How a Brake Booster and Master Cylinder Work
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- Опубликовано: 5 окт 2024
- Here's how a brake booster and master cylinder work to stop your vehicle with the press of your brake pedal.
Stopping a heavy, 2000+ lb car is no easy task. It takes a lot of force to press up against the discs and drums on each wheel to stop a car quickly.
The hydraulics of brakes is quite simple. A primary piston (known as the master cylinder) pushes fluid into hydraulic lines that get fed out to the wheels. The piston inside the caliper (or wheel cylinder inside the drum) will expand with the fluid, causing it to glide up against the disc (or drum), slowing the wheel.
The brake booster was developed to sit in between the master cylinder and driver's pedal, to make it easier for it to press the pedal. While the master cylinder's diameter is already smaller than that of the caliper pistons, the force required to compress it is still great.
The brake booster works on the principle of vacuum differentials to aid in pushing the master cylinder. On one side, vacuum is sucked from the engine's intake. At idle, a valve in the diaphragm allows vacuum to be passed through the diaphragm, so that vacuum balances both sides.
When you depress the brakes, that valve moves, sealing off the vacuum side, while allowing filtered atmospheric air to enter the booster from the brake pedal side. This creates a pressure differential between the diaphragm, which helps to force the piston in the master cylinder to compress.
A giant return spring brings the diaphragm back to its rest position when the brake pedal is released.
The master cylinder consists of two small pistons in series. Each piston routes to two diagonally opposite wheels, for redundancy in case one springs a leak or the seal is compromised. Reserve brake fluid is contained in a reservoir above the master cylinder and is sucked into the piston assembly when the brake pedal is pushed.
Periodic brake flushes are required because brake fluid is hydroscopic and will absorb moisture and loose its effectiveness over time. Furthermore brake fluid will wear down with heat, and may become contaminated.
Purchase tools used in this video to dissect your own car parts:
Angle Grinder (aka snap ring pliers):
amzn.to/3nyCsVp (US)
amzn.to/3hyoQFR (Canada)
3/8" Ratchet set:
amzn.to/3hA7LLD (US)
amzn.to/3zgHE2d (Canada)
Screwdriver set:
amzn.to/3tGeU1S (US)
amzn.to/3hy4Z9G (Canada)
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Purchase tools used in this video to dissect your own car parts:
Angle Grinder (aka snap ring pliers):
amzn.to/3nyCsVp (US)
amzn.to/3hyoQFR (Canada)
3/8" Ratchet set:
amzn.to/3hA7LLD (US)
amzn.to/3zgHE2d (Canada)
Screwdriver set:
amzn.to/3tGeU1S (US)
amzn.to/3hy4Z9G (Canada)
What about the toothbrush?
The snap ring pliers made me laugh.
Thank you! You're a very good teacher!
@@colinjohnson5515 same that was pretty damn funny definitely a little bonus to the good explanation he provided
What about the snap ring pliers?
Dude, your a freaking natural. The key words you use, the pace, the brief definitions, the smooth demos of moving parts and disassembly. This is what content should be like!
And the humor (snap ring pliers)
Ive watched hundreds of hours of turorials on a wide range of subjects. This was so clear, so concise, without any fluff. I've never come away feeling as informed as I am after this one. Thank you.
Sometimes seeing something in person actually helps you understand it
@@speedkar99 the Magic keeps happening...................
@@speedkar99 thanks bro way better than any animation can demonstrate
Agree 100%
The best explanation on any video I have seen. No shitty music, no intro bullshit, straight to the point and clear explanation!
+Joseph Jose straight and to the point my style!
Well said. I thumbs down all videos with unnecessary music and long lead-ins. I don't understand why the video editors think music enhances the spoken word.
AGREED! Straight to the point...excellent training video.
Throw in the toothbrush and his brothers dirty undies and you’ve got all the bases covered!
