@naota3k 5 жыл бұрын
It's almost unbelievable what 5 or 6 years of practice can do. Love ya Jason!
@gailsmith5035 Жыл бұрын
I need to know the cost for a flywheel for a 1975 ?gmc truck please.
@EngineeringExplained 12 жыл бұрын
I just really like flywheels...
@user-ch5ij5yd2g 6 жыл бұрын
Engineering Explained you're not alone
@kamilzarzycki3866 6 жыл бұрын
whats your opinion on lightweight vs stock weight. i think stock weight adds a better kick whereas light weight will spin faster but lose energy while disengaging the clutch
@tylerdavid462 4 жыл бұрын
hello thanks for your video. here's my question. since flywheel store inertia force and make power distribution evenly. why we still trying to reduce crankshaft weight？ what's the disadvantage that build flywheel weight into crankshaft ？ thank you for your answer.
@baldguysquattinginthedark4567 4 жыл бұрын
Engineering Explained I like turtles
@Kronikul-yz9rf 4 жыл бұрын
@@tylerdavid462 imagine saying 'thank you' for your answer and you don't get one lol
@joelgaslin2002 8 жыл бұрын
Nice job on explaining this. I learned about flywheels when I was in college. I had an old Mustang with a tooth missing on the flywheel and if the starter engaged in the wrong place, it stuck. I'm not much of a mechanic and after paying to have it towed and fixed once, I learned to fix it myself. After that, I kept a set of coveralls in the car and when it got stuck, I crawled under there, took off the starter, disengaged the little gear that popped out, hooked it back on and went on my merry way. My girlfriend (now wife) didn't like it too much but I thought it was pretty nifty....
@harounben342 5 жыл бұрын
Great and cool story!
@JesusTorres-zu8wz 5 жыл бұрын
Joel Gaslin You couldn't just stick a socket on the crank and rotate it? Easier than taking off the starter.
@jarriouscoleman1465 4 жыл бұрын
@@JesusTorres-zu8wz that's exactly what I was thinking 😂😂🤣🤣
@jay8a901 4 жыл бұрын
@@JesusTorres-zu8wz let him be bro, let him feel good about himself 😂😂
@MrNorotic 2 жыл бұрын
That's actually pretty cool
@hayleexl3 Жыл бұрын
I know this video is super old but as someone who is a new service writer at a Mack/Volvo dealer (tons of experience in the trucking industry just not on the mechanical side), this is super helpful and well explained. Thank you.
@EngineeringExplained 11 жыл бұрын
Thanks for watching so many! I'd like to get into dual mass flywheels eventualy - Porsche uses both types, depending on the car. Definitely an interesting topic - can't promise it'll be anytime soon though. Cheers!
@EngineeringExplained 12 жыл бұрын
Thanks. For a lighter flywheel you can basically reverse the pros/cons I have listed. You'll get better throttle response, but you'll lose the smoothness. But for some engines, and small engines, this could be ideal.
@drifter.11 2 жыл бұрын
will a lighter flywheel affect engine breaking?
@EngineeringExplained 11 жыл бұрын
I believe balancing a flywheel is done to remove some of the scratches that occur on the surface, making the contact better between the clutch disc and the flywheel.
@Mr.Exquisite 7 жыл бұрын
Hi, your explanations are very great and very colorful and useful! I just want to mention, that in compression state, the cylinder doesn't produce any torque, as you said correctly, but it consumes torque to compress the air. Keep on!
@uriahbleue1947 8 жыл бұрын
humans are amazing creatures.
@angelgarnica6923 5 жыл бұрын
we still pollute the earth .....but we try to fix it???
@angelgarnica6923 5 жыл бұрын
Like the catalyst converter
@ImNotADeeJay 5 жыл бұрын
a minimum percentage of humans. Most humans are mediocre (and that including me)
@jibrankhalil4837 5 жыл бұрын
@@ImNotADeeJay Henry Ford could have done nothing if the farmer didn't produce his food or the factory worker didn't make his shoes or the construction worker didn't build his shelter so that he could sleep peacefully
@isidroc.2507 5 жыл бұрын
Says the turd
@ChaomPR 10 жыл бұрын
So the flywheel is simply a plate mainly to add weight to keep inertia on the crankshaft? This had me thinking, so I want a flywheel not too heavy so its easier to accelerate, but heavy enough to have a good inertia. Am I right?
