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How To Rebuild Your MKIII Supra Power Steering Rack and Pinion: A70 S1•E2

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How To Rebuild Your MKIII Supra Power Steering Rack and Pinion: A70 S1•E2
Today we are walking you through how to do a complete rebuild on your MKIII (A70) Supra Power Steering Rack and Pinion. We will show you what parts you will need along with tools required and workarounds for some of the Toyota Special Service Tools.
Toyota Rebuild Kit Part Number: 04445-14020
Gates Kit Part Number: 349370
www.rockauto.c...
Kent Moore Pinion Preload Socket - part number J-35428
can be found on ebay below
www.ebay.com/s...
BEARING(FOR POWER STEERING CONTROL VALVE) - 90363-19002
BEARING(FOR POWER STEERING CONTROL VALVE CENTER) - 90363-30054
DISCONTINUED BEARING(FOR POWER STEERING CONTROL VALVE LOWER) - 90363-12008
non-oem replacements
NACHI 63012NSE9C3
NACH 63012NSE9CM
A70 Rack Spacers
www.driftmotio...
agileperforman...
Make Sure To Subscribe so you catch all the upcoming A70 episodes!
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Опубликовано:

5 сен 2024

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Комментарии : 112

@CARS-N-CAD 3 месяца назад

Life saver for those of us with right hand drive racks!

@BoostRodeo 2 месяца назад

I can only imagine. I have been starting to try tracking down some parts for the gt-four and it's already proving to be a challenge

@FayeHadley 3 года назад

What a great video!! I was considering rebuilding my spare... you make it look so easy, I am definitely gonna get the proper socket and try it for myself now!!

@BoostRodeo 3 года назад

It's a bit of work but not bad at all Faye! Just take your time. The spline socket is the only specialty tool you really need. A subscriber also figured out that zip ties work better than rubber bands for compressing the o-rings.

@ferasyassin8355 3 года назад

Use an impact and you dont need that socket at all

@SamOHalloran 2 года назад

Didn't really want to do this but my rack is leaking bad. I was going to just send in to Rock Auto, Cardone has a rebuild service, but the internet agrees those rebuild services usually don't do a very good job. So just ordered a seal kit, the last spline socket on ebay (hit me up later if you want to borrow it!), and since I'm saving some money not using the rebuild service, went ahead and ordered a Boostrodeo shirt. Thanks for the video!

@BoostRodeo 2 года назад

So glad the video helped! I questioned if it was worth tearing the rack apart again after I had the entire thing back together just to make the video, but hearing that it helped you makes me 100% certain it was work the effort. Thanks for supporting and ordering a shirt, that means the world!

@nickk3765 Год назад

Can I rent the socket?

@SamOHalloran Год назад

@@nickk3765 I actually sent it on to someone on the forums, but I'll see if he's interested in sending on to you when he's done.

@jakeusan Год назад

@@SamOHalloran Is the socket back in your possession?

@dereku4664 11 дней назад

Its been a while but figured id see if you still had this socket? TIA

@ooohry 3 года назад

this was overall a great video, i'm going through it for a soarer steering rack which seems almost identical but i just want to say youre the MVP for that 5/8 bolt trick. i couldnt find the appropriate hex bit anywhere in town, special order and more than 60$! but after i watched this, 3$ at the local bolt shop and we're in business.

@BoostRodeo 3 года назад

Soarer/sc/mkiii/mkiv racks are all pretty similar! Glad it helped! I was in the same situation finding one! If you want to get really fancy weld you can weld the bolt to an old socket 👌

@ooohry 3 года назад

@@BoostRodeo wish i had such luck finding that spline tool though. my local dealers dont even have the part #

@BoostRodeo 3 года назад

@@ooohry check ebay, there are usually a few on there

@ooohry 3 года назад

@@BoostRodeo i found the trick, just my manual is old, tool has a new part # that i can order from toyota :)

@Sagwax 4 года назад

Thank you man I'm about to rebuild the steering rack on my 92 right hand drive twin turbo. This will help a lot

@BoostRodeo 4 года назад

Glad it helps! Should be the exact same steps just the rack will be mirrored 👍

@AntonioClaudioMichael 4 года назад

The gold look came out nice as well as the powder coating

@victorpinto9123 3 месяца назад

Dont forget electrical tape on the gear side of the shaft, I learned the hard way and ripped the seal as I was inserting it in. Did I vacuum test and it leaked.

