DO NOT PAY FOR THIS! it may not have started as a scam but now it is for sure! if you check social media, you will find a lot of people who ask for help and were ignored by this guy. in a few weeks the site forgot I bought the course and even if I am loged it it won't let me watch videos, offering me instead to buy the course again. no one responds emails nor messages sent to the social media profiles. also, the course is incomplete and this guy has not uploaded anything in years. and none of the site-only videos were is 4k as promised. only the free youtube ones were. there is not even an option to download the videos, so unless you know of a hackey way to do so, don't bother giving money for this. if someone finds a way to download the videos, please upload them to the pirate bay. despite all, the videos were actually quite good.
I agree, to bad he hasn't uploaded in months I am doing my automotive service technician fundamentals course and this video I feel the way he explains it is way better than most of the channels I find when I'm looking up specific things
I’ve watched two videos and I’m sold. You’re the guy everyone needs to learn from. This is amazing content. Didn’t miss anything at all or leave anything out.
DO NOT PAY FOR THIS! it may not have started as a scam but now it is for sure! if you check social media, you will find a lot of people who ask for help and were ignored by this guy. in a few weeks the site forgot I bought the course and even if I am loged it it won't let me watch videos, offering me instead to buy the course again. no one responds emails nor messages sent to the social media profiles. also, the course is incomplete and this guy has not uploaded anything in years. and none of the site-only videos were is 4k as promised. only the free youtube ones were. there is not even an option to download the videos, so unless you know of a hackey way to do so, don't bother giving money for this. if someone finds a way to download the videos, please upload them to the pirate bay. despite all, the videos were actually quite good.
Got a 2014 Chevy Silverado that blew its engine back in October, 180k miles, and finally figured out last week a valve went out in the engine and apparently parts of the valve were found in the exhaust. When it went out on me it still drove for about a mile as I could safely get off the road if I didn’t stop immediately so I had that going for me as well as we were able to find an engine to replace it with. Decided to look more into valves and this video was interesting. Hopefully how I said that makes sense, I heard what caused it from my dad who is in contact with the guy that’s replacing the engine for us so I haven’t seen any of this myself.
A well done video. What's really annoying about interference engines is when they put rubber timing belts on them. Then when the break, you lose the engine because you didn't change out a $50 belt. This is why I'm glad that for the most part, a few good auto makers (Toyota, Ford and others) make non-interference engines with timing chains, or at least chains when they are interference engines.
Very clear and high quality vid and channel. if i may say something, you forgot to mention how the spring is keeping the valve closed. (caps and retainer...)
i am planning to be a car mechanic as i am related to completely different field, and yet i have my 5 hours watching your videos, now when i drive my car, i know how its moving
The intake valve is bigger than the exhaust valve because the pressure difference at the intake region is less (also mass flow rate less) than the pressure difference at the exhaust region(also mass flow rate more). But mass flow rates must be same for intake as well as exhaust (m(in) = m(out)) hence to satisfy this, the area of intake region should be bigger than the area of exhaust region.
I love the channel, guys, but there is one thing that bugs me about your explanation and most of the explanations I've seen regarding why intake valves are larger than exhaust valves. Fundamentally, 'sucking' and 'blowing' are both cases of a differential in pressure. Pressure naturally tries to equalise, and the bigger the difference, the greater the force exerted on those gases. If you imagine two jars connected by a hose and a valve, and add 10psi of air pressure to one of them. Open the valve, some air flows through the hose, and the pressure becomes equal. This is the same case regardless of which jar you add the air to first, and regardless of the absolute pressure. It's only the differential or gradient of pressure that creates flow, and the concept of sucking being a different phenomenon to blowing is a falsehood unless you are talking about something like a leafblower where a flow of gas exists in open space. There are three simple reasons, as I see it, for exhaust valves being smaller than intake valves: 1: The valve gets hot. Smaller surface area, less heat absorbed from the exhaust gases. 2: The limitation of atmospheric pressure. No matter how you configure an engine, unless it is boosted with a super or turbocharger, the greatest difference in pressure that can be created by a piston moving downwards and creating a partial vaccum is 1 bar or one atmosphere of pressure. When the same piston moves upward on its exhaust stroke, that pressure differential can become much greater than one atmosphere, thus, higher flow rate, allowing a smaller valve to be adequate. 3: Most importantly, the exhaust gases are HOT. They have just undergone combustion. The pressure is already significantly higher than atmospheric, so even if the piston didn't move upwards, the pressure of the hot gases would cause them to flow out the exhaust valve. In summary, hot exhaust gases being squashed by a piston are able to reach pressures much higher than 1 bar. Hence, a smaller valve is adequate and thermally desirable.
