How a Hydraulic Steering Rack Works

[@jadefalcon001]

I NEVER knew how this worked!! You have the BEST way of describing how things work. Almost too quick, but fast enough to not lose people like me with short attention spans. Brilliantly done!

[@speedkar99]

Thanks very much for your feedback! I didn't know myself before cutting it open to find out.

[@billgateskilledmyuncle23]

The most amazing thing about power steering to me is the simple fact that they always tend to be so reliable. Even when they do go out it usually takes a long time.

[@rochamds]

Man, you are the best! Came in knowing nothing about steering and left knowing something! Amazing crash course! Thank you so much!

[@bvanderveen]

Exactly the tear-down I was looking for! Thanks for going into detail about the torsion bar and showing the diagram of the fluid flow.

[@speedkar99]

Glad it helped. I too had to sit there and figure it out myself, it's hard to understand but not seeing the real thing.

[@chelle315]

This is hands down THE best explanation of a rack and pinion that I've ever seen!!! Great job sir!

[@speedkar99]

You are welcome

[@mathew5956]

i love how now you can learn more on youtube than you can in any class

[@speedkar99]

Sadly it's true

[@aam77]

Love how you explain things so plainly in your videos with toothbrush and all.

[@speedkar99]

+Abdullah Al-Munim Thanks - I guess alot of people like my style

[@funtodovr5501]

The best video explaining how hydraulic power steering works around steering column centre position. This is amazing.

[@speedkar99]

Thanks!

[@nickcautrell2514]

Been a mechanic for pushing 30 years now. Always had a pretty good understanding of what's going on inside a rack even though I never had one fully apart. This was a good video. In addition to being very informative, it was also good instructional lesson on how to use the proper tool for the job.

[@socks2441]

iraq, lol. i never understood what was going on inside iraq either.

[@nickcautrell2514]

@@socks2441 stupid talk to text lol

[@Joystickoperator]

I have been a mechanic 20 yrs now. Just discovered your channel.And you do a great simple job of explaining.

[@speedkar99]

Thanks, it's good to hear that from a mechanic

[@shaggydogg3786]

I retired from a Ford dealership. In old days we had to reseal power racks... I got really fast at it after doing a few. Great video and great explanation on the torsion bar input shaft.

[@speedkar99]

Thanks. The rotary valve is quite something!

[@pjmiguel9443]

I'm sold, straight forward explanation, 8 min vid of your vid is typically 15-20 min from the other guys without the extra movements and talking. Love the dirty toothbrush pointer.

[@speedkar99]

+Pj Miguel thanks. Cut the waste and get to the point!

[@sageshockley7725]

Your a great teacher. Your English is awesome. You are the first person that don't say "um" between words. I can really understand your video. Specially with your details description on each components and it's purpose. .

[@speedkar99]

Thanks I'm glad you appreciate it, I edit out all those things and make my video straight and to the point

[@hugieflhr03]

Nice detailed video and cutting everything open really brings these systems functions home! Great job

[@Mountain-Man-3000]

I've been learning everything I can about cars for 15 years and never knew this. I had no idea that power steering was so complex. Thanks for making such a great video!

[@speedkar99]

+MoutainMan3000 thanks, your right, the rotary valve is quite something.

[@jeffskingley6042]

Excellent! Finally!!! Somebody who moves quickly through an explanation and doesn’t waste time with an unrehearsed video. Thank you.

[@speedkar99]

Thanks Short and to the point is my style

[@nickflopper]

You deserve more subcribers.

[@speedkar99]

+mr Canadian I do, but where are they?

[@EddyGurge]

I'm not even a car guy, but I find this amazing. I now understand a bit about power steering. Very cool!

[@FunAndEZ]

speedkar99 I’m with Eddy. I’m not really a car guy but your videos are incredible. I watch a lot of videos on how things work and this is some of the best stuff I’ve seen regardless of subject matter

[@zioneddolls7219]

These videos are amazing! lol I love the humor it amazing... and the toothbrush hahahaha I literally can't stop laughing but i'm trying not to because the information is so good.. well done explaining something that is very technically complex in such a digestible manner. Your videos are great keep up the good work.