Yes... you have reason. good video and explanation. very clear. I was searching a video like this.. good job
This guy knows how to explain, and doesn't care to destroy a part to teach. Thanks for your effort man.
I destroyed a whole car to teach, check my other videos
Wow, the editing is perfect! No need for skipping forward: constant flow of useful information. The humor thrown is on point. Thanks!
Thanks
Excellent tutorial Dude. No BS. No fluff. No stuttering and searching for the right words. No talking just to hear yourself talk. Straight to the point. Like it!
That's my style! Thanks
You have a gift for explaining mechanics in a way that is very clear, concise and easy to understand.
+MGTOW MAP MAKER thanks. Short and to the point is my style...no time to waste.
Magic is called angle grinder.
I'll 327th that sentiment that you explain concepts well!
Yeah he does. Quick, clear and concise
That snap ring plier multitool is great
+pétri pat I love my angle grinder...err snap ring pliers..err hex socket...lol
speedkar99
I love mine too and I will often use the 5 inch diamant blade which works great on métal too and doesnt break in your face when your in a thight spot with that said thanks for your work
+pétri pat thanks. My grinder is 4.5" but sometimes I wish I had gotten the 5" blade for cutting a little deeper.
speedkar99
You can always take the guard off and put a 5 inch it works very well as for me I always take the guard off all my grinder s but im very carefull expecially if I use a thin métal blade as soon as there chiped like I change them because they break which is why I use the diamant one it last longer and you dont have to worry its going to break in your face and I use grinder all the time another tip I can give if you dont already know it is that I always use my hand to screw the blade while holding the stop buttons same if I want to change the blade I unscrew it by hand the only time this doesnt work is if the grinder is too old (used)been doing this for the last 15 years 😉
Thanks for the tip.
Toothbrush for a pointer and old underwear for a rag, NICE!!
Angle grinder a snap ring pliers.
Same way my dad rolls
Brother's underwear xD
…probably cleans his brothers underwear with the toothbrush.
I've been working on vehicles for 35 years and that is by far the most detailed explanation of how this system operates. Excellent job! Well done!
Awesome to hear that from an experienced mechanic
This is one of the very best instructional videos I've seen anywhere. Perfect presentation, clear, well-lit video, tons of info packed into only 7 minutes. Well done! You should get a job as an instructor/teacher!
Another awesome video. For me, I appreciate how you just cut right to the chase. You take the time to edit your videos so that they are succinct and to the point. So many other RUclips presenters seem like they spend so much time talking and wasting time and not getting to the point of why the video was made to explain in the first place. Keep up the great work!
+B S I agree. Short and to the point is my style. Thanks for the compliments
Nice to see someone appreciating videos that are precise and concise. This is the style I've been trying to cultivate too. Trouble is that YT rewards watch time and so encouraging longer videos with a load of waffle.
@@CycloneCyd Subbed 👌
@@speedkar99 My car i20 clutch sets ...disc, bearing and plate, and slave cylinder has been changed recently. After that, all working ok...pulling, shifting, etc..all ok. No complaints.
However, just about 3000km of driving since the above replacements were made, the car suddenly failed to engaged any gear while driving. The clutch pedal all the way goes to floor and never return back. I have to manually return to its original position and then pressed again repeated. However, it still sticks to the floor and never return back.
I was driving and all of sudden the issue happens. Stuck in traffic and was pull over to roadside with traffic police help.
Wait for some time, and yes, it come to engaged and disengaged again. All ok. But, the problems arise intermitently!!!
There is no physical leakage, damage or low fluids in the system. All ok. (It used to happen when clutch is used often ie in traffic jams, clutch engaged and disengaged frequently, just in 10 minutes or so. However, no issues with pulling power and no clutch slippages, temperature, coolant all ok.)
lol the best snap ring pliers ive ever seen (made me chuckle)
Haha good one
Yes haha I had to stop the video to come and find this comment lol
@@speedkar99 When I connect my brake booster hose to the plenum it doesn't start
@Croc hunter youre very observative...
