How a Power Steering Box Works 610BOB's Teardowns

[@anvilhead59]

After wasting way too much time trying to find out how power steering works, I found this. Thank you very much for the very informative video and your Star Trek references were fine.

[@primeengineering31]

incredible. it was so clear, well timed, prepared, to the point, just incredible, people with natural teaching abilities dont come often.

[@MrMac1986]

Came to learn how old fashioned recirculating ball steering works, left knowing everything there is to know about power steering in the process; and all while being pleasantly entertained. Best video on the subject on youtube bar none!

[@karmicmessenger]

I've been replacing seals on these gears and I've been swapping these gears for 45 years and until now have had no idea how they actually worked. Thanks for educating me.

[@gustavolopez3659]

can i ask u a question my master??

[@gustavolopez3659]

am working on a 94 ford ranger with gearbox, if you turn left its fine but if you turn right its really hard to turn, i've already changed the hidraulic pump and still the same! i need some tips about this please! houses?? or the box?? i got tires bidding and nothing!! i'll wait antious for your answer!! kind regards from mexico!!^.-

[@karmicmessenger]

@@gustavolopez3659 If you feel power assist in any direction then your pump is fine. There is a valve that directs the pressure in the gear and it is what is causing your headache. I've seen those valves fail and the steering wheel won't go left or right, the hydralic pressure locks it in place. Replace or rebuild the gear.

[@Riseuhh]

Got a question for you if you have the time! I have a 2020 silverado 2500. Need to replace the steering gear box. The one that’s currently in the truck has the plug for the electronic steering assist as well as a mounting point for the module. The one I bought does not. It seems like I can just take off the four bolts on the end (positive feedback valve?) and swap the two pieces, can I do this?

[@karmicmessenger]

@@RiseuhhSorry, I have no experience with your system; I've never seen a steering box with a sensor or module. my guess is that even if it functions it will probably set a code.

[@adamshpolyansky2827]

What a hidden gem! Nothing useful comes up when searching recirculating ball steering but then this thing gets recommended! That was a really well-done explanation, thank you!

[@sschapasc]

You taught an old dog something new. Awesome description of operation. 👏🏼👏🏼👏🏼👏🏼

[@ScottDLR]

Your a lot smarter than I look . For the first time, I have an understanding of how these things work. Thanks!

[@jcolbyt82]

Excellent description of how this works! I love the detail and the cut open steering gear. Makes it very easy to see what is going on! Thank you for the videos!

[@cmeek65]

Great explanation overall. There is one slight problem and it has to do with the components you were unsure of at the end. If you are turning the friction on the outside of the sleeve is enough to cause the misalignment and open the valve as you described. When you stop steering the spool/sleeve combo returns to open center as you described. However, it’s the sleeve that rotates to catch up with the position of the spool. The springs you mentioned at the end are centering springs which provide the force required to re-align the spool/sleeve. That’s why the power steering will shut off at any wheel angle is your angular velocity is zero.

[@610garage]

Thanks. "However, it’s the sleeve that rotates to catch up with the position of the spool." Um.... I didn't say that? I feel dumb now. :) "The springs you mentioned at the end are centering springs which provide the force required to re-align the spool/sleeve." But dosn't the torsion bar in the input shaft do that?

[@christopherdiaz3586]

Appreciate the comedy made the video more enjoyment and yeah it was confusing but you explained it well thanks again

[@jelliottnesss]

I predict this will be one of the biggest channels in the history of KZbin wants the word reaches the masters you guys are absolutely incredible

[@jeeperjohnfabwerkz]

That device you mentioned helps the fluid flow valve return to center.

[@Skipperj]

Is it like a detent ball and spring that's used on manual shift transmissions?

[@jeeperjohnfabwerkz]

@@Skipperj no, it controls how much hydraulic pressure goes to either side of the piston.

[@glenquagmire4232]

Thank you very much sir john

[@dinosaurmonster]

this is what I'm watching before my Canadian red seal (national) exam in automotive, thanks man and God bless bro

[@610garage]

Wow, that's great. I'm honored. Thanks. I hope you passed.