@BoostRodeo 2 месяца назад

Very good fallout. Those teeth are sharp and it doesn't take much to damage the seal.

@wadupdockandrew8609 2 года назад

I do appreciate this video. Thank you for re-dis-assembling for us

@BoostRodeo 2 года назад

Thanks! I'm just glad that it has helped some people.

@Shwalker07 4 года назад

Nice job. Very well detailed and will be helpful for many.

@BoostRodeo 4 года назад

Thanks! Hoping it helps someone else tackle this job themselves.

@scottchelmford7136 3 года назад

you can use the steering shaft bottom half as a substitute for the kent-moore spine socket btw ;)

@BoostRodeo 3 года назад

That's true! I should have mentioned that for people that don't want to get one or can't find one. It it nice to be able to put a ratchet on it to torque it when reassembling though.

@scottchelmford7136 3 года назад

@@BoostRodeo for sure, i think you could probably turn the shaft to full lock and loosen it up or potentially torque it properly as well. there is another youtuber who rebuilt the rack in his 1988 mk3 and when he re-assembles it he puts electrical tape on the teeth on the ram..upon taking apart the rack on my 89, there is a visible crack on the seal which i do think happened when it was re-assembled. your vid is a ton of help and just a tip for the future if you decide to re-do this video or do another DIY tutorial on smaller components..use a gopro if you have one. the POV angle would help alot

@justinmarch 2 года назад

Thanks man! Perfect

@lukebucey5474 4 года назад

awesome video. I am in the same boat of jz swapping my mk3. my car has pps and so Im very interested for this next video!

@BoostRodeo 4 года назад

Should be out soon with the added downtime we have right now!

@Adrian_Supra 4 года назад

Definitely going to need a glass of Bourbon lol

@BoostRodeo 4 года назад

Probably the most important thing so you don't throw it across the room 😂

@dreamgarage6830 4 года назад

Thanks so much I didn’t know what to do

@BoostRodeo 4 года назад

It's a little intimidating but really isn't that difficult once you figure out a few tricks, hoping this gives more people the confidence to tackle it themselves!

@TrenKjay 4 года назад

Love your videos bro your inspiring in the way you keep it up and your content is dope love it continue !!

@BoostRodeo 4 года назад

Thank you so much for the kind words man! Always appreciated and it really helps keep us motivated!

@Airsoftermason 4 года назад

Love the video just with i had the ambition to rebuild mine, but i dont really care for the powersteering😂

@BoostRodeo 4 года назад

I'm all for going full racecar but with how heavy these cars are I really can't stand the power steering not working. I also drive mine a lot when the weather is nice though.

@AntonioClaudioMichael 4 года назад

Great rebuild bro

@BoostRodeo 4 года назад

Thanks Brother!

@DaKineGuy 4 года назад

This is useful! Thank you!

@BoostRodeo 4 года назад

Thanks, Hoping it helps someone!

@sparkspeedshop8320 4 месяца назад

What size is the huge Allen socket needed instead of the 5/8 bolt?

@AntonioClaudioMichael 4 года назад

Good tutorial

@sshupra6503 Месяц назад

Hey! Trying to rebuild mine. There is a single spline socket I can find, do you know of any other sockets that would fit or work? Would really rather not spend 100$ on a socket I'll use twice

@BoostRodeo Месяц назад

Unfortunately it's a pretty specialized part. SnapOn, Match are going to be $$$ as well. Another option is to use the steering intermediate shaft to keep the rack input from turning. Either take it out of the car or hit up a junkyard and grab one out of another toyota that is the same size. I believe it's's pretty common between most of their midsized cars.

@jimcswims 5 месяцев назад

Boost what’s the spline socket size/tooth?