Totove
Great explanation. What’s impressive in addition to your skilled explanation, is the design engineers that design these systems that we all take for granted in so many areas of modern life.
This is one of the best videos I've ever seen explaining how the brake booster and master cylinder work. I always wondered why the brake pedal would return when there was vacuum on one side only - reason it does is because there is a valve that I didn't know about equalizing the vacuum on both sides. Thanks for explaining everything and for showing (rather than just talking) about the components.
This is how a tutorial video supposed to be!!!
+Midhun Mohan thanks
Check out my other videos for more!!
Agreed, this guys videos are brilliant
When he bust out the grinder LMAO
I've learned more in this video then a month in brake classes
Just wanted to say thank you SO much! Goes without saying, but this is by far the best video on the Internet explaining the brake system and its components.
+Aleksandar Miloeski I'm glad you liked my video and found it useful.
I now fully understand automotive brake hydraulics in 7 minutes. What a time to be alive.
Glad you learned something
He is so focused on explaining everything that he never forgets mentioning whose old clothes he is using 😂 and all the time he uses his brother's old shirt, towel, underwear 🤣but i really like how he describes everything without unnecessary music,fun.just straight to the point 👍
That redundancy in the master cylinder saved my butt when merging from one highway to the other at 60mph. Brake line to the back wheels exploded at the same time.
I didn't know that until now.
Great video! Love the toothbrush!
Ouch
That system saved a lot of butts
isnt the system in the master cylinder just if one of the pistons in the master cylinder fails? wouldnt effect what happens if a brake line fails, thats down to the proportional valve? i assume if you lose your right rear you also lose your left rear but keep the front due to the proportional valve keeping them seperate for safety and mainly for brake bias. unless the two pistons in the master cylinder go to different places? one to the front and one to the rear wheels? but then there is no backup if one piston in master cylinder fails, you will lose braking at either front or rear, whereas if it works how i thought then if one piston fails you still have normal braking?
er, sorry im rambling.
Thanks. What a great, no bullshit approach to demonstrative learning. You can't not understand how a main brake cylinder works after watching that. Brilliant!
+Labrador McGraw Thanks! Short and to the point is my style! Glad you liked it.
im pretty mechanically inclined and do all my own repairs, which owning a jeep and a 96 cummins is alot, i still dont quite understand how the booster works, yes vacuum pulls on the plate and a valve allows atmospheric air in to stop the equilibrium/provide a pressure difference on each side... what i dont understand is how it doesnt just go full brakes/locked up as soon as the that pressure difference is there, it provides a pretty uniform assistance but doesnt just full lock.. okay i think i just explained it to myself, the size and of that plate and the return spring are balanced just so to give you the correct amount of assistance without overpowering the mastercylinder and making the brakes either 100% on or 100% off
i still find it weird or amazing how well it works in making the brake pedal feel so effortless throughout the entire throw and it doesnt cause jerky/spontaneous braking when you you just barely touch the pedal
Great job with your presentation! I’ve been working on my own vehicles now for 55+ years and this kind of information just was not out there when I started making repairs! Awesome!
Thank you very much for the lessons..im not the smartest rock in the quarry..so thank god for the ability to watch over....you speak too fast but none the less very informative Now when i do the job my self i understand why I'm doing what I'm doing rather than just replacing a part.
..
+Abdon Rodriguez thanks, I try to Make my videos short and to the point so people don't get bored. If you don't spread have background on some things then it might take some replaying to get thru it.
i watch on 1.5x, you can slow the video down if it is too fast. I appreciate the quickness
I think this is the best explanatory, informative RUclips I've ever seen in my life. RUclips owes you BIG MONEY for this kind of expertise in video. Well done sir!!!
This is an excellent video with concise and pointed explanation of the topic, well illustrated with the vivisection of the brake system. There is nothing unnecessary in it, no hand obscuring the view, no bloated self-indulgence, etc. I wish there would be more videos like this.