[@mattlucero3448]

Nailed it bud. I hope you keep videos coming. Thanks a ton helps immensely

[@froglobster]

Wow! Thank you for being so clear and concise! This is by far the best description and explanation ever and I’ve been in this automotive life since I was 10 lol! Thank you!

[@bush8501]

best explanation on KZbin. thank you

[@SteeleFarm]

Excellent chalkboard explanation! Also...."I'm an Engineer, not a miracle worker." Live long and prosper.

[@610garage]

Thanks. You as well.

[@wranglercjseven69]

Thumbs up right to the point and an extra bonus for Star Trek

[@mylesswann530]

Picked up a used one for my dodge 2500 to rebuild and I've been dying for an explanation of its guts. Thank you, subscribed.

[@FarmingFixingFabricating]

Nice job, most importantly is how well you cut it in half

[@610garage]

Thank you. I appreciate you noticing that. It was something that I put a lot of thought into.

[@krystaltholen9736]

“Yeah you may want to watch this video a couple times” that hit me personally 😂 this is a great video thank you for the time it took to make it! Some much info

[@bluehandsvideo]

Great explanation Josh! Thanks!

[@610garage]

Thanks. I'm glad you liked it.

[@thadhaines1631]

Thank you sir! You did in 8:04 what was taking me close to an hour. Your sense of humor was better received than mine also.

[@610garage]

Thank you. I'm glad you liked it.

[@Bob11173]

Thanks Josh, This is great. I'm debugging a steering problem and this kind of information and rare and essential to avoid just throwing expensive parts at the problem.

[@TomWylie]

Thanks! This was excellent and very clearly explained. It really helps me when I can fully understand how components work before I work on them so I know how to work within their limitations and design.

[@tylerreese6205]

your star trek impersonation is spot on. people give me flack for my impersonations too , but I ignore those fools, as should you. Keep the faith and may the force be with you. ( Over time , I have found out that it's perfectly okay to mix and match star trek and star wars impersonations, language, etc.. If it annoys anyone I say send them to their mother in law's Uranus. " I think she's gonna blow , captain.". " It's about time, Scotty, cuz her daughter's sure don't.". ( Intergalactic humor and not much of it.)

[@taylorgill9537]

Holy crap dude. That was perfect. Maybe not the "Scotty" but exactly what an explanation should be. Thank you.

[@SnowroxKT]

Thank you for the excellently executed video! I've been searching for Hydro Assist diy instructions for my 2006 F250 I'm going to hydro assist with my 40" tires for moose and caribou expeditions in Alaska and this is a great *assist* in that process. 👌

[@bogywankenobi3959]

610: At time point 7:40, you ask what that spring clip does. I would like to try to answer that question. Back about 4:20 you have a very nice drawing of the valve, with the inner sleeve, the outer sleeve, and the fluid flow paths. You show the inner part, which is all white and blue lines and arcs, and the outer sleeve, which is white and red and yellow and green. The inner sleeve (blue and white part) MUST be connected to the steering wheel via the shaft in the middle of the steering column. Because this inner sleeve is connected to the steering wheel, it can turn perhaps 1 and 3/4 turns in each direction from center. If the outer sleeve is stationary, which it is not, the pressurized fluid would alternately be directed to the top of the piston and then to the bottom. Additionally, every 45 degrees of steering wheel rotation, the white part of the inner sleeve would absolutely block the flow of the pressurized fluid altogether, causing maximum pressure to build up in the high pressure hose and back onto the pump. Put another way the sequence of events would look like this, 1) pressure would be directed to one side of the piston. Then as the rotation continues, 2) the supply port would be covered and the pressure would rise to maximum. As rotation continued 3) the supply port would deliver fluid to the other side of the piston. Then 4) supply fluid would, again, be blocked completely. But this is not what happens. Instead, that outer sleeve "follows" the rotation of the inner sleeve and cannot be allowed to go too far out of time with the inner sleeve, one way or the other. There has to be enough relative motion between the two sleeves so that fluid can be directed properly, per your description. But there can be only so much relative motion between the two sleeves or the events I described above will happen. In other words there needs to be a little bit of play between the two sleeves, rotationally. The spring clip that you asked about, I believe, holds a pin into a hole in the input shaft. The outer sleeve is machined in such a way so as to not be rigidly tid to the input shaft, but to allow for a little relative movement between the input shaft (along with the inner sleeve), and outer sleeve, so that fluid can be directed as needed, but not so much that it can get "out of time". I believe the two sleeves are made so that the pressurized fluid will eventually return them to a relatively "centered" alignment so that when the steering wheel stops turning, the fluid flows through the valve without putting pressure on either side of the piston. Ideally, the outer sleeve rotation would be coupled to the turning of the output or sector shaft and not to the input shaft. This would allow for a more perfect positional feedback. But it would be difficult to implement. Further, the seals between the outer sleeve and the case probably provide a slight amount of friction to help slow the movement of the outer sleeve to help with the relative motion that directs the fluid. The pin under that spring just keeps the relative motion from getting too large.

