics and Fault Codes
Applies scan tool data logging, fault code retrieval, and actuator testing to electronic engine faults. Students follow a structured diagnostic tree to resolve active codes.
Lesson 2 • Starting System Components and Operation
Covers starter motor types, solenoid operation, and cranking circuit wiring. Students test cranking voltage drop and identify high-resistance faults.
Lesson 3 • Charging System and Battery Management
Explains alternator output regulation, battery state of charge, and dual-battery configurations. Students perform charging system output tests under load.
Lesson 4 • Sensors and Actuators in Diesel Management
Covers crankshaft position, camshaft, MAP, coolant, and fuel pressure sensors and their signal characteristics. Students test sensor output with a multimeter and oscilloscope.
Lesson 5 • Engine Control Module Architecture
Details ECM inputs, outputs, and communication networks used in modern diesel engines. Students map sensor signals to ECM control decisions.

Chapter 7See details

Engine Overhaul and Rebuild Procedures

Lesson 1 • Precision Measurement and Inspection
Applies micrometers, bore gauges, and plastigage to verify component dimensions against specifications. Students record all measurements on a standardised inspection sheet.
Lesson 2 • Engine Disassembly Sequence
Follows a systematic top-down disassembly order to prevent component damage and contamination. Students practise safe lifting, component handling, and cleanliness standards.
Lesson 3 • Component Reconditioning Decisions
Guides reuse, repair, or replacement decisions based on measured wear and cost analysis. Students apply manufacturer wear limits to make defensible reconditioning choices.
Lesson 4 • Pre-Disassembly Inspection and Documentation
Establishes condition assessment, photographic documentation, and parts identification before teardown. Thorough pre-disassembly records prevent reassembly errors.
Lesson 5 • Engine Reassembly and Break-In
Covers assembly lubrication, torque sequences, and controlled break-in procedures to seat rings and bearings. Students verify oil pressure and check for leaks during initial run.

Chapter 8See details

Advanced Diagnostics and Performance Optimisation

Lesson 1 • Compression and Mechanical Efficiency
Applies compression testing, cylinder leak-down, and running compression analysis to locate mechanical losses. Students rank cylinders by efficiency and recommend corrective action.
Lesson 2 • Systematic Diagnostic Methodology
Establishes a structured six-step diagnostic process from symptom verification to repair confirmation. Students apply the process to multi-system fault scenarios.
Lesson 3 • Fuel System Performance Diagnosis
Diagnoses injector balance faults, rail pressure deviation, and pump delivery shortfalls using scan data and flow testing. Students correlate fuel system data with power loss symptoms.
Lesson 4 • Performance Testing and Benchmarking
Uses dynamometer testing, fuel consumption measurement, and smoke opacity analysis to quantify engine performance. Students compare results against factory specifications.
Lesson 5 • Engine Calibration and Tuning Principles
Introduces ECM parameter adjustment, injection map modification, and emissions compliance verification. Students evaluate tuning trade-offs between power, economy, and emissions.

Certification

Your valid completion certificate

This course is for you:

Aspiring diesel technician: wants structured training before entering the trade.
General mechanic: ready to expand into heavy-duty diesel equipment service.
Fleet maintenance worker: needs deeper diagnostic skills for on-site repairs.
Agriculture equipment operator: maintains diesel-powered machinery on working farms.
Career changer: switching industries and targeting diesel as a skilled trade.
Vocational student: supplementing classroom instruction with comprehensive technical content.

What our students say

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