UNDERWEAR : Perfect For stopping any oil leak..
+Yathu prem it absorbs really well...for a reason
haha
best comment here! Yathu!
Give his brother some Credit 👌
I'll bet he was surprised to get those back when you were done.
Please keep making videos like this. I do all my own mechanical work and this is by-far the most clear and concise video on youtube. Thank you.
Sure I'll continue my teardown series
I agree that this may be the best teaching video I have ever seen. There is enough information crammed into 7 minutes to take me a month to process. Well done!!
Glad you appreciate the video style. Thanks
I've noticed that every time you end a video, you toss something to the ground like, "eh, whatever, this isn't an important piece." Luv it dude
My sign off
From an old man who is retired mechanic, son you are an gifted individual in mechanic and teaching. These days guys in repair shop are mostly A part changers . I have a 74 dodge and 95% of garages refused to work on it ( and the car is a slant 6 fly the simplest engine and car to work on ! ) any way it is what it is but you are standing tall amongst these leprechauns .
Thanks
I rarely comment on homemade videos because of the errors, poor explainations, and important information left out, but.... you did a great job speedkar99. As a ASE mechanic for 23 years, I found the best way to fix something is to first know how it works. You covered all the bases with clear, consise information. Your video should be a keeper for guys and gals learning the brake system. Well done.
Thanks I'm glad you appreciate and compliment my work 👍
Great explanation
+MrFireman164 thank you
Fantastic explanation! Informative and concise, with no obnoxious music overdubs or unnecessary narration! And your snap ring remover tool reference was the perfect comedic relief! Well Done!
Thanks for the kind feedback. Short and sweet is how it should be
@@speedkar99 - You're welcome!
I've been working on cars over 25 years now and have never disassembled a brake booster or a master cylinder LOL thank you!! I loved this video!!!
Glad you enjoyed it!
I've been working on my brake booster mounting and replacement for a month. Your video explains all brake components far better than anyone else's has. Great job. Very clear and no loud music to have to hear. I'll look for more of your videos. Thank you.
I learn this stuff so much easier when I can see the parts in front of me. Your videos are perfect.
Great video, man. No bullshit and straight to the point. Thank-you.
That's my style!
@@speedkar99 My car i20 clutch sets ...disc, bearing and plate, and slave cylinder has been changed recently. After that, all working ok...pulling, shifting, etc..all ok. No complaints.
However, just about 3000km of driving since the above replacements were made, the car suddenly failed to engaged any gear while driving. The clutch pedal all the way goes to floor and never return back. I have to manually return to its original position and then pressed again repeated. However, it still sticks to the floor and never return back.
I was driving and all of sudden the issue happens. Stuck in traffic and was pull over to roadside with traffic police help.
Wait for some time, and yes, it come to engaged and disengaged again. All ok. But, the problems arise intermitently!!!
There is no physical leakage, damage or low fluids in the system. All ok. (It used to happen when clutch is used often ie in traffic jams, clutch engaged and disengaged frequently, just in 10 minutes or so. However, no issues with pulling power and no clutch slippages, temperature, coolant all ok.
Out of all the tools in my garage for the last 21 years the one I don't have is my brother's old underwear 🤣 That bit of humor earned my subscription
But that's the most essential
This should be the tutorial on how ro make tutorials.Pay attention other You Tubers.Perfect, clear spoken,detailed,no extra bs and traight to the point.
I can't say I'll remember everything, but these are the clearest explanations I've seen! As others said, you're a natural at this. Thanks!
You are welcome
Very well done. Straight, to the point and very good efficient and accurate explanations for everything, mixed with subtle humor. The best by far I've ever seen on RUclips!
Glad you enjoy my work! Thanks
I hope you are an instructor at a school, because you are great at making things easy to understand!
+John Oliger thanks. A lot of people say that about me. But I think I'd be too nervous in front of a crowd. I have more confidence in front of the camera where I can edit things.