[@brianb-p6586]

The partial gear on the output shaft isn't a pinion, because it isn't a small gear. It's a sector gear (because it is only part of a circle), which is why the output shaft is often called a "sector shaft".

[@DanielKatundu-y8t]

Where has this been?! Life saver!!

[@AnthonyAgostino]

Well done!! absolutely fabulous, but ONE comment. At 8:04 you are going down the elements of the valve, you SAID "Piston Top" "High Pressure" "Piston Bottom" but you WROTE "Piston Top" 2x.The cutaways you did are clean and clear. I always love those but never understood how they were done so perfect. For those that do not completely understand hydraulics, this system works off the hydraulic principle of Force x Area = Pressure. Fluid is incompressible, so any force you apply to a closed container is transferred in all directions equally. If you notice the bottom of the piston is large surface area, so if you allow in pressured fluid at 100 psi, and you have a 1 inch area, you get the force of 100 pounds of force. If you have a piston like this with three or four inches, you get to multiply the force so 100 psi in, creates three hundred or four hundred pounds of force. If you notice that the of the one side of the piston is larger than the other side of the piston because the shaft is in the way effectively reducing the available surface area to press against this would potentially lead to an imbalanced feel turning left versus turning right. One side has a bigger piston than another side. I am interested to see how this is compensated for to give a balanced feel to the turning process. Thank you so much for doing these. I am going to look for more from your page.

[@schuylerpryne5]

Omg i love your videos. Thank you. I have an old rx7 and box died. Now i understand what the meter valve is.

[@pseudonym2110]

This is the best video in the last fucking 50 I've watched on this

[@downto2538]

Power steering is so much more complicated then I thought it was. Omg that poor little deflection rod plays such an important part

[@JP-vs1ys]

Absolutely fantastic work. Seriously.

[@WesternReloader]

The best video explaining the function of something ever! Subbed!!!

[@centariprime9959]

Well done! Very good engineering analysis.

[@michaelharris1455]

you did a good-enough job explaining the power assist, that we won't make you wear a red shirt. 😉

[@cody3687]

Awesome tutorial on how a steering gear box works.

[@MoongamerBullet]

Great video, explained everything very well. Thank you for posting it!!

[@JoseGOrta-zl2fm]

Im about to replace my seal gaskets on my gearbox 1978 460 engine F100 Lariat.Great explanation.Merey Christmas from Houston Texas.

[@surajjohnphilip]

The best explanation on power steering rotary valves.. Thank you

[@610garage]

Your welcome. And thanks.

[@LimaTangoZulu]

Fun fact: that rack/gear has an adjuster screw to take up the slack between the teeth when it wears out. And if you over tighten it by accident, it can permanently ruin the mechanism. So yeah, don’t go poking around your steering gear with screw drivers. Let a professional adjust the steering gearbox if needed.

[@dariocorral]

THanks for explaining, very easy to understand this way

[@stanthology]

The clearest explanation. Thanks a lot.