@orficaldari3524 6 жыл бұрын
Ricardo Rivero Exactly
@isidroc.2507 5 жыл бұрын
Just buy a aftermarket one you cant go wrong with those there better than stock
@colin9098 5 жыл бұрын
Yes, that is what he was trying to explain
@cyberhodl 5 жыл бұрын
Why don't they make the flywheel with Moving mass? Like the mass can move from the centre to the edge of the wheel to increase or decrease inertia?
@naota3k 5 жыл бұрын
YUP! You literally nailed it. I'd imagine that your suggestion is exactly what most auto manufacturers are aiming for. The way I picture the function of a flywheel in my head is like pushing someone on a playground swing. You're continually adding more and more energy to the system, but because your additions are not constant, steps would happen. But, because you've already added so much energy, the inertia alone is enough to drive the system, with obvious slight loss over a period of time. Obviously when you stop pushing someone, they don't come to a sudden stop from a full swing. They're using up the energy "reserved" in the inertia of the system.
@EngineeringExplained 12 жыл бұрын
Yes, that's the "requires more energy to rotate" part. More energy goes into rotating a flywheel, meaning less energy goes to the tires. You've got it right.
@FUAYM 9 жыл бұрын
I am going to take the marine officer examination, this video helps me a lot in studying the flywheel, which is part of ship's propulsion system, and not so much textbook describe it . Thank you so much for sharing . Favoured and subscribed.
@electronicsNmore 9 жыл бұрын
Great video!
@EngineeringExplained 10 жыл бұрын
Ahh, you must have had the volume muted. Double check next time! :)
@Alsemenor 6 жыл бұрын
Great explanation! I always have trouble wrapping my head around these technical and physics--related things, but now at least I understand the purpose of a flywheel! Thanks!
@meganw6007 3 ай бұрын
Thank you for explaining this! I have been wondering this for years! Your potter’s wheel analogy is amazing, and really helped it make sense!
@FinntheSquire 15 күн бұрын
Man, who knew my curiosity about a Lego bike, would actually lead me down this path! Thanks for explaining it!!
@mnsoans 8 жыл бұрын
Ending of the video is so abrupt. :/
@rick43pen 4 жыл бұрын
its the smart thing to do because youtube only gives the poster credit if people watch the video to the end. Too many videos have long drawn out endings which people don't watch so they stop before the end.
@ryans413 4 жыл бұрын
At the end soon he said that’s what your starter motor attaches too a car started lol
@MsTiagosk8 4 жыл бұрын
@@ryans413 Not at all. "The flywheel is gonna be spinning in here and that's actually what the starter motor will attach to, to start the engine"
@cjonh808 3 жыл бұрын
@@MsTiagosk8 shut up
@MsTiagosk8 3 жыл бұрын
@@cjonh808 cry me a river
@seankagan1246 9 жыл бұрын
i have to thank you because this is my 150th video i have watched and i learn so much from you and from other videos i think i can build a car now :P
@Calling321 9 жыл бұрын
Go for it
@kannankrishnasamy1191 7 жыл бұрын
built ??
@harounben342 5 жыл бұрын
Built or not? Or let's unite to build it together...
@TopJewShalom Жыл бұрын
coming back to watch these old videos is always so jarring, but excellent none the less.
@ziongite 3 жыл бұрын
It's nearly analogous to a capacitor in electronics, which also store power and even out the voltage fluctuations, and a larger capacitor will smooth the voltage even more and store more power.
@EngineeringExplained 11 жыл бұрын
Any rotational mass will add to how smooth the engine runs. The greater the mass, the more smoothly it will run, but it will also waste more energy, so you have to balance it. Also, the flywheel serves another purpose in manual cars, as something that engages with the clutch disc to connect the engine to the transmission.
@ergosteur Жыл бұрын
Been watching your channel for about 5-6 years now, today had a desire to learn about flywheels and ended up here. Pleasant surprise but also not surprising, of course you have a flywheel explanation video!