@@speedkar99 ha ha me too. Even so, after I've edited I junk about 90% of what I filmed.
Have to agree with some of the other comments, great explanation, no bull, no long intro and a very good explanation. Great job!
That's my style! Thanks
simple explanation with simple breakdown of actual parts, just the things you need to know and nothing else. keep up the good job bro, you simply rock!
Glad you like it! Thanks
Thank you. I've replaced literaly dozens of these things since the 70s' in my cars, but I've never had the inclination to cut one of them apart. KUDOS!
You are welcome
I wish you would explain everything in my life! Great commentary!
+Lance Hamilton Life is something I'm not nearly as experienced in...
Nice snapring pliers!
+MrCube17 gotta love them. Universal tool for tools you don't have
😢😓☺😂😂😂🚶
You managed to take something that could have been dry and boring and explained it possibly, quickly, and in a very entertaining manner. I laughed out loud a few times, and learned a bunch. Fantastic!
This solves the problem for many. Thank you for such detailed explaination. I can easily say, this is the best video on Power Brakes on youtube.
Thanks I am glad it helped you and many others understand
Great explanation. I love the pace. No waffle just fact after fact. Time well spent. Thanks.
You are welcome
Love your unique pointer and special tool... Thanks!
+Rick T haha
Yea my pointer is pointy indeed :)
Well Done!!
+Paul Wehbe thanks Paul
@@speedkar99 My car i20 clutch sets ...disc, bearing and plate, and slave cylinder has been changed recently. After that, all working ok...pulling, shifting, etc..all ok. No complaints.
However, just about 3000km of driving since the above replacements were made, the car suddenly failed to engaged any gear while driving. The clutch pedal all the way goes to floor and never return back. I have to manually return to its original position and then pressed again repeated. However, it still sticks to the floor and never return back.
I was driving and all of sudden the issue happens. Stuck in traffic and was pull over to roadside with traffic police help.
Wait for some time, and yes, it come to engaged and disengaged again. All ok. But, the problems arise intermitently!!!
There is no physical leakage, damage or low fluids in the system. All ok. (It used to happen when clutch is used often ie in traffic jams, clutch engaged and disengaged frequently, just in 10 minutes or so. However, no issues with pulling power and no clutch slippages, temperature, coolant all ok.)
I wish everything in my life was this to-the-point
This is how tutorials are supposed to be. Thanks, man. You are gifted on explaining things fast and easy.
Im learning serious mechanic work here in U-tube, and all you guys are teaching us all so we have no excuse now on how to fix our own Automobile, It took me over 6 month to change an automatic 4×4 mazda 1991 to a manual trans," but I did it, learning here from you guys in U-tube. Thank you , Keep loving thy neighbor,👍😇
Thank you for this video--I learned a lot. Your channel is truly a hidden gem, and you deserve way more subscribers!
Thanks so much for your kind feedback I appreciate it. Please share to those in your network so they can learn too!
Man excellent job explaining. Very detailed. All around great video!!
Thank you
Thank you! That is the nicest, tightest, explanation video I've witnessed
I've watched quite a few videos on this subject trying to understand it completely, but was still a bit sketchy. This single video has made everything completely clear in one hit. What a superb video. Thank you!!! 👍👍👏
Love the snap ring joke and you are the only one that I have ever seen put so much into a small amount of time with enough detail to where we non mechanics can jump in there and actually know what’s going on with everything in that area..... let me just put it this away.... my intelligence just jumped 90% on the area I needed to know about, thanks, your new subscriber and supporter.
man i really like your videos, best stuff explaining mechanics by opening them up. great job you deserve more subs!
I hope to grow in the future. Thanks and please share
Toothbrush 👏
+KennyTheFoxySFM1 - FNAF and MC new toothbrush
Underwear lolll
Lol right
Great video mate! Absolutely well explained and straight to the point.
