Video on how ICE works

[FlyPenFly]

I informally knew different bits and pieces but I thought this video was really approachable on how everything kind of works together.

 

[dnewton3]

Allow me to nit-pick several things I find to make this video not worthy of BITOG attention:

At min mark 0:37 he calls the con-rod bearing the "crankshaft bearing". And we can't accept that it's a mistake, because not only did he verbally speak the error, but they also printed the error in the screen overlay ... Perhaps it's unfair to criticize such a small error, but then again, it's YT and I believe that if you're gonna make a video portraying yourself as an expert, you ought to know better and relay the correct info.

At min mark 4:50, he talks about the oil pump. Yes - in this engine, it does go on the front of the crank. But that's not true of other designs, and he's going to lead the uninformed to believe that ALL pumps are on the front of the crank.

At min 4:55 he states that the oil filter catches "any contaminants" ... yeah - we all know that filters are not 100% efficient at all particle sizes.

Towards the end he speaks of the "crankshaft position sensor" and yet they are pointing to the head (and likely the camshaft position sensor). Then shortly after that he speaks about the "cylinder position sensor" ... What? What in the world is a "cylinder position sensor"? Do cylinders move around in the engine and need to be located by a sensor? And again, this mistake is not just spoken, but printed on the screen.

He says the "manifold absolute pressure sensor lets the ECU know how much air is getting to the cylinders". But that's incorrect. The MAP informs the ECU about the PRESSURE in the intake tract, and then the ECU determines the airflow via a precalculated map. The MAP does not inform the ECU about air volume; it only informs the state of pressure. And of course, this is not applicable if your engine uses MAF (which is much more common today as it's more accurate).


A valiant effort to summarize stuff, but he can do as much harm as good, because he's improperly stating some things.
To a noob, this may seem helpful.
To me, it's just typical YT minutia aimed at monetizing his channel and not worth a BITOGer's time.

 

[TiGeo]

Allow me to nit-pick several things I find to make this video not worthy of BITOG attention:

At min mark 0:37 he calls the con-rod bearing the "crankshaft bearing". And we can't accept that it's a mistake, because not only did he verbally speak the error, but they also printed the error in the screen overlay ... Perhaps it's unfair to criticize such a small error, but then again, it's YT and I believe that if you're gonna make a video portraying yourself as an expert, you ought to know better and relay the correct info.

At min mark 4:50, he talks about the oil pump. Yes - in this engine, it does go on the front of the crank. But that's not true of other designs, and he's going to lead the uninformed to believe that ALL pumps are on the front of the crank.

At min 4:55 he states that the oil filter catches "any contaminants" ... yeah - we all know that filters are not 100% efficient at all particle sizes.

Towards the end he speaks of the "crankshaft position sensor" and yet they are pointing to the head (and likely the camshaft position sensor). Then shortly after that he speaks about the "cylinder position sensor" ... What? What in the world is a "cylinder position sensor"? Do cylinders move around in the engine and need to be located by a sensor? And again, this mistake is not just spoken, but printed on the screen.

He says the "manifold absolute pressure sensor lets the ECU know how much air is getting to the cylinders". But that's incorrect. The MAP informs the ECU about the PRESSURE in the intake tract, and then the ECU determines the airflow via a precalculated map. The MAP does not inform the ECU about air volume; it only informs the state of pressure. And of course, this is not applicable if your engine uses MAF (which is much more common today as it's more accurate).


A valiant effort to summarize stuff, but he can do as much harm as good, because he's improperly stating some things.
To a noob, this may seem helpful.
To me, it's just typical YT minutia aimed at monetizing his channel and not worth a BITOGer's time.

These engines do in fact have cylinder position sensors.

 

[dnewton3]

I stand corrected ... on one point.

A stupid point, because cylinders don't move ... cylinders do not change position; pistons and crankshafts do. But that's not his fault, apparently.

Q: What does this sensor really do? Does it track the crank? Sure looks like it's on the front of the crank in that diagram. Would it not be more appropriately called something else? Say something like, oh, the crankshaft position sensor; like what the rest of the world would call it?


Again - I'm wrong on that one point. And the rest?

 

[TiGeo]

And the rest?

Strange pedanticism. It's a good video.

 

[dnewton3]

Strange pedanticism. It's a good video.

Isn't the point of BITOG to be, in some manner, pedantic? BITOG isn't geared towards the average Joe; it's really more for those who want to discuss the nuances of all things related to lubes, mechanical issues, etc, with high accuracy.

As I already said, the video is a good summary of the general operation of an engine. I agree with that. The average Joe would perhaps learn some basic concepts and terms (though some of the terms in the video may be a bit misleading).

BUT ... This is BITOG. That video is fair game to be scrutinized at a higher level; a more thorough critical analysis of its information. In that manner, it fails on a few points. Had the OP shared this video on FB to his buddies, none of us would/should care. But he dropped it here as some form of golden nugget he discovered, and frankly it's beneath the BITOG expectations of accuracy. To claim it's a "good video" is OK, but that statement is undefined as to what audience it would best serve. For common folks unknowing of an engine, it's ok. But for technical discussions (those more likely to take place on BITOG), it's inaccurate and misleading on several points.

So, yeah, I'm on BITOG to talk about engines and lubes in accurate detail. If that makes me "pedantic" then so be it.

 

[KrisZ]

I watched 30 seconds of it and can’t find the mental power to watch the rest. Not after his claim that after watching his video I will know every single part of an engine.

 

[radiometer]

I started listening to it, but quickly ended my time with it. I saw that it was a bit offtrack and went to other matters. This is BITOG and we deserve better.