@EngineeringExplained 12 жыл бұрын
I've got a video on KERS coming up, but I explain the method used by the GT-3 R Hybrid. Formula one uses ultracapacitors (I believe) and I briefly discuss this in the video I have coming up. The general idea remains the same though. Patience my friend! I get 5+ requests per day. :)
@chrisreichart8865 10 ай бұрын
Came here as someone starting technician school in a few months. I'm trying to figure out what a flywheel is, within the first 45 seconds his analogy has already made it understandable.
@runstokesrun 11 жыл бұрын
First off, great videos! Been watching them non stop for the past week trying to increase my car knowledge, you are an excellent teacher and keep things simple and to the point without being patronising! I have a question though, my car has a dual mass flywheel, could you please explain the difference between a solid and dual mass flywheel? Thanks!
@methodman520 12 жыл бұрын
EXCELLENT VIDEO! 1 thing I think should have been mentioned however: You something about a flywheel mating with the torque converter, however, when a torque converter is used (Automatic) there is whats called a "flex plate" usually spot welded to the TQ. The flex plate is much lighter, case the tq adds weight to the assembly. Flywheels are typically bolted on to the crank, and are really heavy. Source: Associates in Auto/maintinance, studying Mengineering at UT
@awesome5me 12 жыл бұрын
Believe me I was just learning about flywheel the other night and now when I visit your channel I find a video on it uploaded
@EngineeringExplained 11 жыл бұрын
Yes, bikes are something that have been request a few time, I may eventually do a playlist on them. Cheers
@The_FS13 12 жыл бұрын
I like the fact that you used the car to show where it is located, for me that part of the engine is already basic but for some people I bet that it helps alot having a real life example to look at.
@CompanyofHeroes999 2 жыл бұрын
Hello, just wanted to point one thing out. From a physiscs and engineering standpoint (this was layman approach), there are a few misconceptions maybe.. torque of the engine doesn't smooth out.. it stays the same with or without flywheel. The thing that changes is that angular rate acceleration and jerk (rate of change of acceleration) are smoothed out. More inertia for same torque means less acceleration, or smaller change in angular rate. Even power distribution is theoretically the same if we are picky about it- energy input in time is the same. Details that are pretty important to note.
@christopherwoloshyn 9 жыл бұрын
Thank you for the quick, clear, and concise expination.
@formula1nh 12 жыл бұрын
Hi there! Torque is basically a turning force. A great analogy is where you apply force on a rench connected to a bolt at a certian distance. Let say 100lbs of force apllied to a rench which is a foot long connected to a bolt. Times both of the values and units together to give a Torque of 100 ft lbs. higher the value, the higher the torque. Another e.g Gears, the radius (distance) of the gear times the force applied to the teeth.
@Tuscani407 9 жыл бұрын
I would like to hear your explanation of single and dual mass flywheels.
@EngineeringExplained 11 жыл бұрын
It's the clutches/bands of the transmission switching gears.
@juliohernanjaraaguilera3000 9 жыл бұрын
I didn't even know the meaning of "flywheel" in spanish (i'm from Chile), and i looked for it over here rather a translator. Very nice video! Simple explanation and a ver good example.
@EngineeringExplained 11 жыл бұрын
Since you're new I would suggest starting with my videos "engines - explained" and "car gears - explained" which should help clear some things up. Lower gears will have higher torque but lower top speeds. The flywheel rotates at a steady speed due to its mass, but the speed is certainly not constant. Any forces that act on it will slow it down or speed it up.
@EngineeringExplained 12 жыл бұрын
Yes sir, you are correct. Basically the dual mass will allow for a little more driver error without feeling so harsh, the single mass is less forgiving.
@raywill 3 жыл бұрын
Another great example would be starting a lawnmower. Great video.
@brewman5563 2 жыл бұрын
Solid explanation. Thank you
@PearsAreOkay 11 жыл бұрын
Jokes aside, this is an excellent video and it appears the rest of your channel is quality as well.
@MrDaveymac08 11 жыл бұрын
Thanks for such a helpful post. In particular thankyou for putting it in context at the end by pointing out roughly where the flywheel etc. actually sit under the bonnet - it's incredibly unusual to find any videos on car mechanics which actually show where these key components are located relative to each other, 'in situ' - nice work!
@matlock8314 2 жыл бұрын
I didn't understand how flywheel store energy but your explanation with your graph hit home. Thanks.