[@MrEyad1990]

Man I really thought that this video will be boring but oh boy I was mistaken this was very informative.

[@610garage]

Thanks. That means a lot. This stuff is really interesting to me. I always try to impart that interest to others.

[@MrEyad1990]

@@610garage keep up the good work man .

[@unturnedindonesia600]

The steering box system is perfectly work for hotrods, Dragster, And also 3 wheeler car like reliant from UK,, because this steering system can use to move single steering knuckle without taking up much space on the chassi

[@neallojek3763]

This is a complex topic. Great explanation

[@johnM-Jr]

Thanks, wish you'd covered the adjustment screw how that works. Mine is rusted frozen, jam nut to the adjuster. Trying to break that free.

[@yogeshramachandra]

Thanks for making it very simple.

[@shonuffisthemaster]

great explination and its never the wrong time for a star trek joke;)

[@DanneyTanner]

QUESTIOn for 610....If i do a engine swap and the pump on the new engine has more pressure than the gear box was made for would the steering box turn stiffer and or bind up some ?

[@mikek1187]

Excellent description of the Saginaw steering box. You need more subscribers, I just subbed.

[@martysheets6882]

Thanks for the show and tell.

[@spacesuitor]

Y'all rock for this.

[@teabreak4t]

excellent explanation of these steering units thank you

[@vishwashsingh2468]

finally a good one! It was just amazing....

[@davidgallegos5323]

Great content hope you stay at it brother I just found your channel I own a 2001 f250 7.3 and ready to install a new gearbox

[@swilson6206]

What does the steering gear adjustment screw do?

[@omarpatino4230]

That’s a really good explanation man. Thank you!

[@betogonzalez617]

I like the way you explain,thank man

[@WillyBouy]

Very good but didnt show the adjustment bolt and what that does when its tightened and loosened.

[@mitchelldelic9783]

Fantastic explanation! Awesome work.

[@labradormcgraw2409]

Best video I've seen on how power steering works.

[@610garage]

Thanks.

[@ronswartz1176]

I wanted to see how you load the ball bearings into the shaft!

[@TCRTT]

Great job and my wife loves the Star Trek part.

[@DanielS-wk5dj]

Thanks for this, it was ultra helpful and really informative

[@SamGlasser]

So there still must be a pump connected to the drive belt to provide the push for the fluid, right?

[@ricrent263]

Super informative video! Thanks for taking time in explaining.

[@garyr7027]

Good explanation, this was very interesting. Great cut out on the gearbox.

[@dewaldsteyn1306]

Its the steering-box not the gearbox.

[@pricelessclips]

My 1993 Mercedes 300TE The steering wheel has a lot of play from the (center) 2 inches to the left and Right. Another problem I noticed when on park (not driving) is when you turn the steering wheel all the way to the Left (end) or Right (end) and release the steering wheel... it bounces backward. The steering wheel went 5-6 inches to the opposite direction but the wheels doesn't follow. When I'm driving I only notice some play. Do you think this other problem can be corrected by adjusting the screw or the steering box or something. Mercedes steering box is a lot of money. Thanks

[@Fix_It_Again_Tony]

Excellent explanation. I am researching hydro assist and it's difficult to find an actual explanation on pirate4x4 or other sites beyond "drill here". I actually feel like I can take apart any steering box and figure out where the assist ports need to be drilled after watching the video. Thanks!

[@robanderson4137]

What I wanna know is how the gear box adjustment screw works...how does it remove play in the steering column when tightened? What happens if you over tighten.

[@greensnake00]

It wont turn if over tightened I did this to my truck on the weekend and the steering hasnt felt the same since I managed to get it loose again as it was like having the steering lock on literally couldnt move it nor could I loosen the box but managed to in the end by jiggling the wheel and now my steering is sometimes notch whitch is why I'm watching this to try and figure out what I've done 😂

[@michaelreid4522]

wish I'd had this video to reference when i was doing my apprenticeship. awesome video dude!

[@610garage]

Thanks!