[@Tommyz125]

The explanation of the control valve is perfect !! A1

[@jessehickman668]

Holy pepperoni power steering is more complicated than I expected. The genius of the torsion bar system is truly amazing that someone designed that decades ago. My tacomas pump is whining and in a few hours I coulda been fixing it I spent learning the exact way the system works. Quite fulfilling to learn. Thanks

[@Nino_J]

Another gem of a video..thank you sir Plus the famous toothbrush 👍🏾

[@speedkar99]

+AccessDenied thanks. Glad you learned something

[@jwc3104]

I worked in TRW, one of the largest steering gear manufacturer in the world, for 20 years working on the hydraulic steering gear. Your explanation is THE best I've seen on the Internet. I don't think some of my colleagues at work couldn't explain it as well as you did. I don't know where you got your training but this video is A+. VERY WELL DONE. IMPRESSIVE! One additional info if I may... at 6:40 where you explain the inner workings of the valve... the "slots" you see on the input shaft has really tiny chamfers along the edge, called "metering edge" which is ground to micron precision, give you a precise amount of assist proportional to the "relative twist" of the input shaft and pinion. That "metering edge" is the heart of the hydraulic power steering system.

[@speedkar99]

Wow thanks very much for that information and feedback, it makes sense that that controls the sensitivity. I would love to work in tier1 or OE one day!

[@yilancio]

LMAO @ "NEXT I'M GOING TO USE MY 19MM HEXAGON SOCKET"!!!!!!

[@speedkar99]

+asdflkjh yep, I didn't have the right size so I choose the next size up :)

[@michaelmace924]

speedkar99 where can I get a 19.3 mm socket?

[@LogicofChaos7871]

AKA the angle gringer and suicide wheel

[@waxxy8447]

I know, right? Funny as hell

[@davewolf8869]

"Next size up" LOL Nice!

[@paulobrien9085]

Sir, you make great videos. Solid information all the time and without all the chatty bullshit that 99.9% of videos have.

[@adamfredell8204]

Excellent videos. You sir, gave me the courage and instruction to perform a complete timing belt and water pump service on my 1MZ-FE V6. So... thank you! I saved over $1500 that I would have spent at my Lexus dealer.

[@speedkar99]

+Adam Fredell I'm glad you learned how to change your belt. Check out my other videos for more

[@Tom_239]

Exemplary video. The explanation is clear and direct and doesn't waste the viewers time. Great work.

[@speedkar99]

Thanks for the fantastic feedback

[@germaineliew2012]

For some reason, I like to watch this channel more than other car related channels. Don't know why.

[@Yathuprem]

Ur a natural engineer then..

[@speedkar99]

+Yathu prem I sure am a natural engineer

[@martinevan4237]

I like this channel too. It's pretty great.

[@Yathuprem]

+speedkar99 Hell you are.. ur the best.. Long time i've been thinking?? where do u get this name for the channel??

[@THEYOUSEF92]

speedkar99 ✋السلام عليكم ورحمة اللّه وبركاته 🌹🌹اخي العزيز شكرا لك بماتقوم به من مجهود وعمل وتصوير فقد استفدت كثيرا منك واقدر ذلك وانا من المتابعين لك ادعو الله ان يرزقك الصحه والعافيه وكل خير تتمناه وان يبعد عنك كل مكروه اللهم امين تحياتي اليك بحفظ الله💜

[@akhtarkh]

One of the best explanations of rotary control valve operations. Many youtubers skip that part bcz they don't understand themselves the operation and importance of this part as the heart of power steering system.

[@speedkar99]

That I'm glad you appreciate my work

[@shashauk1]

You sir are amazing. Respect goes to whole different level when you explained the inefficiency of hydraulic steering. That’s insightful :)

[@speedkar99]

Thanks allot That's right Hydraulic pumps fluid regardless of what the steering is doing

[@ruukasu71]

I am a student at universal technical institute and this is far more helpful than what I've been learning in class. thank you and keep doing what your doing

[@speedkar99]

Thanks, the best way to learn is by practical experience

[@D_Town_Throwdown]

Awesome video!! I just found your channel and i think we’re similar in the sense that we’re very “resourceful” when we work on our machines and we aren’t afraid to tear them apart to see whats inside. Thats the best part about working on cars. There are so many parts working together and they’re all fascinating. i try to impart that enjoyment on friends when they get work out of me but it takes a specific person to understand and care about whats going on instead of just mindlessly throwing parts at a car to fix a problem - or worse yet, taking it to the dealer for something that otherwise would cost no more than the parts themselves, a morning or two on a weekend, and a pair of dirty hands.

