How Shock Absorbers and Struts Work
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- Опубликовано: 7 сен 2024
- Here's how the shock absorbers or struts work to keep the wheel on the road in your car.
The weight of a car is supported by suspension coil springs. When you hit a bump, that coil spring compresses, absorbing the impact of that bump. However, the coil stores that energy and releases it, and left undamped, can cause for a bouncy uncontrollable ride.
Enter the damper, which is responsible for controlling and limiting the bounce of the spring to maintain proper tire contact and comfort. It consists of a piston that retracts and expands with suspension travel. Inside the piston are valves that control the flow of oil through orifice holes. Thus the velocity of the piston is controlled through the oil flow, causing a dampening effect.
This video grinds open and breaks down a strut from a 2001 Toyota Corolla. It explains the major components of the strut and its function as part of the entire strut assembly and the vehicle in a mass-spring-damper type system.
The strut consists of the piston, piston valve, pressure tube where the oil pressure is built, a base valve at the bottom of the cylinder, and a reserve chamber outside the cylinder in the housing of the body of the strut. When the piston compresses, oil flows through both valves at varying rates - depending on the shock tuning. Each valve can be individually tuned to control compression and extension of the piston independently.
Shocks vs Struts: In this video the term shocks and struts are used interchangeably since the focus is on the damper portion of the suspension. Struts are the complete assembly when a coil is placed over a damper, while shocks are a separate damper with the coil spring (or leaf spring) placed separately on another part of the suspension.
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The term shocks and struts are used interchangeably in this video because the focus is mostly on the damper. Struts are the damper and the spring mounted together as an assembly, while shocks are the damper itself, with the spring mounted separately on the suspension.
speedkar99 Well, yes and no. Damper and spring together, as a unit, is a coilover and it only works in up and down plane, doing tension and compression. Strut does the same, but can also take lateral force from the wheel.
+pancakewsx thanks for that clarification
Thanks bro your videos are so helpful for learn about cars keep going.👍👍👍
Pls detail Valve working mechanism
You are the smartest car expert ive come acrooss, youre explanations are flawless as well.
+J Brown thanks for the kind feedback :)
You are a real teacher master tired from the class , just teaching as quickly as possible and you move out awesome !
Thanks! Short and to the point is my style
Just discovered your channel. I am the CTO of a large firm selling parts for automotive. I am learning a lot with you better than anyone has ever explained. The combination of practicality plus some theory is amazingly well done. Congrats from France !
Glad to hear, thanks
What a great compliment. It's true , you're chingon
My Dear Mr, speedkar99, I have been an Automotive Tech for over 40 years. I do the same as you do. First I learn about the engineering theory of an automotive component and I then take the component apart so that I can see the visual with my own eyes. I have to see for myself what is inside so that I can fully understand how it works. Like a team of engineers inspecting their final work before submitting it for production. I find that I can diagnose issues with cars better that way while performing my job. As Automotive Techs we replace parts everyday as routine. We sense that the suspect parts are worn or they have an issue. Being an Automotive Tech is a Zen for sure. :)
+bobdadruma thanks, that's how I learn too, some theroy and practical experience
if you learn theory only your inferior will underestimate you
Wow. What a great video man! This was super good, simple language, super informative. I have replaced many struts and am very mechanical, but I underestimated what all was going on inside a normal simple strut. Thanks so much for making this video!
Good day from Waterloo Now we are using your bro's underware , boy we are scraping the bottom of barrel LOL Thanks Good info
Good day from Mississauga
The 24 dislikes are from mechanics that don't want us to know how parts of our cars work. Thanks for the explanation👍
Or those who don't understand.... thanks!
You're an awesome teacher. You break it down to where I a woman can understand it! Thanks
I'd like to take my shocks apart, but my brother lives on the other side of the country, and I don't know if he would mail me his underwear. Seriously, very good combination of theory and hands-on for an excellent explanation. And nobody can accuse you of talking too slow.
+Mi Na thanks
Short and to the point is my style!
And Yea if you can't find your brothers underwear, find someone else you don't like and steal thiers!