@WilliamMarceloPaiva 10 жыл бұрын
Perfect explanation. Congrats!
@EngineeringExplained 11 жыл бұрын
Your logic is sound; a heavy flywheel would keep the engine RPMs up longer than a lower weight flywheel, as it would take more energy to slow it down. Also (not really applicable to racing games) I've noticed that on my gf's car (a Mazda 3) the electronic throttle keeps the revs up, it takes longer to close the throttle valve when you let go of the gas pedal.
@EngineeringExplained 11 жыл бұрын
I don't know. Have you actually measured the g-force while engine braking to know it's reduced? Also, it could be any number of things - more friction anywhere along your driveline from any number of reasons. First I'd wonder though if there actually is a difference, I expect regardless it would be incredibly minimal.
@EngineeringExplained 11 жыл бұрын
Yes, reducing weight on the flywheel would help you rev quicker in neutral (and in gear, but it would be less noticeable in gear). It's still a worthy modification, if you're looking to reduce rotational inertia, thus increase your useable power. On the flip side, if you plan on dragging your STI (dunno, some people), then a heavier flywheel may be a better option as it allows for more stored energy at launch. ("Free" energy, that doesn't use your 1/4 mile seconds to produce).
@russellg5022 9 ай бұрын
Bro, who are all these comments for?
@velvethamster9809 8 ай бұрын
@@russellg5022old KZfaq didn’t have direct replies
@EngineeringExplained 11 жыл бұрын
Interesting suggestion. I'd have a difficult time without any visuals though. What would you suggest talking about? I certainly couldn't explain how cars work haha.
@toxigenegoober 11 жыл бұрын
You should do a video on mass during cornering. I want to say it cancels out in a constant radius corner, which is counterintuitive and interesting. Love the explanations! Go back to school and get a Masters in education. Teach your students the same way you do on here and you'll be a fantastic instructor.
@carolm3468 2 жыл бұрын
That was awesome! Great explanations and drawings! You should be a teacher
@EngineeringExplained 12 жыл бұрын
I don't think cost is really the issue, but more of the reliability with each. A dual-mass flywheel will be smoother, and works fine if the engine isn't going all out as far as torque transfer, but it can have slipping between the masses, and this will create a lot of heat and can cause problems if abused. A single mass flywheel will be rougher, a noticeable difference in feel of the torque transfer, but can handle the abuse better.
@margezwolinski4269 7 жыл бұрын
I enjoyed your video a lot, you teach well -- better than many professors i've had!!! Very organized and well-structured explanation in a way that made sense and was easy to understand. THANK YOU. :) -emmz
@EngineeringExplained 11 жыл бұрын
Not necessarily, but it could potentially aid. If you are rev matching a downshift, it shouldn't matter. If you're upshifting, the revs should drop a bit quicker, but not a huge difference.
@erblinkurtishi1878 4 жыл бұрын
Dude, you have come a long way.
@EngineeringExplained 11 жыл бұрын
I was not sure at all, I went in as a biological/agricultural engineer, changed over to ME after my freshman year. Many universities will have courses and open houses going over the various engineering fields.
@magnumllama400 Жыл бұрын
How did you change
@henryspragge 2 жыл бұрын
Now I thought that having four pistons where each combustion stage is offset (not occurring at the same time) was what produced the equal distribution of torque. Could someone explain why that isn't enough and you still need a flywheel?
@EngineeringExplained 12 жыл бұрын
Glad I could help you! Best of luck with ME.
@dregroove32 12 жыл бұрын
Ive learned so much from ur vids and its giving me more confidence going into mechanical engineering. I kno there more to it than what u staying but it really givse a general fell
@EngineeringExplained 11 жыл бұрын
Heavier flywheels take more time to rotate as they have greater inertia. A ligher flywheel will allow the engine to accelerate more quickly, which will appear as a perceived increase in power. The engine makes the same power, but you have access more of it as less is lost in energy to rotate the flywheel.
@squidpq 11 жыл бұрын
Nice video. I had been looking for a brief, succinct explanation. Thanks for the posting this.
@EngineeringExplained 11 жыл бұрын
Thank you! If you watch my older videos the camera quality isn't so hot. But yes, it does come down to money. My girlfriend was kind enough to buy me an excellent camera about a year ago.
