මගතොටදී මේ සිදුවීම දැක්කොත් ලගට යන්න එපා ! Diesel Engine Runaway !

A runaway diesel engine ( Ober run) is a phenomenon where a diesel engine begins to rev uncontrollably, surpassing its designed RPM limits. This usually happens when the engine starts consuming fuel from an unintended source, such as built-up engine oil or external hydrocarbons. Unlike petrol engines, diesel engines do not rely on spark ignition; they compile air to high pressures and temperatures, igniting the fuel injected into the combustion chamber. Therefore, when a diesel engine starts running on an unintended fuel source, regular controls like throttle or ignition shut-off become ineffective in stopping the engine.
Diesel engine overrun, also known as "diesel runaway," is a dangerous condition where a diesel engine continues to run uncontrollably and at increasing speeds, even when the ignition is turned off and the fuel supply is cut off. This situation can lead to severe engine damage or even catastrophic failure.
Causes of Diesel Engine Overrun
1. **External Fuel Sources**:
- **Oil Leaks**: Engine oil entering the combustion chamber due to turbocharger seals, valve seals, or piston rings failing. The oil acts as an uncontrolled fuel source.
- **Fuel Contaminants**: Substances such as hydraulic fluid or oil mist in the intake air can cause overrunning.
2. **Internal Issues**:
- **Blown Head Gasket**: Allows oil to enter the combustion chamber.
- **Faulty Injection System**: A malfunctioning fuel injection system that continues to deliver fuel uncontrollably.
3. **Environmental Factors**:
- **Fumes**: In environments with flammable fumes or vapors (e.g., certain industrial settings), these fumes can be ingested by the engine and cause overrunning.
Symptoms of Diesel Engine Overrun
- **Uncontrollable RPM Increase**: The engine speed increases rapidly and uncontrollably.
- **Excessive Smoke**: Thick, black or blue smoke from the exhaust, indicating burning oil.
- **Loss of Control**: Standard methods of stopping the engine, such as turning off the ignition, become ineffective.
Risks and Consequences
- **Severe Engine Damage**: Overrun can cause extreme stress on engine components, leading to failure of pistons, connecting rods, and crankshaft.
- **Explosion Risk**: High RPM can lead to engine components breaking apart explosively.
- **Safety Hazard**: The runaway engine can create hazardous conditions, particularly if the vehicle is in motion.
Prevention and Response
**Prevention**:
- **Regular Maintenance**: Regular checks and maintenance of seals, gaskets, turbochargers, and the fuel system.
- **Monitoring**: Using sensors and monitoring systems to detect early signs of oil leaks or fuel system
While not exceedingly common, the issue of runaway diesel engines poses a significant risk due to the potential for engine damage, safety hazards, and operational downtime. In severe cases, a runaway engine can lead to catastrophic engine failure, posing safety risks to operators and bystanders. It is particularly prevalent in older engines or those not adequately maintained. The severity of the situation necessitates a clear understanding of the causes, signs, and preventive measures, which is vital for operators and mechanics working with diesel engines. This guide provides a comprehensive overview of runaway diesel engines, their causes, and practical solutions to mitigate their associated risks.
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[@kushansathsara5181]

Mrj ඉස්සල්ලම.බලන්කොට සබ්ස්ක්‍රයිබ් 2000ක් වගේ තිබුනේ.. සන්තෝසයි අයියේ..හැමදේම තිතට කියලා දෙන මම දන්න එකම කෙනා ❤

[@jagathegodawattha5826]

ලක්ශ තුනට මාත් අයිතියි.මිලියනයක් අනිවාර්යයි...ඔයාට සුබ පැතුම්...!

[@aruna4736]

Mrj මුල්කාලෙ ඉදන්ම බැලුව.දැන් 300k congratulations

[@nimalkumara5675]

ජයවේවා MRJ❤❤❤❤
බුදු සරණයි 🙏

[@iroshansuranji1144]

අතුරුගිරිය හයිවේ එක ළඟ පාලම උඩදි දැනට අවුරුදු 6 කට විතර කලින් මට ඔය දේ සිද්ධ උනා,, ස්වීච් ඕෆ් කළා,, බැට්‍රි ටර්මින්ල් ගැලෙව්ව මොනව කලත් හරි ගියේ නෑ අන්තිමට හැමදේම කරල නවතින්නැති නිසා වාහනේට ආයිත් නැගල 4 වෙනි ගියර් එකට දාල ක්ලච් එක දුන්න,, ඒත් පිකප් වැඩි නිසා තවත් තත්පර 2 කින් විතර වාහනේ ඉස්සරහට පැනල වගෙ වෙලා නතර උනා,, නැත්නම් ඒ දවස්වල එන්ජිම හදන්න ලක්ෂ 4 ක් විතර තව පොඩ්ඩෙන් ඉවරයි.

[@MRJInspire]

ඒක තමා ඔයින් ගියා ඇති

[@nipuntharuka9981]

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[@ThilakshanaDissanayake2887]

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[@PopQqpp]

ඔබතුමා රටට ලොකු සේවයක් කරන්නේ ඇත්තටම මෙි කරැණු පුධාන මාධ්‍ය වල සාකච්ඡා කලයුතු දේවල් නිහඩ සේවයට බොහෝම ස්තුතියි

[@erandadliyanage3878]

ගොඩාක් වටිනවා.❤ 300k ජයවේවා

[@chamindasampath90]

Great thanks for the explanation MRJ❤🤙I like mostly to the diesel engines. මේ ගැන ඇත්තටම දැන ගන්න ඕන වෙලා තිබුණේ..