Where is the video on the head? What happened with the woodworking? Although you spoke about the valves bending you didn’t mention what happens when a timing belt snaps and bends them all. At least that’s what the mechanic told me what happened on my Ford XR3i as he took much money from me. 💸👋🏼
Why not make the valve the same material? Wouldnt that be better to have heat transferred along the stem as well as the head? instead of just having it all in one point. Sorry if i sound stupid, iv just started in automotive engineering, and just curious.
Did you mention how the length of the valves effect the performance of the combustion intake? Did you mention the stem height? You need to explain this for clarity because if you order some valves and they are not the same lenght but the diameter is the same then you will have a combution problem balance in the intake gases and the exhaust gas also. Explain it please.
Bro you told in interference engine same space is used by value and piston right..! But how does exhaust takes place, because in exhaust when exhaust valve come down, the piston moves up to push gas out from the chamber through the exhaust value. So won't they collide then..?
How bent does a valve need to be to cause no compression? I have a cylinder head that has compression issues but the valves look oddly straight which I wasnt expecting.
Is there a way to examine/inspect the valves without tearing the engine away? I mean by inspecting its performance or some ex-ray etc? Ultimately, how do you know that you have a faulty valve? (Bent or one with its head burnt/destroyed?)
Unbeatable quality and thoughtfulness.
Why not have one large pair of valves per cylinder instead of multiple pair of valves
@@abdulmoen because of the geometry.. four holes side by side gives more diameter area then two big ones in a given space.
Yeah
No nonsense.
As others have said, the quality of education and delivery in this video is just unrivaled. You are an excellent teacher and I've learned a lot!
DO NOT PAY FOR THIS! it may not have started as a scam but now it is for sure! if you check social media, you will find a lot of people who ask for help and were ignored by this guy.
in a few weeks the site forgot I bought the course and even if I am loged it it won't let me watch videos, offering me instead to buy the course again. no one responds emails nor messages sent to the social media profiles. also, the course is incomplete and this guy has not uploaded anything in years. and none of the site-only videos were is 4k as promised. only the free youtube ones were. there is not even an option to download the videos, so unless you know of a hackey way to do so, don't bother giving money for this.
if someone finds a way to download the videos, please upload them to the pirate bay. despite all, the videos were actually quite good.
No more bullshit talk no intro music no head ace music nothing simple and lovely way to teach us 😉
Simply put,
No Nonsense...
This channel is worth many more views and subs
High quality video! Straight forward, easy to understand and no background music.
I agree, to bad he hasn't uploaded in months I am doing my automotive service technician fundamentals course and this video I feel the way he explains it is way better than most of the channels I find when I'm looking up specific things
I must say my new friend you have the best channel for learning about the mechanics of automobiles. Thank you!!
I’ve watched two videos and I’m sold. You’re the guy everyone needs to learn from. This is amazing content. Didn’t miss anything at all or leave anything out.
Interference engine and more....
So much shared knowledge beyond just engine valves.
Thanks for the video.
I sell car parts for a living and yet I still occasionally learn a thing or two from your videos. Fantastic work
Bought your full course, cant wait to learn everything about my car!
Where can I get the full course
Totally worth it
I bought it but I can’t watch the videos
One of the best videos about cars .. thank u
Omg thank you. I now understand why people say interference motors can get damaged when the timing components break. Very helpful.
From finding your channel 30 mins ago to buying your course, thanks Alex. Just what I was looking for!
How to buy? Is it removed?
I've never heard such a clear explanation of an interference engine. I've heard a few people half explain it.
DO NOT PAY FOR THIS! it may not have started as a scam but now it is for sure! if you check social media, you will find a lot of people who ask for help and were ignored by this guy.
in a few weeks the site forgot I bought the course and even if I am loged it it won't let me watch videos, offering me instead to buy the course again. no one responds emails nor messages sent to the social media profiles. also, the course is incomplete and this guy has not uploaded anything in years. and none of the site-only videos were is 4k as promised. only the free youtube ones were. there is not even an option to download the videos, so unless you know of a hackey way to do so, don't bother giving money for this.
if someone finds a way to download the videos, please upload them to the pirate bay. despite all, the videos were actually quite good.
