Vehicle Diesel Engine Maintenance

Automotive Engineering Technology · Level 6  ·  4 Chapters

Compiled by: Samuel Munene

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What Vehicle Diesel Engine Maintenance covers

Vehicle Diesel Engine Maintenance in Automotive Engineering Technology Level 6 trains you to service diesel engines that overheat or lose oil pressure. It covers four jobs in order: overhauling the engine, servicing the cooling system, servicing the lubrication system and servicing the diesel fuel system. For the overhaul you classify the engine, diagnose faults, dismantle, inspect, replace worn parts, reassemble and check the re-installation. For cooling you work with system types, diagnosis, inspection, parts installation and testing. For lubrication you learn filtration methods, lubrication system types, inspection and operation tests. For the fuel system you study operation, diesel injection systems, inspection, component replacement and the fuel system service report.

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Careers after Vehicle Diesel Engine Maintenance

Working on diesel engines opens doors across Kenya’s bustling transport, construction, and power sectors. Whether you join an established garage or launch your own service, the skills you master here are in high demand from coastal resorts to the highlands.

  • Truck depots and haulage firms in Nakuru and Eldoret - you organise the workshop, follow strict safety checks, dismantle and re-assemble diesel power-units on long-haul trucks, charging per engine rebuild and earning overtime for night-shift emergencies.
  • Matatu and bus garages in Embakasi and Thika - you diagnose engine performance, service cooling and lubrication systems, and carry out tune-ups that keep commuter fleets on the road, receiving daily wages or contract fees for each serviced vehicle.
  • Diesel generator service centres in Nairobi’s Industrial Area - you inspect, clean and replace engine parts on standby generators for hospitals, schools and malls, preparing detailed service documents that justify billing for parts and labour.
  • Mining equipment workshops in Kitale and Kakamega - you work on heavy-duty diesel engines for excavators and haul trucks, applying manufacturer manuals to safely fit and test components, earning higher specialist rates for the demanding environment.
  • Agricultural machinery service stations in Eldoret and Kericho - you service diesel tractors and harvesters, diagnosing cooling and lubrication issues, and offering seasonal contracts to large farms that rely on timely engine maintenance for planting and harvesting cycles.
  • Mobile diesel-engine repair vans operating in rural counties such as Kitui and Kisumu - you travel to farms, small factories and remote clinics, performing on-site diagnostics, cleaning and part replacements, charging call-out fees plus markup on any parts you supply.
  • Vehicle inspection and road-worthiness centres in county towns - you prepare accurate engine service records, test cooling systems and verify that engines meet safety standards, earning per-inspection commissions and building a reputation for thorough documentation.
  • Fuel-station workshops along the Coast (Mombasa, Malindi) - you conduct quick engine tune-ups and cooling-system checks for tourist buses and cargo trucks, adding value to fuel sales and receiving service bonuses for each completed job.
  • Independent auto-repair shops in Nairobi’s Westlands or Karen - you set up your own workshop, organise tools and safety procedures, hire apprentices, and generate income from a mix of overhauls, routine maintenance, and custom diesel-engine solutions for private owners and small fleets.

Mastering these hands-on skills means you can keep Kenya’s diesel-powered world moving - on roads, farms, mines and power stations - while building a rewarding career or thriving business of your own. Keep the tools tidy, follow the manuals, and the opportunities will drive you forward.

Chapters

What Vehicle Diesel Engine Maintenance covers: 39 main topics in 4 chapters

1. Perform diesel engine overhaul

  1. 1.1 Work Area Organization and Safety Measures
  2. 1.2 Engine classification
  3. 1.3 Engine construction
  4. 1.4 Diesel Engine Diagnosis and remedies
  5. 1.5 Diesel Engine Overhaul tools, equipment and materials
  6. 1.6 Engine Dismantling
  7. 1.7 Engine parts inspection
  8. 1.8 Engine parts service/replacement
  9. 1.9 Engine parts assembly
  10. 1.10 Engine fitting and mounting
  11. 1.11 Re installation check

2. Service vehicle diesel engine cooling system

  1. 2.1 Work Area Organization and Safety Measures
  2. 2.2 Vehicle cooling system
  3. 2.3 Types of cooling system
  4. 2.4 Engine cooling system diagnosis and remedies
  5. 2.5 Cooling system tools, equipment and materials
  6. 2.6 Cooling system inspection
  7. 2.7 Engine cooling system service/replacement
  8. 2.8 Cooling system parts installation

3. Service vehicle diesel engine lubrication system

  1. 3.1 Work Area Organization and Safety Measures
  2. 3.2 Lubrication system
  3. 3.3 Filtration methods
  4. 3.4 Types of lubrication system
  5. 3.5 Engine lubrication system diagnosis and remedies
  6. 3.6 Engine Lubrication System Service Tools, Equipment and Materials
  7. 3.7 Engine lubrication system inspection
  8. 3.8 Engine lubrication system service/replacement
  9. 3.9 Lubrication system parts installation
  10. 3.10 Lubrication system operation tests

4. Service Vehicle engine diesel Fuel system

  1. 4.1 Work Area Organization and Safety Measures
  2. 4.2 Fuel system operation
  3. 4.3 Diesel injection systems
  4. 4.4 Fuel system service tools and equipment
  5. 4.5 Fuel system diagnosis and remedies
  6. 4.6 Fuel system inspection
  7. 4.7 Fuel system components service/replacement
  8. 4.8 Fuel system re installation checks
  9. 4.9 Fuel system service documentation
  10. 4.10 Overview of Fuel System Condition and Service Report

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Beyond the syllabus

Other units in Module II