Thanks
Thank you, I'm loosing brake fluid in a 60 Buick that has not been driven for 10+ years.No obvious leaks at any of the corners. I have a little more knowledge now thanks to you. I will start by replacing the master cylinder, draining all the fluid, refilling the fluid, and bleeding and go from there.
Check all the lines underneath. They're likely rusted
@@speedkar99 thank you for your reply and info. I will probably be crawling under it this weekend looking for clues.
I LOL'd at your "snap ring pliers". Been replacing brake boosters for 30 years and never seen the insides. Nice!
Wonderful information Bro. Thanks a ton.
You are welcome
That was insanley informative
+Matt'smobile AutoRepair short and to the point is my style. Check out my other videos for more like this
Once again you deserve more subscribers
+mr Canadian I wish but not everyone wants to see this kind of stuff
Bravo. This guy explaining the functions of the brake booster and brake master and how they work together is really really smart. He not only has mastery over theory but also the mechanics of the the brake system. Would like to learn more from this guy.
Thanks. My channel has alot of teardown videos like this, check it out!
Great Video! No stupid music in the back ground, clear and to the point. Thank you! I will be watching a lot more of your videos!
That's my style! Enjoy
This guy is amazing explaining how things work waooo
+Luis Abreu thanks!
@@speedkar99 My car i20 clutch sets ...disc, bearing and plate, and slave cylinder has been changed recently. After that, all working ok...pulling, shifting, etc..all ok. No complaints.
However, just about 3000km of driving since the above replacements were made, the car suddenly failed to engaged any gear while driving. The clutch pedal all the way goes to floor and never return back. I have to manually return to its original position and then pressed again repeated. However, it still sticks to the floor and never return back.
I was driving and all of sudden the issue happens. Stuck in traffic and was pull over to roadside with traffic police help.
Wait for some time, and yes, it come to engaged and disengaged again. All ok. But, the problems arise intermitently!!!
There is no physical leakage, damage or low fluids in the system. All ok. (It used to happen when clutch is used often ie in traffic jams, clutch engaged and disengaged frequently, just in 10 minutes or so. However, no issues with pulling power and no clutch slippages, temperature, coolant all ok.)
Can you teach us how a clutch pedal connects to the clutch.
+MaximumJonathanosity I wish I had a manual tranny car. This one Is auto
Yeah, I figured. Thanks for all the other videos though.
Considering you already know the components, basically, the pedal is attached the same way leverage wise as the brake pedal, except its hooked up to the master cylander that hydraulically sends brake fluid to the slave cylander which has a piston that pushes against the throwout bearing which spins/pushes against the fins on the pressure plate, releasing the clutch. Lol
+Matt'smobile AutoRepair good explanation but this would be even better if it was presented visually
speedkar99 agreed!
thanks for your demonstration
+Ryan Fikri glad you enjoyed it
You know the guy is good when after he is done, you have no questions because everything was well explained!
Such fun, seeing all those internal bits!
It sure is fun!
Theres nothing to a brake booster. I once repaired a new porsche and the booster was dented. i was quoted $4000 for a new one. I took it to a brake specialist and he said it can not be repaired. So i took it home undone the tabs that hold it together and repaired the dent, put it on it worked like a new one. Plus it only took me half an hour!
+Jarno Saarinen So your booster wasn't laminated eh?
Porsche booster ain't no 4000 dollars.
Nice video! Very informative. Toothbrush always cracks me up. And brother's old chones is classic. lol
+scooby95219 thanks. Glad you learned something. Did you notice the toothbrush is new ?
I had to go back and watch the other video. Your brother's toothbrush was green and very used. This one is orange and new. lol
+scooby95219 Technically this brush is "used". If it was new I would have used it myself lol
You're lucky those weren't my brother's underwear...
+ScubaCat3 why's that ?
Think he got his ass kicked a lot by his brother lol
@@rmblwgn No I think his brother soiled his underwear something nasty lol.