I discovered your channel when i was looking for a video explaining changing the rear struts on my Lexus. Your video covered the Camry and the detail you shared (especially when it came to removing the back seat) made the job quite doable for this DIYer. Thanks as always for the detail you include in your videos.
+Tripp M I'm glad you enjoy my videos, and find them helpful. Check out my other videos for more :)
Can we start a GoFundMe to buy your brother some new shit. I feel kinda bad for him. U take all his stuff. LOL
+Hugh Jafro that's a good idea. The stuff he wears sometimes...
I will be glad to send him a new toothbrush!
I am sorry I forgot to mention you are a marvelous teacher, you remind me of Chris fix
Thank you sir, great explanation on shock absorber n hence saving tires.
EXCELLENT demo... quick and to the point.
Thanks that's my style!
I like the way you get into the details on the way things work in the system,Yo don't leave anything out,THANKS
Thanks, I try to be complete and concise
Great video, im glad you took a break in the middle of brushing your teeth to show us how a strut works.
Haha good one.
Practical guide to the subject...
Excellent..👌👌👌👌👌
Practical is the easiest way to learn
Are you a genius? Are you a mechanical engineer that understands the inner workings of every single car part?
👍 well explained compare to other vid I have seen, thanks for taking into detailed
You are welcome
Like your channel. Keep on the great work.
+郭永安 thanks
Dude... wow. Thank you. Beautiful video.
You are welcome
great videos.educational and non confusing explaination
Thanks. What more would you like to see?
Very well explained both theory and practice 💯/💯
Thanks
I've seen a few of your videos now and wow you have so much knowledge. How do you know so much about cars/mechanical engineering? What is your educational background? It's all very impressive, just subscribed!
+Andrew Chun I'm glad you enjoy my work. I have a mechanical engineering background, but we didn't learn this in school. I learn by taking things apart and seeing for myself, I don't think you can get a better explanation from any book or class :)
Very respectable. I definitely see your channel blowing up in the future!
incredible video thank you
You are something else sir
Thanks
Great video man love from India 🇮🇳 haha And sry for your brother
Wow Great explanation. Thanks a lot. It really helped me.
Welcome
Really good explanation man...
My tires are runing bad and noisy for shure need newones.
+Don Nato Yea bad struts will cause tire cupping
great video as usual
Thank you very much
Cool. Dealer says i have a damaged strut/shock absorber within a Loaded strut assembly that has a spring a strut/shock absorber and the mount and bearings .. Loaded strut is 4 parts that my toyota dealer will need to replace seperately and takes a special machine to compress the coil/spring in order to maintemance. Anyway.. They want 800 bucks to replace the front two but i found a good condition loaded strut assembly for 60 bux amd will just replace the whole damaged loaded strut myself and save 730 bux.. Hopefully my allignment will be ok.
Yep sounds like the right way to go
Can the shock in this video, be disassembled, have the valves adjusted, and be reassembled?
Thank you...
Hi speedkar, how true is the claim that there are manual struts and there are automatic struts. The automatic, when the piston rod is pressed, comes back up due to pressure within the tube. The manual on the other hand, the piston rod doesnt come up by itself when pressed; claim is that you have to pull the rod up with your hand
Can these type of shocks that have been laminated be rebuilt?
Is ISO 46 grade oil better for the front shocks than 32 grade oil ,of course we use 32 any for rear shocks, mine is a Etios sedan from Toyota.
ever heard of one getting water inside ? i have one that has absolutely no give in freezing weather , but works in warmer weather .
where to find the nitrogen gas filling adapter
Very good video! Out of curiosity, can they be maintained, if all the manufacturing tools provided?
what is the name of this shock absorber ? for which car
At around 1:25, what do you mean by laminated?
Can I drill a hole in the side of my strut housing and add more oil to restore lost damping?
How are you going to plug it against all that pressure?
@@speedkar99 I don't know. Is the reservoir area pressurized too?