Interference engine.
The guy knows his stuff. The best I’ve seen so far
This is the best youtube channel for car knowledge ! By far !
Passion is visible by your teaching sense and knowledge
Got a 2014 Chevy Silverado that blew its engine back in October, 180k miles, and finally figured out last week a valve went out in the engine and apparently parts of the valve were found in the exhaust. When it went out on me it still drove for about a mile as I could safely get off the road if I didn’t stop immediately so I had that going for me as well as we were able to find an engine to replace it with. Decided to look more into valves and this video was interesting.
Hopefully how I said that makes sense, I heard what caused it from my dad who is in contact with the guy that’s replacing the engine for us so I haven’t seen any of this myself.
so informative and in complete detail about valve. thanks man
A well done video. What's really annoying about interference engines is when they put rubber timing belts on them. Then when the break, you lose the engine because you didn't change out a $50 belt. This is why I'm glad that for the most part, a few good auto makers (Toyota, Ford and others) make non-interference engines with timing chains, or at least chains when they are interference engines.
Your explanation style is far better than animated explanation.
Thank you for showing how the valves fit in, I want to make a 4 stroke engine and I had some doubts to how to deal with the valves
This dude alone makes youtube meaningful
This mans videos are truly amazing
this is too good to be free on youtube!!! THANK YOU!!!
This is gold. So informative👌🏼 top notch quality
Excellent video mate clear & precise explanations as to how the valves work in a cylinder head!!
this is exactly the channel i was looking for...subbed
Very clear and high quality vid and channel.
if i may say something, you forgot to mention how the spring is keeping the valve closed. (caps and retainer...)
No ads?? For real?? This is the most worth watching channel
Thank you for educating with lot depth visual clarity, just like valve guide how a valve fits in it
I’m learning so much from this guy. I’m going start saving to pay for the full course. I Will definitely get my money’s worth
I'm just wondering why this channel do not make videos anymore.
Very high quality content, appreciate the effort behind this work. Thanks a lot man !
i am planning to be a car mechanic as i am related to completely different field,
and yet i have my 5 hours watching your videos,
now when i drive my car, i know how its moving
Wow! Just a GREAT presentation!
Your gazing upon a genius when tuned into this channel.
Please continue the series it's very helpful.😀
Love it bro....please make more videos...on these parts....
The explanation is very clear.
These videos are really good. Information very accurate. However if you had an animator to animate your descriptions then this would be flawless.
Delivery par excellon! Knowledge priceless!!!
brothr u are graat teacher may god bless you plz keep up the good work
The dragging on the machined surface!!! Good video tho, learned somethings !
Dopamine to my soul , gr8 video Sir. Subbed
unbeatable videos and channel to compare all youtube videos about car really i appreciate your work
Excellent video, very informative and helpful
Dragging that head, face down across the table @ 2:51 made my brain fucking scream
No fluff, cheers mate.
Thank you so much for this content🙏
10:50 The Hemi guys just went all giddy
Wow! It’s amazing, I always wanted to know how there stuff works, and here I’m. Thanks, you doing exceptionally well...
Nice video men in depth skills
good information. wish i could absorb it all.
Wow, ur a natural educator
Your doing premium content, thanks for that!
Well explained bro, keep up the good work 👏
The intake valve is bigger than the exhaust valve because the pressure difference at the intake region is less (also mass flow rate less) than the pressure difference at the exhaust region(also mass flow rate more). But mass flow rates must be same for intake as well as exhaust (m(in) = m(out)) hence to satisfy this, the area of intake region should be bigger than the area of exhaust region.
Good explanation
In most engines the intake valve is also cooled by the air/fuel mixture.
Air yes, fuel no. Most engines have direct injection.
Brilliant guys. Liked!
Please Sir ! Make 1 video on ... ENGINE and VALVES ARRANGEMENTS
Thank you for this video this is so useful
Thank you !! another great video .....
Where would one find the video about the cylinder head?
Good Evening How a car works
Thanks 👍
From Nick Ayivor from London England UK 🇬🇧
I love the channel, guys, but there is one thing that bugs me about your explanation and most of the explanations I've seen regarding why intake valves are larger than exhaust valves.