No with Lock down they Can get up and walk away by themselves......
Whats that smell, oh man I thought them was washed.
This guy is good. Very good running commentary. I got a lot more info on this topic than all the dozens of online research I have done on brake boosters and accessories. I will check out your other postings.
Thanks
It's so great to have someone to accurately explain mechanics. Thanks for the great vid!
Genius genius genius!
+ilj5000 I sure am thanks
4:32 the vaccum proportion, i never understood, why we need vaccum? the brake system is totally manual according to my research
+G H the vacuum creates pressure differential.
That helps to push the big diaphragm which helps pushing the piston
it mean if we disconnect the hose, than we are unable to use the brake?
it is in the name, brake "BOOSTER"
picture an 80yr old lady weighing 130LB and driving a fully loaded chevy tahoe. do you think it will be easy for her to stop the vehicle without a vacuum assisted brake? hard as fuck
you'll understand why when your brake booster goes bad. that light tap you use to stop you car will become a fatigued foot muscle after a long drive. your foot will actually be doing the work.
my question is stil there, if we disconnect the hose, than we are unable to use the brake?
I never leave comments, but you deserve one. Although your explanations were fast, you are very detailed in your explanations and made it extremely easy to learn something new. I had to subscribe. Thank you for being so thorough and detailed! A true teacher and engineer!
I'm glad you appreciate my work and teaching style
Straight to the point, no fancy words, explained everything...Perfect!
That's my style! Thanks
this feels just like an anatomy professor dissecting through a cadaver. excellent presentation and love the subtle humor (whether it was intentional or not)
You would make a great public speaker! Excellent video and a solid presentation. I love it when someone can articulate their teachings by not using speech disfluency, (any of various breaks, irregularities, ... "um" or "em", "uh" or "eh", "euh", "äh") Bravo!
That's my style. Short and sweet
Oh man that snap ring pliers gag had me rolling.
Love my grinder
Excellent. Right to the point. No nonsense, no 1 minute intro, just pure info. I wish more RUclips videos were like this
Agreed. That's how it should be
Who needs Haynes Manuals when you have this guy.. A+
Thanks! I love learning new things like this
If you are a highly paid instructor... you ott to be. That was the very best display and explanation I have ever heard. Tell your boss I demand you get a raise in pay. Thanks for the great job. 👍🍻
No necessary BS, straight explanation, I like it!
That's my style. Thanks
This has to be one of the best if not the best explanation of any mechanical device I’ve seen on RUclips yet. What an excellent tutorial, good work man!!
Thank you very much! Just pulled the brake booster yesterday out of the Infiniti G35....gonna have another video like this up soon!
Great video. Amazing how basic physical mechanics were used to invent such a crucial system in car history!
The best description and function tutorial ever ! The best videos are made without adds and crap music.
Fellas this how you teach. Simple, clear and delicious English! Outstanding👌
Thanks
Fantastic! I was working on the brakes on my car and was wondering how the brake booster actually worked. Best answer ever. TY!
Glad this helped you decipher that
That is the way to do an informative video.
You are quick, easy to follow and stick to the facts we want to know at a good pace.
And the best part:
* No unnecessary and obnoxious background music that's always too loud.
* No rambling on about all kinds of details no one wants to hear about your life, dog, how great you are etc....
* No long, slow boring and usually inaccurate explanations.
Excellent pointer
Please keep up the great work
Awesome stuff
Thanks
Excellent video !!! This is the ultimate video on how the brake pedal, brake booster , and brake master cylinder works. [2020]
Thanks. Check out my newest braking system video for a more thorough look at the parts in the system
OMG! Wow! CLEAR, concise and without bothersome ANYTHING! You need to go to the HEAD OF THE CLASS!!
It would be awesome to be a teacher one day...hmm
didn't expect to understand the the whole mechanism with just 1 youtube video, in 7 minutes no less, thanks !