Excellent video. Yesterday, Honda told me I needed new struts because they were "leaking and weak." Today I looked at the struts. There is no visible leaking at all. I emailed the service writer at Honda and he said, "LEAKAGE IS NOT FLUID ON A STRUT
. ITS A HYDRAULIC PART AND SO THEY GET WEAK/WORN AND LOOSE FROM AGE." Does that make any sense?? It sounds like mumbo jumbo. To say "leakage is not fluid on a strut" makes no sense to me. I can find lots of videos and photos of leaking oil on struts.
Hi there. I was wondering if the strut shaft is strong enough to use it as an axle to mount wheels on my generator. Thanks
No I don't think so. It's meant to compress not bend
Well explained thank you...
Gas filled or oil filled which one is better, is it okay to replace only single side strut?
+Jithin P V You should replace them in pairs for the same reason you replace tires in pairs.
Gas and fluid filled give different responses, not that one is better than the other.
speedkar99 Thank you
Can a bad shock cause a clunk noise? I have the clunk noise and could not find the cause. It is heard when over any pumps.
Please check your lower ball joint for excessive play. A clunking noise is it's too loose in the socket.please dont try to check it yourself as the weight of the car may drop of your jack slips. The correct way is Jack up your car with the wheel making just an inch and half above the ground, please dont remove the wheel, keep some strong man to lift the wheel by putting a L spanner length wise between the wheel and the ground and lift it up and keep watching the lower ball joint from beneath ,you will notice the ball of the ball joint is loose in the socket. Screeching noises are common from the shock absorber bearing not clunking, secondly check the outer tie rod end it will also move similarly in the socket but you must remove the cotter pin and check play, for which you may have to remove the front wheel, but to check for a worn out inner tie rod end you can check it by removing the wheel and pushing the tie toe assembly back and forth you will hear a clunking noise if it's excessively worn out, you can also check it without removing the wheel by just jacking it clearing ground surface contact and getting hold of the wheel in 9 o clock and 3 o clock position and pulling and pushing them alternatively, in other words when pulling at 3 o'clock push at 9 o'clock when pulling at 9 o clock push at 3 o'clock position if you hear a clunking noise it's a worn out inner tie rod end.
Is it okay if the strut rod spins a bit when tightening the nut to the strut mount, or does the rod spinning inside the strut cause damage?
Can we rebuild it
Are you an engineer..your good
+Pg Betita yes I'm a mechanical engineer
Every time I hear Dust Boot, I thought of Das Boot
is shock absrober the samething as a energy absrober. Because my needs a energy absrober.
+chris johnson energy absorber is for the bumper, it's different
I'm staring at the toothbrush duing the entire video....
+Viktor Lu no no, this video is about struts
you better had add an on the tune at yourself, that said wonderful
Nice teehbrush
+shahrul a thanks but that's not the focus of the video haha
titbrush
you talk too fast. please slow your pace . . thank you for the video
I try not to waste time. You can slow down playback speed
So a Strut is: A Twin Tube without gas, but a spring to compensate for the lack of gas; hmmm interesting
👍👍👍
hey, that looks like your brother's toothbrush!!!
And brother's underwear too 😂😂😂
Better to rebuild or buy a new one of shock absorber
+Ehab Shady Buy a new one. The lamination is difficult to replicate.
speedkar99 thanks for reply
this time, you throw away the toothbrush. XD
+Chen Eric haha
That toothbrush gets a ride for it's life
he compels one to pay attention or miss the boat...
Exactly!
Hey you know this is totally wrong because on my car the struts work by rattling like a coffee can full of marbles and doing nothing to stop the back end of the car from bouncing around like a ping pong ball!
+John Haha maybe yours has marbles inside the shock towers
Your mother wants her toothbrush back lol
Haha
It Look Like Tire and wheel Spring
You didn't explain nothing about the mount and how it fails 😢
True. Those bushings go bad and make knocking sounds all the time
@speedkar99 so the center nut has no purpose anymore after putting the strut in the car right? It's just to keep the strut together before putting it to the car, correct? Can you make video on this please. I been searching the Internet and couldn't find much on them
Like where the knocking sound coming from? What metal on what metal is knocking?
Use my brother underwear here.hahaha
👏👏👏👏👏👏
Underwear😂😂😂
Using what I have for oily situations
your brothers undies yes