[@speedkar99]

+Martin Mankins agreed. In fact this project has given me so much more confidence working around cars now, as I know the inner workings of them.

[@ProBroDougB]

As a former rack and pinion steering engineer for an OEM, I commend you for your explanation. Very well done. The only correction is that the steering fluid flows thru precision metered lands on the edges of the slots in the input shaft.

[@speedkar99]

Thanks! Yeah that rotary valve is really something

[@abugalib612]

Dude u cool, the way you dismantle or cut the parts seriously amazing. i also belong to mechanical field and hence i love your videos. keep going bro.

[@speedkar99]

+Abu Galib Glad you appreciate my work

[@labradormcgraw2409]

This guy really knows his stuff. This is the clearest video on power steering I've seen. Once you get past that toothbrush, these videos are worth their weight in gold.

[@speedkar99]

+Labrador McGraw haha thanks!

[@viciousocean]

if you ever loose you power steering like I did, you will appreciate this video a lot!!!

[@speedkar99]

+viciousocean yes

[@JohnJones1987]

Actually he said it was loose and in need of tightening xD

[@RrRr-th1kf]

speedkar99 is it better to reseal rack steeting with new seals kit or replace it with new OEM ???

[@michaelkempton1652]

Finally! A video that explains how the directional control valve works! Thank you!

[@speedkar99]

Right!! I was doing research and had to tear it apart myself just to find out

[@kalpitkatpara2720]

Awesome explanation sir. Great work!

[@speedkar99]

+kalpit katpara thank you

[@gorinator]

I can't thank you enough for the fast pace and high info density. When I'm looking for this kind of video, it's usually because I'm in the middle of a repair and I'm stuck. On most channels I end up watching at 2x speed just to get to the info I'm looking for. Thank you for taking the time to research, plan, disassemble, film, and edit!

[@speedkar99]

I'm glad my video helped you understand and learn, check out the rest of my channel for more!

[@dugzal1118]

ft. "the toothbrush of automotive wisdom" 👌😊

[@speedkar99]

Best professor ever

[@trueopsimath]

I've always scratched my head at how power steering works, even after getting so-called explanations. This video is the first COMPLETE explanation I've seen. Thank you for making it.

[@chiil034]

50 dislikes were all dentists.

[@nvqsregion1021]

due to the dirty toothbrush?

[@bartholomewchuzzlewit4356]

Yes, I don't know what there is not to like about this video, why would you even watch it if it is not to your liking or interest is beyond me? There are plenty of weirdos out there.

[@condor5635]

Yes anti-dentites as Kramer would call them.

[@maccaberry1041]

This is a fantastic description of how power steering works. Even a complete amateur like me could understand it all first time round.. You are a brilliant teacher.

[@colinlyne1660]

fantastic video mate

[@speedkar99]

+colin Lyne thanks mate

[@tomd5678]

colin Lyne really good demonstration

[@KaiDidumaNx]

no silly animations, no drawings, no bullshit talk in front of camera- we need more people do this stuff. Good job

[@speedkar99]

+Aivaras Sutkus learn by experience. That's my style.

[@LJT9393]

*His Brother:* “Yes! New socks and underwear hell yea!” *Speedkar:* “Yea, new rags!”

[@speedkar99]

Pretty much me

[@ojofelixnm3608]

Good, precise and cogent description of how rack&pinion assembly works without being over technical. Thanks 99.

[@speedkar99]

Glad you enjoyed it

[@thomasbarlow4223]

DO NOT EVER STOP using your brothers underware/socks for rags. Its your trademark.

[@afzaalkhan.m]

Disgusting

[@jules4soni]

You have given a very articulate clear description of this steering rack. You are a very gifted man. Thankyou, very much appreciate.

