Load test of a 12-645E engine after a complete overhaul
Пікірлер: 21
@scottk67324 жыл бұрын
Should be a lot more oil flowing than that.
@cat_with_sunglass2 жыл бұрын
you are right, looks like they drain all the oil from the valve train right before starting the engine
@pootispiker28668 ай бұрын
Armchair mechanics
@scottk67328 ай бұрын
Who?
@pootispiker28668 ай бұрын
@@scottk6732 you
@sambhasivamjagadishan95636 жыл бұрын
Vary excellent video and performing self load test. But in the eight notch hariable sound. We protect safety device for ears. Other vice ear drums are damage. Few locomotives of two stroke of E. M. D. Load test I may observed. Now I am retired my service. O. K vary nice. And my best wishes to you.
@KurtBenning4 жыл бұрын
I would love to buy that engine
@bonkeydollocks18794 жыл бұрын
Jagshemash I like very much this time pictures moving 😷💀👍🏾
@6.4DieselDoctor6 жыл бұрын
I was about to be worried until I seen oil finally getting to the valvetrain
@rolomaticz50096 жыл бұрын
These engines have an electrical pre-oiler pump to force oil up into the valve-train like aircraft and marine engines would have. You will hear the pre-oiler pump run for about 20-30 seconds if you watch a full cold startup, right before the decompression condensation blow out valve opening and closing procedure. The engine won't even blow out or auto crank up start until the pre-oiler pump has hit engine oil operating pressure of about 90 PSI.
@pootispiker28668 ай бұрын
In rail locomotives, which this engine is fitted to, the engines are not pre-lubed unless they are fitted with an electric pump. That's extremely uncommon except on railroads that run their equipment infrequently enough that completely dry starts are a concern. The fuel pump will indeed run for 20 seconds or so, but once the engine lights off the oil pressure guage can be at zero for a maximum of 45 seconds before the mechanical governor shuts the engine down. It's not uncommon to wait around 10-20 seconds for oil pressure to start building at all. This idea that the idea of some oil pressure switch preventing cranking is just something you pulled right out of your as s. No such thing happens in locomotives at all, with the ONLY exception being a soakback pump for turbochargers on engines so equipped. You can blow down without even turning the engine start switch to prime, but it's bad for the injectors. Autostarts also don't run pre-lube on older EMDs as the engine has oil in the block already. Also, oil pressure is generally 20-30 at idle, not 90 you freakin clown. People really oughta read a single sentence of information before they just straight up make shiт up.
@dieseltrainfreek6 жыл бұрын
no prelube OMG :(
@billmoran38123 жыл бұрын
Locomotive engines are not equipped with prelube.
@pootispiker28668 ай бұрын
Wait until you see how long these engines take to make oil pressure in the field
@dieseltrainfreek8 ай бұрын
Oh yes has seen it in -20deg.C cold engine sitting for weeks ,scary@@pootispiker2866
@srivenkatvidyasubramanian63485 жыл бұрын
This happens to EMD GT 22 CW engine with 12N-645E3 prime mover...
@srivenkatvidyasubramanian63484 жыл бұрын
@TrainSpotter Leo Yes. GT 22 has only 12 cyls. GT 26 has 16 cyls.
@slv777darshan4 жыл бұрын
@TrainSpotter Leo He must haven't known things... If you have doubts on EMD and GE, ask me, I will answer your queries. - By Jishnukrishna V of Class VIII, Navkis Educational Center, Gokula, Mathikere, Bangaluru (India)
@billdozer_68402 жыл бұрын
All of that work just not to prelube it? Poor engine
@pootispiker28668 ай бұрын
These engines are never prelubed in rail service unless the railroad adds a prelube pump
@billdozer_68408 ай бұрын
@@pootispiker2866 I just learned that a few months ago. Its very strange