[@BrayanIvan]

Excellent explanation

[@1R_D_Z]

Damn, this is an old video but what the hell, Thanks for this i'm currently in school and this helped alot!

[@adriangutizz6621]

Awsome and very simplified for my understanding!

[@serialgrillaz6669]

So my power steering stopped working overnight, the pump is working and all the valves appear to be working too, if the metering rod was broken it would still steer with the wheels off the ground but no fluid would be getting directed to assist correct?

[@rmille261]

Great job, you made it very easy to understand! Thank you!

[@striela1]

Thanks Josh, great video!!

[@610garage]

Thanks. I'm glad you liked it.

[@lalpremjith1]

Great video Bro, Really appreciate the effort, Now I know how this thing works

[@tekingzvlog]

Thank you sir for sharing your knowledge..take care

[@skrapenpennies9947]

Quick ? Will adjusting the gear box screw all the way tight cause gear box to malfunction of pump. I did this on my Freightliner and few days after my steering is tight both ways and the steering wheel doesn't return to center after turning. It also gets worse when hot. Thanks

[@f.fernandez9421]

Hey 610 Garage i have a quick question. I have a Volvo truck D13 and is leaking oil through the power steering box on top there is a small little hole rigt on the top cover. i believe they said the little hole is a breather. but wy is leaking through there. also can i put a plug to the hole? or put epoxy?

[@paralleltripper]

Great vid, great info and laughs. Kudos for all that editing!!! Came out a great vid

[@610garage]

Thanks. Honestly, the editing was the funnest part. LOL :)

[@rogergossage6650]

i had a re manufactured one put on my 1989 d 150 and for some reason it turns easier to the left than the right. maybe some flow restriction?

[@andreiperez5883]

I have a power steering box like this and have run into an issue that I cannot figure out. Would you happen to know why my steering is overly responsive? I rebuild my box with new seal kits and now my steering is very effortless to turn.

[@staceyg7816]

Thank you for this. Seriously.

[@rogercarrico4975]

Very nice! I have wondered about these. Pretty complex

[@VincesEngines]

Good video and great explanation.

[@Subfightr]

Wonderful job. Thank you. I have a powersteering issue where the vehicle pulls to one side but the alignment is fine and the breaks are fine. I replaced the pump and lines and that didn't fix it. I believe it's power related because while I'm driving, if i put the vehicle in neutral and shut the van off, it will steer straight, keep it in neutral while coasting, turn it on and BAMN, car once again tries to turn left. Your video seems to explain the issue around the 5:40 mark in your diagram. Does anyone agree or disagree agree?

[@610garage]

Thanks. I would say yes. It is your power steering box. By turning off the engine, you have basically shown that everything but the power steering syestem works. And the power steering box is the only thing that would directly affect steering direction. You could have a clog inside or, more likely, a bent torsion rod inside the valve. Either way, I would say that your next step would be to replace the power steering box.

[@Subfightr]

610GARAGE thank you so much for the advice and your time.

[@thureinphyo2473]

Nissan d21 power steering fluid is flood from the resever tank almost to empty.Please give me advice for this problem.Thanks

[@rohmawati3805]

thanks man, you are make me understand how power steering work subscribed and like the video, also ill use your vid to explain how power steering work to my friends

[@djberg3483]

Great tutorial my friend! I think this just told me what happened to the stering box in my mothers tractor, she sheered thebinput shaft, wonder if I can find just the shaft.

[@ericlentz7236]

I have a rebuilt (Napa) power steering gear box similar to yours but for a 1969 Chevelle. I'm told that there are internal stops, but I couldn't see any in your video. I ask because my box is supposed to be 3-¾ lock to lock and I only get 2-½ lock to lock and my turning radius is greatly reduced. Any idea what might cause this?

[@Aragonaeranseventh]

what does the adjustment screw on steering gearbox do ! how can i eliminate steering play by adjusting it correctly

[@littlereptilian7580]

Fantastic video. Best

[@aniketpachore1008]

Very well elaborated

[@amateurism1]

Great video!