Lesson 1Common heavy machine diesel setups (straight, V, turbocharged)Looks at usual heavy machine diesel arrangements and parts. Compares straight and V engines, turbocharged and natural breathing ones, and how setup affects fitting, service reach, and work.
Straight vs V engine buildTurbocharged vs natural dieselWet and dry sleeve block makingOverhead cam vs cam-in-block setupsPower strength and torque line featuresService reach and fitting worriesLesson 2Fuel system parts: tanks, filters, lift pumps, injection pumps, injectorsCovers diesel fuel keeping and sending from tank to injector. Explains part jobs, flow ways, pressure steps, and cleaning, plus usual wear, dirt problems, fixing checks, and safe service ways.
Tank design and air out in heavy machinesLift pumps and low-pressure fuel linesFilter kinds, levels, and water splitHigh-pressure injection pumps and controlInjector kinds, spray shapes, and wearFuel dirt causes and fixingLesson 3Oiling system: oil kinds, filters, oil paths, pressure systems, dirt signsCovers oiling system plan from bottom to bearings. Explains oil types, adds, filters, paths, and pressure watch, plus dirt sources, sampling, wear signs, and service times for heavy machines.
Engine oil types and service marksOil pump kinds and pressure watchMain paths, jets, and oil routesFilter stuff, bypass valves, and serviceDirt sources and oil samplingLow oil pressure and noise fixingLesson 4Air intake and turbo: filters, coolers, turbo fixingDetails air intake ways, cleaning, and turbo in heavy diesels. Covers filter kinds, air cooling, turbo parts, boost watch, failure signs, and step-by-step turbo fixing checks.
Air filter kinds, levels, and blockTurbo parts and wordsWastegates, VGTs, and boost watchCoolers and air leak testsTurbo failure signs and causesBoost pressure and air flow fixingLesson 5Usual failure ways and signs matching (smoke colours, smells, power loss, too hot)Links usual diesel failure ways to seen signs. Covers smoke colours, smells, noises, power drop, and too hot, teaching step checks to find causes before big open or test.
Black, blue, white smoke fixingFuel, oil, coolant smell signsPower loss under load fixingToo hot and coolant loss waysStrange engine noises and shakeBasic fault find flow plansLesson 6Engine sensors and controls: MAP/MAP-like, coolant temp, oil pressure, crank/cam spotLooks at key engine sensors and control plans on new diesels. Details MAP, temp, pressure, speed sensors, wire basics, ECM thinking, failure ways, and safe test and read sensor info.
MAP and boost pressure sensor workCoolant temp and fan control inputsOil pressure sense and safe thinkingCrank and cam spot sensor rulesECM plans for fuel and timeBasic sensor test with metersLesson 7Cooling system: radiators, coolant kinds, thermostats, water pumps, hosesExplains engine cooling system design and work. Covers coolant mix, radiators, thermostats, pumps, hoses, caps, plus bubble damage, electric damage, leak checks, too hot fixing, and keep practices.
Coolant kinds, adds, mix rulesRadiator build, flow, cleaningThermostats, bypass lines, testingWater pump design, drive, failuresHoses, clamps, pressure cap checksToo hot fixing and leak findLesson 8Diesel engine heat rules and four-step cycleIntroduces diesel heat rules and four-step cycle. Links squeeze start, air-fuel mix, heat move to torque out, good work, smoke out, and how work conditions affect engine work.
Squeeze start and diesel traitsIntake, squeeze, power, out stepsBurn time and pressure linesAir-fuel mix, mix make, smokeHeat move, good work, power outLoad, height, temp effectsLesson 9Exhaust and aftertreat basics: silencers, particle filters, DOC, sensors (if there)Introduces exhaust flow and aftertreat on new diesels. Explains silencers, DOCs, DPFs, sensors, regrow basics, plus back pressure problems, check points, safe hold of hot parts.
Exhaust route and back pressure effectsSilencer kinds and noise control waysDOC work and light conditionsDPF load, regrow, ashExhaust temp and pressure sensorsAftertreat fault signs overview
