Lesson 1Common diesel setups in heavy machines (straight line, V-type, turbo boosted)Looks over usual diesel engine arrangements and parts in heavy gear. Compares straight line and V engines, turbo boosted and natural breathing ones, and how setup impacts fitting, service reach, and work.
Straight line vs V engine buildTurbo boosted 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 gearLift pumps and low pressure fuel linesFilter kinds, levels, and water splitHigh pressure injection pumps and controlInjector kinds, spray shapes, and wearFuel dirt reasons and fixingLesson 3Oiling system: oil kinds, filters, oil paths, pressure systems, dirt signsCovers oiling system plan from bottom to bearings. Explains oil levels, extras, filters, paths, and pressure watch, plus dirt sources, sampling, wear signs, and service times for heavy gear.
Engine oil levels 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 boosting: filters, coolers, turbo fixingDetails air intake routes, cleaning, and turbo boosting 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 wordsWaste gates, VGTs, and boost watchCoolers and air leak testingTurbo failure signs and root reasonsBoost pressure and air flow fixingLesson 5Usual failure ways and sign matching (smoke colors, smells, power loss, too hot)Links usual diesel failure ways to seen signs. Covers smoke colors, smells, noises, power drop, and too hot, teaching step checks to narrow reasons before big take apart or testing.
Black, blue, white smoke fixingFuel, oil, coolant smell signsPower loss under load troubleToo hot and coolant loss waysStrange engine noises and shakeBasic fault find flow chartsLesson 6Engine sensors and controls: 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 how to test and read sensor info safe.
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 timingBasic 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 up ways.
Coolant kinds, extras, 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 stroke cycleIntroduces diesel heat rules and four stroke cycle. Links squeeze start, air fuel mix, heat move to torque out, work good, smoke out, and how work conditions hit engine work.
Squeeze start and diesel traitsIntake, squeeze, power, exhaust strokesBurn phase and pressure linesAir fuel mix, mix make, smokeHeat move, work good, power outHits of load, height, tempLesson 9Exhaust and after care basics: mufflers, particle filters, DOC, sensors if thereIntroduces exhaust flow and after care on new diesels. Explains mufflers, DOCs, DPFs, sensors, regrow basics, plus back pressure problems, check points, safe hold of hot parts.
Exhaust route and back pressure hitsMuffler kinds and noise control waysDOC job and light off conditionsDPF load, regrow, ashExhaust temp and pressure sensorsAfter care fault sign over view