@Black101Warri0r 11 жыл бұрын
Ooooo ok so that makes sense, the smaller the flywheel is the closer it gets to matching the circumfrence of the crankshaft (which its spin has less smoothness due to power strokes of diff cylinders). But if u increase the size of the flywheel the gears on the circumfrence of the flywheel will allow smoother movement with almost no noticeable pause during power strokes. Genius vid
@FarmYardGaming 3 жыл бұрын
Reminded me of the Williams flywheel concept, and the R18's (quite loud, and for good reason) flywheel system up to 2016.
@masihdokami2395 3 жыл бұрын
dude that was a great way to simply explain a flying wheel. thanks by the way:)))
@Michaellllllllllllllll 5 ай бұрын
Keep up the good work! One day you will become successful!
@longebane 16 күн бұрын
how is this still the only video on youtube that explains what the hell a flywheel does
@EngineeringExplained 11 жыл бұрын
It would be correct to assume that a larger flywheel would reduce engine braking, as it has more inertia and would attempt to keep the car rolling. A lighter flywheel would be easier to stop, hence it would increase engine braking. The design is important also, where the mass is relative to the center of rotation.
@christianlegoguy14 11 жыл бұрын
See this is how youtube videos need to be! -__- Good camera quality, (I understand money issues though) Very well explained, No drama...... I love this video.
@debuti 4 жыл бұрын
I love your helmet, its perfect to avoid accidents in your work place!!
@EngineeringExplained 11 жыл бұрын
Think of the flywheel as a uniform rotating mass. It doesn't have timing, like the cams do geared to the crankshaft. Blue smoke means you're burning some oil. For older engines with worn piston rings, this is pretty typical.
@daverussell8897 9 жыл бұрын
Nice video. You always make it so easy to understand.
@abymondesir23 8 жыл бұрын
very well explained, the sad thing is education is free and most humans rather ask then look up the free knowledge that's out there on all subject matter through internet and our common everyday iphones/smartphone, great video, made my day
@hypershadow5g 9 жыл бұрын
A question about flywheels, would an engine with smoother power strokes or heavier crank (say a v8, v10, or a v12) be able to get by without using a flywheel? Or maybe a lighter flywheel?
@Daddelcrusher 8 жыл бұрын
Thats true. A Maserati V12 i once had my hands on had a very small lightweight flywheel with a size about 15 cm.
@seanpollard4844 8 жыл бұрын
McLaren F1 has no flywheel just a ring gear for the starter pinion.
@paulchristian5375 4 жыл бұрын
Thank you for this! Reading about it online really did nothing!
@We_Are_I_Am 7 жыл бұрын
Having a lightweight flywheel will increase engine response, and also because the engine comes down in RPM quicker, it means one can shift faster, and will increase acceleration, as well as have the benefit of obvious weight loss. Having a light flywheel will increase the roughness of the engine, and it will make a manual transmission car easier to stall, thus requiring more slip in the clutch to get the car to go, and it will also be damaged easier if its lighter, as their is usually less metal overall to work with (if it's too thin/weak, the flywheel may explode from a bad shift, causing a bad day, or worse).
@trcrawford45 11 жыл бұрын
I have a suggestion that I think everyone may find useful: At the end of your videos, explain what the driver will experience whenever the flywheel (or whatever part you're explaining) goes bad or is broken.
@southland906 8 жыл бұрын
Really clear explanation, much appreciated by a mechanically challenged.
@kritbhumivarn3699 9 жыл бұрын
Excellent explanation. That's help a lot to understand what is a flywheel.
@RoneyRamos 5 жыл бұрын
Very good video. Thank you for your time and help!
@EngineeringExplained 11 жыл бұрын
You're welcome! Thanks for watching!
@EngineeringExplained 11 жыл бұрын
For the most part correct. Yes, there's always a balance between smooth revs and power delivery vs faster acceleration.
@spinningchurro 6 жыл бұрын
Your videos have greatly improved.
@EngineeringExplained 11 жыл бұрын
Not yet! And the word "yet" doesn't hold an incredible amount of weight coming from me, as my suggestions list is rather large. Thanks! :)
@CodyOsborn1 7 жыл бұрын
Quick and painless explanation thanks!