[@ameranyo3220]

thanks for this information very helpfull

[@speedkar99]

+amera nyo your welcome amera

[@kingstonhernandez6930]

Amera Nyo is the oil seal mentioned at 2:33 able to be replaced alone without removing the entire rack and reseal the entire rack?

[@wellstuffedup]

Mechanic for 30 years, always learning, great video, brilliant channel, keep up good work. Appreciated over in London Uk

[@speedkar99]

+wellstuffedup thank you, it's great to hear that from a mechanic

[@saurabhsharma-ts6ky]

keep it up i like your efforts

[@speedkar99]

+saurabh sharma thanks for the appreciation

[@drbendaroo9610]

Just replaced 2 racks in my truck because of defects in rebuilding process, someone be was sleeping on the job... Thanks for the education in how racks work! I'm subbed!!

[@baskorotejo92]

your brother will be missing his socks....

[@speedkar99]

+baskoro tejo See my latest video where he makes a barefoot appearance pumping brakes.

[@miami1393]

ew.. dude, you also use his underwear, he wouldn't be making an appearance holding the seat down right? I bet you're Latin, Latin moms use old underwear as cleaning rags. represent La Raza! LOL.

[@countdown2xstacy]

Nobody explains car mechanics better than this guy. The absolute best.

[@Chewychaca]

nobody: speedkar: I'm about to end this steering rack's whole career

[@speedkar99]

Yep! Angle grinder time!

[@jeffchapman8992]

WOW ... the best (thorough and concise) explanation and demonstration of how a power steering (rack and pinion hydraulic) system actually works ! Bravo and thank you very much.

[@speedkar99]

You are welcome

[@midhun-007]

Great explanation. But I have a doubt, what did you do with your brother for all those underwears and socks 😁😁😁

[@speedkar99]

+Midhun Mohan I didn't do anything. What he doesn't know won't hurt him, right?

[@midhun-007]

You are the best! 🤣

[@fromjesse]

That's a really great video. One more bit of information: The control valve actually lets the steering pump free-wheel by letting the fluid flow easily from input to output when you're not using the steering wheel, so it's not all that in-efficient. It doesn't put much load on the engine until you begin to turn the steering wheel, and the control valve then blocks free-flow of fluid and forces it through the steering rack piston. That's why the engine RPM (at idle) drops a little when you turn the steering wheel, and if you turn the steering wheel all the way against the stop, the rack piston stops taking more fluid which causes the pressure to rise rapidly until the overpressure relief valve in the pump begins to let the excess fluid bypass the control valve. That's the hissing sound when you turn the steering wheel all the way. Thanks for the great video! I enjoyed every second and I enjoyed the fact that every second had something useful in it!

[@speedkar99]

I meant it's still inefficient compared to electric steering, since you still have the pump and fluid circulating

[@fromjesse]

@@speedkar99 Oh, I see what you mean. Although with electric, you have to consider it's pump - an electron pump - aka the alternator - and it has to be larger to handle the increased load, and it's always turning and always sending full voltage to the electronic control module, which wastes some of that power all the time. The larger alternator puts more of a load on the engine, all the time. (Yes, a larger alternator has larger core losses even when producing small currents. Look up core losses in generators.) So the increase in vehicle efficiency isn't as great as you'd guess. But sure maybe you can get a couple percent better mileage - which could save you a few dollars a year - but my guess is that your entire savings is gone when you then also take into account the greater cost EPS to start with, and the greater cost when it dies and you have to replace it, and the much greater chances of it breaking: It's a very complex system involving wires, semiconductors, electromagnetics, and a computer chip more complex than the one that first landed on the moon: The average rate of failure and average yearly cost of EPS repairs per thousand cars FAR exceeds that for engine driven hydraulic power steering, and this cost severely consumes the slight fuel savings brought by EPS. Hydraulics last an extremely long time, are very simple, and nearly bulletproof.

[@SunnySFM]

Nice video and you are teacher do a car

[@speedkar99]

+KennyTheFoxySFM1 - FNAF and MC thanks. I am teaching you a car , got the full thing taken apart.

[@flyingcat2054]

Thanks, I’ve suffered terribly with bad racks, leaky, hard to steer, etc. Now I know more. Didn’t know those holes the fluid moves through were so small by the pinion gear. Easy to clog.