Fundamentally, 'sucking' and 'blowing' are both cases of a differential in pressure. Pressure naturally tries to equalise, and the bigger the difference, the greater the force exerted on those gases. If you imagine two jars connected by a hose and a valve, and add 10psi of air pressure to one of them. Open the valve, some air flows through the hose, and the pressure becomes equal. This is the same case regardless of which jar you add the air to first, and regardless of the absolute pressure. It's only the differential or gradient of pressure that creates flow, and the concept of sucking being a different phenomenon to blowing is a falsehood unless you are talking about something like a leafblower where a flow of gas exists in open space.
There are three simple reasons, as I see it, for exhaust valves being smaller than intake valves:
1: The valve gets hot. Smaller surface area, less heat absorbed from the exhaust gases.
2: The limitation of atmospheric pressure. No matter how you configure an engine, unless it is boosted with a super or turbocharger, the greatest difference in pressure that can be created by a piston moving downwards and creating a partial vaccum is 1 bar or one atmosphere of pressure. When the same piston moves upward on its exhaust stroke, that pressure differential can become much greater than one atmosphere, thus, higher flow rate, allowing a smaller valve to be adequate.
3: Most importantly, the exhaust gases are HOT. They have just undergone combustion. The pressure is already significantly higher than atmospheric, so even if the piston didn't move upwards, the pressure of the hot gases would cause them to flow out the exhaust valve.
In summary, hot exhaust gases being squashed by a piston are able to reach pressures much higher than 1 bar. Hence, a smaller valve is adequate and thermally desirable.
Can you do a video on timing belts and serpentine belts?
Great video thanks for the info 👍
Where is the video on the head? What happened with the woodworking?
Although you spoke about the valves bending you didn’t mention what happens when a timing belt snaps and bends them all. At least that’s what the mechanic told me what happened on my Ford XR3i as he took much money from me. 💸👋🏼
Can you explain about tappet clearance???
Can you make a series of videos about turbo engines & what is good & bad about it ?
Thank you
Why not make the valve the same material?
Wouldnt that be better to have heat transferred along the stem as well as the head? instead of just having it all in one point.
Sorry if i sound stupid, iv just started in automotive engineering, and just curious.
Very good chanell
Did you mention how the length of the valves effect the performance of the combustion intake? Did you mention the stem height? You need to explain this for clarity because if you order some valves and they are not the same lenght but the diameter is the same then you will have a combution problem balance in the intake gases and the exhaust gas also. Explain it please.
You problem?
EXCELLENT!!!
Awesome video!
2:07 this woodworking lead to nothing!? Lol
Lol... yeah, I was wondering the same thing.
LOL
I said to myself... That's not wood lol
U R Awesome Thanks
Bro you told in interference engine same space is used by value and piston right..! But how does exhaust takes place, because in exhaust when exhaust valve come down, the piston moves up to push gas out from the chamber through the exhaust value. So won't they collide then..?
The exhaust valve starts closing as the piston goes up.
Thought intake valves are smaller;
How bent does a valve need to be to cause no compression? I have a cylinder head that has compression issues but the valves look oddly straight which I wasnt expecting.
A bent valve won't seat properly which means it won't seal allowing combustion to escape through the gap
@@BENNO117 it turned out to be the hydraulic lifters not letting the valves shut properly valves were ok 👍🏻
When you replace the valve do you have to brake it in slowly or can you just run it like normal??
Seems like ppl don't care about their valves.
How do i know whether my engine interference or not?
Pretty sure you just have to look up the model; afaik there's no indicator on the engine itself.
Is there a way to examine/inspect the valves without tearing the engine away? I mean by inspecting its performance or some ex-ray etc? Ultimately, how do you know that you have a faulty valve? (Bent or one with its head burnt/destroyed?)
A compression test is a good way, or a vacuum test
Man! How brief you can be!😍 thanks in millions, but i have a question
If the valve fails why Engine blasts?
where is situated in engine valve ??
Kindly post more videos
where is the next video of you putting the valves back on the head and head in the block
Good bless u bro
You started this saying there was already a section on the head??? I can't find it.
ruclips.net/video/-EUPaXWjaeg/видео.html
The minimum amount of valves is zero. As long as you have ports ;-)
In a 4 stroke engine.
Biigg thumbs up.
This guy acts like someone sent by god to make people understand car mechanism..
this is how exactly I want to teach world politics to people.
Thanks a lottttt
information transfer succesful
nice
Where are you from
Love from india