Your channel is a gold mine, you explain things clearly and with detail. Thumps up!

The cool thing is you have mechanical direct injection as well. In my opinion its the best of two worlds. Easy to fix, hard to kill, efficient and powerful engines.

Indirect is great to start off I honestly have my heart with idi but direct is as u say more tunable but yes recently got a computer tbh it opens the field of easy diagnostics on a car, definitely is the future but long live the idi

modern injectors rely on batteries but the old system relies on their mechanical it's self so if your alternator fails the old system still running or EMP blast. but the modern design will fail because need the support of the battery and alternator, especially the ECU. but this channel thumb up a good and nice explanation.

Bang pop Wollop bing bang is the correct expression for Diesel engine.Good job.

Thanks last time I fail to differentiate​ btn this to injections in examination room, I don't regret cse those who fail become a star

Back in the mechanical injection days Mercedes used to do direct injection on commercial engines such as the old sprinter and indirect injection on the same version of car engines because the direct injection with its super high pressure made very loud scary diesel sounds at idle. Now with electronic injection the injectors open something like 7 times per combustion stroke whilst idling, so that diesely injector sound is almost gone, making direct injection good for cars.

During my forced vacation last year I decided to pull an old dead Diesel engine apart because I understand and work with gasoline/ spark ignition engines, but diesels are a bit of a mystery. I understood the basics of compression ignition, I spend a lot of time trying to prevent it in the engines I’ve built, but the injection systems, fuel timing events, lack of a throttle body just baffled me. And after taking that engine apart and seeing what made it work led me to the conclusion that diesels are built with the use of black magic and unicorn tears

Great video man ! Thanks for the explanation

Can you talk about indirect injection springs and how they work?

at 0:16 , because of the background music, all that i was thinking about was Dr. Phil saying 'narcissistic bitch' xD

I am looking at getting a diesel step van and converting it to veg oil. One option is a 2003 6.5L workhorse p42 and another is a 2002 24 valve cummins Freightliner M-line. So which would be better for veg oil? I saw you just say here around 6:30 that the indirect injection can run on anything so I'd guess the 6.5 since it's IDI.

Good vid , apart from the slurpin , haven't you heard of Misophonia ?

The old one looks very similar to my land rover one? Anyone know if it's the same part 🤔

Talking of fuel pumps, my 306 has been stuck in my drive since June. One day it turned over but the damp morning stopped it starting. After a few hours of strong sun it did start easily twice, but INSTANTLY cut out each time. So I am guessing a fuel starvation issue. What's the best place to start on a 306 2.0 XSi........fuel pump or something else......fuel pump relay?...........injectors? My battery is brand new and spark plugs seem ok. Just need a few ideas before I try get a garage involved, although getting car over to a garage could prove tricky.

Nice explains..love from India..

Great video. Very interesting. Thanks !

Thank you sir ,very Good explanation. But I wonder if you talked slower . I'm from Iran Good luck.

I feel that the IDI principle has potential yet. It's so simple and robust... I read about Ducted Fuel Injection which has the potential to drastically improve diesel emissions to almost nothing. From what I saw in the papers I read it seems to be for a modern common rail style diesel, but the principle was so simple. Like adding a bunsen burner nozzle on the injector to create better mixing or fuel and air. I wonder why could not that also be applied to the injector in an IDI engine, improved mixing would be just as helpful on an IDID, possibly more so?

So as far as tractor engines IDI - Kukje A2300N2 or CRDI - Yanmar 4TNV88CR in the 48 hp range... that is what I am trying to decide on... Comments appreciated

I've read IDI is better for veg oil. Any idea why? But also read people still using veg oil with DI.

idi = cracked cylinder head di= cracked pistons

hmm your explaining a commonrail vs distributor pump.. my engine is direct injected with a distributor pump. the engines with a distributor pump can be DI or IDI engines it have to do with the combustion chamber and not the pump design.

Does a direct gasoline injection system have the same negative effects on the intake valves as a direct diesel injection system? or are diesel systems working differently?

If cost of ownership is a factor di is not for you. If you're selling/trading your car in at less than 100k definitely get a di engine. Otherwise port injection is far more reliable.

Direct injection requires a better filtering sysytem?

You can get combination of indirect and direct injection with modern engines on common rail, this video is a bit misleading, getting different types of fuel pumps muddled up with different types of injection.

My teacher told me one btn of two has no glow plug I wonder Which one

Listening to you drink that coffee sounded disgusting

is the modern system better, yes, but its also way cheaper for manufacture, and here's why, old xud injectors were calibrated, shims under the injector spring set the amount of fuel sprayed out, so each and every injector had to be calibrated under real conditions? very time-consuming. also, the pistons of the pump had to match on pressure so that each cylinder had the same fuelling, once again, calibration time. now the modern system doesn't have this, with one pump supplying fuel, not 4 smaller single piston pumps, it's way easy to calibrate if at all, it just needs to be 'in the ballpark', as for the injectors, no need to do any 'real' calibration on those either, just measure the flow, and stamp that on the injector, then when fitted in the vehicle, tell the ecu that injectors flow rate, and let the ecu do the math to change its injection time to to match, say if injector A has +10% more flow, then reduce its injection time by 10%, bingo. this saves a huge amount on manufacturing costs, which they don't pass on to us but pocket, and then they get double bubble as now a replacement injector needs its flow rate programmed in the ecu which they can charge for!

So it's a IDI Vs CRDI...!

This video is worthless, you've just compared two types of direct injection (even though you are using indirect injectors), one based on distribution pump (as in 90s TDI engines) and second base on continous pump (aka common rail).