[@speedkar99]

Make sure the seals are intact and the fluid is fresh ATF.

[@EaglesVision999]

Hey, its the guy reviewing the KZbin teachers videos. My goodness. Such a great explanation especially with the diagram. I like how you had three videos that talked about ABS system. 10 out of 10 my friend. 10 out of 10.

[@tidakadaide]

Perfect video......This is the kind of information that kids at schools should be made to watch before they get a license.

[@speedkar99]

I agree!

[@xu3786]

Thanks very informational, 0% bullshit and fast cuts. One of the best videos in KZbin.

[@speedkar99]

Thanks, that's my style. Quick and to the point.

[@steveguest8028]

This is a very clear and easily understandable explanation of how power steering racks work

[@tonyulriksen6532]

Thank you , thank you! Best video on power steering that I have seen; your approach, humor and excellent point by point explanations are spot on. The magic happens at 5:50 👍

[@joedejesus6363]

Talk about Modern Marvels, it's truly amazing how engineers designed something as complicated as a "Rack and Pinion" steering system. Great Teaching Tutorial, Thanks !!

[@speedkar99]

+Joe De Jesus agreed, theres a lot of engineering gone into this

[@courier11sec]

You did a great job explaining the function of the hydraulic control valve. Some terminology was not correct, like lateral, but the hard part, you did a fantastic job with. No insult intended.

[@speedkar99]

Thanks for your kind feed back

[@pjay3028]

Brilliant video, thank you. I'm amazed that you don't feel the slack in the steering resulting from the torsion bar twisting.

[@speedkar99]

You are welcome. No you won't feel that slack because of the steering ratio

[@nahid1981]

really feeling privileged to see this because you cut through the system just for us.. God bless you

[@speedkar99]

You are welcome

[@zachmcintire1202]

Im telling you man, your content is invaluable to beginning mechanics. Thank you for all your work. Keep it UP!

[@speedkar99]

+Zach Mci Glad you like it!

[@drtone]

Yes, sir!....the human heart is so inefficient.......it keeps pumping when you're just sitting there and not thinking about anything :) great video, informative and entertaining as heck, keep up the great work!!

[@jadens4124]

This helped with mechanic college classes so much, youre a life saver. Thank you 🙏

[@ziaqadirkhan]

Excellent descriptive demonstration how a power steering assembly works. Commendable job done.

[@speedkar99]

+Zia ul Qadir Khan Thanks for the feedback!

[@SpareRoomPokemon]

I work as a mechanic and I still have a lot to learn. My friends think I'm this master mechanic, I watch his videos and I feel like a noob hahaha. Excellent videos, its nice to see how components actually work vs. just replacing them and moving on. I have replaced about a dozen a/c compressors this summer and many of them leaked. Watching his a/c compressor video makes me wonder if an o ring or gasket was bad. I know time is money and I work at a very small "ma and pa" shop, but I can't help to think how many parts could be repaired and work just as well if not better as a replaced aftermarket or junkyard part. Keep up the very informative videos! And tell your brother to keep buying more socks haha

[@ajaynarayanan2326]

You are the actual pro mechanic dude... salute to you

[@speedkar99]

You are welcome

[@mgcezz2154]

This is wonderful, the first time I see every detail of the Steering rack, thanks buddy

[@LitchKB]

Relevant and concise detail with demonstrations and cut-away parts - I really appreciate the efficient delivery of this knowledge.

[@speedkar99]

Thanks

[@ToWi1989]

Ive looked at schematics a long time ago, but never heard about the torsion bar, so i could never quite understand how it worked. Very informative video!

[@speedkar99]

I'm glad it helped you learn something new

[@harperwc]

great video. clear, concise, and accurate. more youtubers need to adopt that philosophy.

[@speedkar99]

Thanks I'm glad you appreciate my style

[@rlayoutube]

Wow! Well done. I'm blown away at the number of parts that make the steering work so smoothly. Good job and thank you!

[@speedkar99]

You are welcome, Yea the steering is quite an interesting system!!

[@rustlebruxz0013]

Good explanation. I knew in general how it worked but seeing the various pieces as you took them apart made everything clearer. Thanks.

[@speedkar99]

+Russel Brooks Hey thats what I'm here for, thanks for the feedback.