@adolfconradigharas439 3 жыл бұрын
Thank you so much for this explanation brother. May GOD Bless you. Keep safe.
@MRMAN-wb1tv 2 жыл бұрын
*Where is this guy these days? He should held as an American treasure as a teacher*
@formula1nh 12 жыл бұрын
AND in the flywheels case, I'm sorry that I can't work out the Torsion mathematically. But in the wheels case. The higher the torque on the drivetrain such as gears, flywheel, diffs and etc, the higher the torque (the turning force on a pivot) on the wheel. Hope that helps :)
@SteezyOtis 11 жыл бұрын
Great videos, I would suggest starting a weekly podcast. Enough people follow you and enjoy your work I'm sure it would be a success. I would listen everyday. You could be making serious money and imagine if someone like GM sponsored your show. That would be serious money for start up cost of a microphone. Your knowledge would be spread to a whole new group of people. Keep up of the good work. Thank you
@EngineeringExplained 11 жыл бұрын
Well, it's a bit complicated. A larger flywheel may make it easier to do a burn-out, as when you dump the clutch you would have more energy stored in the flywheel. However, since it takes more energy to accelerate a heavier flywheel, a lighter flywheel would allow for better acceleration (a greater force at the wheels). The engine torque remains the same, but the useable torque at the wheels will increase with a lighter flywheel.
@adamgerald849 4 ай бұрын
Great explanation. Thanks.
@oldschoolwarrior 3 жыл бұрын
I really enjoyed this video. I would love it if you could explain its role in starting the engine and how if the teeth in the gearing break it prevents it from starting.
@incyphe 12 жыл бұрын
Great explanation. Your work is very much appreciated
@sheriffoftiltover 5 жыл бұрын
Thanks for the video. This helped me understand how it'd be possible for Garage 54 ENG to combine two engines via the flywheel without them needing to be firing in sync.
@johnthomas4516 11 жыл бұрын
Nice vid, dude. Explained simply and clearly. Thank you.
@spyonthesoftparade 4 жыл бұрын
Perfect, really helped my studies. Thank you.
@ThabaniTBowseHadebe0909 11 жыл бұрын
Lol..I wish brother, maybe a sponsor..Trying to upgrade myself...I know what I'm looking for thanks to your videos..Keep it up..anything about..Could you do one on Hydrolic or I think its electrically adjustable suspension..? Cheers
@kestutiskarneckas4153 9 жыл бұрын
I just want to add on a very important thing you forget to mention on your video. Car manufacturers solving problems with the flywheels. For example, they trying to make it descent size, because of keeping engine smooth, but it has to be very light, because engine have to be sharp in revving. It has to be light to keep revving faster, and when you changing gears, if it will be to heavy, it can slip the clutch, or damage gearbox. The perfect example, that I want to talk about, is a Lexus LF-A, because that V10 engine can rev from idle to max rpm, in 0.6 seconds ! Lexus engineers did it because of the flywheel, that's what I am assuming :)
@MrPaperjazz 8 жыл бұрын
+Kęstutis Karneckas The size of the flywheel and its weight do not directly concern what you're talking about. The only important characteristic of the flywheel that has to do deal with either the smoothness and the quick revving is the inertia, as explained in this video. In case of the LFA, I'm pretty sure the flywheel is very light, it's a necessary condition for quick changes in the rotational speed. What could help to have a smooth engine (but since I've never been in that car, I don't really know how smooth is it) is the V10 displacement: you have a combustion stroke every 72°. At least I would say that 552 hp helps a lot to rev pretty quickly a regular flywheel.
@vladvladSM 11 жыл бұрын
The rpm's are usually limited from the car's ECU so a lighter flywheel would not increase the rpm, but it makes you get to redline faster.
@VQSeries 11 жыл бұрын
Dear EngineeringExplained, will you please make a video explaining how Synchros work, why some vehicles don't have them, how they can still drive (I've heard of double-clutching?), and why 2nd gear synchro normally wears out quick (or a least so I've heard, and in my experience lol)? Please and Thanks!
@formula1nh 12 жыл бұрын
Is it me or is it your looking very happy on that video. You had this unusual smile on the beginning of the video. On the previous videos I watched you hardly smile and look very serious :P I haven't watched all of the videos, I'm trying to LOL.
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