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MRJ ලොක්කා❤
ජයවේවා 🙏🙏

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සුපිරි අයියේ ජය වේවා ඔයා පොඩියට videos දාපුකාලේ ඉදලම මං බලනවා ..❤❤❤

[@amperera2409]

Keep going. All of valuable tropics. 🎉 congratulations for 300k.

[@adithyapiyumajith2663]

300k subapathum

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සුබපැතුම් malli 300k 🎉🎉🎉🎉

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Congratulations on fulfilling 300k subscribers, Good luck brother

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සුබ පැතුම් සහෝදරයා ❤️❤️❤️
වටින විඩියෝ එකක්❤️❤️

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Congratulations for 300K Subscribers 💖

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Supiri aa,issar idanm videos balanne ❤

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සුපිරියක් අයියෙ ජයවේවා ❤️🥰💐💐💐

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300k congrats ❤️

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Thank you Ravindra for your valued advises 👍

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Congratulations on reaching 300k subscribers! Your sincerity and genuine approach in your videos set you apart from others who just talk without providing proper technical details. Many of these individuals make assumptions or talk complete rubbish. It's your commitment to delivering quality content that's gaining you popularity day by day.
Are there any prior signs which we can detect before this happens? Do we need to keep a turbo intercooler diesel idling for about 05 minutes before shutting down after a long trip? Thanks.

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❤

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300k සුබපැතුම් ❤❤🎉🎉

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Congratulations for 300k🎉❤

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Congratulations for 300k ❤

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Congratulations for 300k 💜️

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❤ නියමයි ඔක්කෝම කියනවා වැදගත් අයට වටිනවා❤

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Congratulations for 300k💜

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Congratulations for 300K

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Congratulations🎊 for 300k subscribe ❤

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බොහොම ස්තුතියි දැනුවත් කිරීමට ❤

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Engine 1 over lord කරලා නවත්තන්න බැරිද

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congratulations for 300K

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Congratulations අයියේ

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ජය වේවා ...!!!! ඔහොම යමු ඔහොම යමු,..!!!😍😍😍😍

[@thuppahigedonsujeewapushpa2090]

ජයවේවා සහෝදරයා !❤❤❤❤❤❤❤❤❤❤❤❤

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Congratulations 300k subscriber 😊👏

[@AselaDinesh-er1kf]

Congratulations Aiya............. 👍👍👍

[@MalinduJayakodi]

මාර වටින උපදෙස් ටිකක්

[@nzsandaruwan95]

දවසක් පේරාදෙනියෙදී හම්බුනා අය්යේ. වයිෆ් පෙන්නුවේ ඔයාව. GN Bike එකේ. මතක් වෙයී. ජය වේවා!!

[@MRJInspire]

💗

[@godx77gaming3]

20K idan balanne brother Congratulations for 300K 😍

[@dahanayakeyapa2646]

Thank you good explanation

[@RanjithDharmadasa-ep1bz]

ජය වේවා..තෙරුවන් සරනයි ..❤

[@ThiranjayaSamudika-ki9yn]

300k congratulations ❤ ගොඩක් දේවල් මම අයියගෙන් ඉගෙන ගත්තා

[@thiwankahasaranga2003]

Congratulations Brother 💖

[@dulanharshana3938]

Congratulations for 300k

[@rasadunamakara8899]

Great explanation ❤

[@supunsithoshadha7635]

congratulations aiye ❤

[@udayakumar5420]

Super explain ayya thanks alot

[@chamaragraphics7061]

300k congratulations

[@kaveendevmika2928]

Congratulations Brother 😍🎉

[@jayantharathnayake8371]

300k jaya wewa MRJ 😀😀😀😍😍

[@Prabu_Tech_SL]

300k subscribe congratulations

[@oshanvlogs7861]

Congratulations MRJ
to 300k ❤

[@Thesachenshow]

Congratulations ❤
Box Prado review ekak ona 😊

[@dineshadhammika7622]

ස්තුතියි..

[@user-hc8qx4to6q]

Super advice aiya.

[@RadoFlakka]

Congratulations Brother.!

[@asangaperera]

Great work🙏

[@wdgodfrey8895]

Thank you very much SIR

[@JakeFellman44]

Congratulations for 300K Subscribers❤🎉

[@ChamodWeedagama]

Congratulations ayya ❤

[@roggameryt]

Nice explanation..😊

[@arunaprasad3030]

Congratulations brother👍

[@bawanthathennakoon3662]

වීඩියෝ එකක් ඕනි,
වාහනයක interior, chassis, paints, engine condition හොඳටම තියාගන්න කාලාන්තරයක් පවත්වාගන්න නම්; නම්, regularly කළයුතු දේවල් සහ නොකළයුතු දේවල් ගැන.

[@JakeFellman44]

ගොඩක් වැදගත් වෙනවා❤

[@JayangaKariyawasam]

Congratulations aiya❤

[@hiranthaliyanage8482]

Congratulations brother 🎉👏

[@jayanthahappuarachchi8996]

ජයෙන් ජයම වේවා ❤