[@bairfamilyfarm1336]

This is the only video that explains power steering in a way I understand.

[@Garageaholic]

holy shit, this was the most detailed, succinct, well explained video I've ever seen on power steering functionality. THANK YOU!!!

[@trash_in_a_box]

Wow. I feel kind of like I just tried to drink from a fire hose. If all your videos are like this, you are an underrated youtube channel.

[@randallhuelsman3559]

Thank you for taking the time to show how the rotary valve operates. This video help explain problems I'm having. Job well done. Sir

[@speedkar99]

+Randall Huelsman Glad you found it helpful. Yes I found the rotary valve was the hardest to find examples on when researching for this video.

[@setSCEtoAUX]

This is an exemplary explanation. Seriously top notch. Thank you for putting it together. I especially like your "19mm hexagon socket" 🤣

[@speedkar99]

😁 Thanks. Glad you like my handy angle grinder.

[@SV_Halcyon]

very articulate. I definitely learned something here. had no idea there was a torsion bar in there to redirect fluid

[@richardpalusaar3364]

Thank you! I watched several videos on the subject but your hands on tear down coupled with a well worded explanation of the inner workings of each component put an end to my guess work.

[@speedkar99]

You are welcome, thanks for watching, I have alot more teardown videos coming soon.

[@Strakos0]

You are incredible, I just watched a mister behind his craft. I was totally aware of that, and quietly listened to you. What else to say. Amazing.

[@speedkar99]

I'm glad you appreciate my effort

[@josepeixoto3384]

Easily the number one explanation of this matter on youtube; as usual; thanks.

[@jimc3678]

GREAT JOB!! FULL, Thorough, Explanation in just a few minutes.

[@speedkar99]

Thanks. Short and to the point is my style

[@hankl722]

you must own a wrecking yard. very in depth instructional video. great job

[@speedkar99]

+hankl722 I just bought a cheap car and am taking it apart out of curiosity

[@fromragstowrenches]

This was really well done. I was looking for better understanding of how the control valve works, you nailed it.

[@speedkar99]

Yeah that rotary valve was really puzzling for me too.

[@nethacker91]

Thank you for simplifying the magic of power steering.

[@blkferrari355]

Hey man this is by far the best video I’ve seen that explains how a power steering rack works. Great Job!!!!

[@speedkar99]

Glad you enjoyed it

[@frankj.garcia1235]

Thank you for the great description of the power steering system operation.

[@speedkar99]

Glad it was helpful!

[@contaminatecha]

Discovered your channel last night and have been bindge watching your videos ever since. Learned so much!

[@speedkar99]

Glad you are finding my content useful

[@terapode]

You don´t need fancy special effects and computer graphics to make a great video. Thumbs up to you.

[@sandybanjo]

Excellent presentation! I recently had the rack and pinion replaced in my old 4Runner.....seal was leaking....Had no idea of how this worked, so now....thank you!

[@Axabraxa]

Excellent straightforward video!!! I have a steering rack problem on my 2006 Citronen C5 (260,000km) that is not covered by anything I have managed to find online! A few years ago the driver side front tyre wore out very quickly. I found out it was due to the rack on the pinion side had a vertical play. I could by hand move the rack up and down about 10mm wich caused the wheel to move, probably to one side while accelerating. And towards the other side when braking and decelerating... Causing the tyre to wear out almost evenly (in opposite to wear from faulty toe-adjustment) I opened up the "Rack damper screw" (some places called Yoke adjustment screw/plug) and applied new greas on the pinion plunger, and tightened up until the play disappeared. All have been fine until the driver side wheel now again have a bit of side to side play. I tried to tighten up the plunger a bit more, but that causes the steering to bind. And when backing of just a little so the steering wheel moves smooth again, play comes back.. My first thought is that the plunger that supports the rack against the pinion are worn, but I have not seen any spare plungers for sale. Is my thinking correct the also the plunger can wear out as with the bushing on the opposite side? Cheers Gunnar

[@vusindlovu8897]

You are the king of the internet! 👌

[@bushyboy8376]

That was a great explanation of the torsion system in the pinion! I was wondering how it worked as I’ve just refurbished my steering rack! Thanks!