@abysalheat 3 года назад

This is a great tutorial. I will be watching the Rolla series next as I'm building a drift TE72 right now. Do you know any differences in the rebuild between your supra and the AE86?

@BoostRodeo 3 года назад

They are pretty similar aside from the wrench sizes needed. Jealous you found an 86 rack for your TE72, I have been looking for one for ours. Is it a Power or Manual rack?

@abysalheat 3 года назад

@@BoostRodeo It's a power steering rack i got for free from a friend. It's in rough condition as the bolts holding the drive gear unit in are missing and the outer tie rods are rust welded to the inners

@nickk3765 Год назад

Does anybody know if the progressive rack rebuild kit is the same as the non-progressive rack? I have one of each I need to rebuild…

@BoostRodeo Год назад

Toyota has different part numbers for each. Most of the kit is the same though

@kando3670 4 года назад

Can you not buy one of these already rebuilt or are they no longer available? Looking forward to the MK3 content during the winter!

@BoostRodeo 4 года назад

Last I checked Toyota did not have any left and I went through headaches with two rebuilt racks from the standard parts stores that were horrible. Also I was able to get a brand new toyota rebuild kit so this way all the parts are high quality genuine Toyota and I know exactly how everything was cleaned and prepped. If you don't want to tackle it yourself then Detroit Axle is the only one I would recommend to for rebuilds.

@AntonioClaudioMichael 4 года назад

Detroit axle is a great place for diffs

@BoostRodeo 4 года назад

They do really high quality work!

@AntonioClaudioMichael 4 года назад

@@BoostRodeo yes they do i have got a few axles rebuilt from them

@BoostRodeo 4 года назад

@@AntonioClaudioMichael Nice, they are one of the only places I would trust with rebuilding an axle, diff or ps rack.

@Rob_77 4 года назад

Howdy again, here are the part numbers for the 3x bearings BEARING(FOR POWER STEERING CONTROL VALVE) - 90363-19002 BEARING(FOR POWER STEERING CONTROL VALVE CENTER) - 90363-30054 BEARING(FOR POWER STEERING CONTROL VALVE LOWER) - 90363-12008

@Rob_77 4 года назад

Non original replacements for 90363-12008 are, NACHI 63012NSE9C3 NACHI 63012NSE9CM

@BoostRodeo 4 года назад

@@Rob_77 Awesome! It looks like 2 out of the three are still available from Toyota. Not sure why I could not find them or the local dealer. Thanks for the info! I'll add it to the description for others.

@dickhead2285 4 года назад

Hey did you say you were going to add a link in the description for how to test the pps solenoid?

@BoostRodeo 4 года назад

here's a link to some earlier troubleshooting I did on the system when I was figuring all this out. It shows how to test the pps selenoid

@dickhead2285 4 года назад

Hmm doesnt look like you added a link homey, i went and tested the pps computer and the solenoid, it read ok after i put in the new solenoid, and the voltages were just within the spec, but it still didnt feel much heavier at speed... i got an a80 mind you, so yeah pretty light at 100 kph or 62 mph maybe its supposed to be light i dunno

@hafcinema7342 4 года назад

Appreciate the knowledge on this vid! I recently did a rebuild on mine & when I put fluid in it, it just poured out the driver and passenger side boots when I bleed the system?! Any reason for that happening. I went by the TRSM & still came out with no dice...

@BoostRodeo 4 года назад

Were there any burs on the rack piston ends or teeth? It sounds like your oil seals on both sides were damaged. It could also happen if the pump is not regulating pressure correctly and is pushing fluid past the seals. There is a way to rig up a guage and check that. In this video I show how to do it. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-iGnnFm24T_c.html

@hafcinema7342 4 года назад

Yea there where some sleight burns I would say on the teeth but nothing I though was irregular, & yes it is pouring from both side having me feel like the pump has something to do with it as you stated! I’ll check the video you linked in the message thank you for messaging me back really appreciate it!

@BoostRodeo 4 года назад

@@hafcinema7342 Absolutely, hope you get it sorted and feel free to reach out if you get stuck and need to bounce ideas off someone. IG messaging is the fastest way to get at us.

@hafcinema7342 4 года назад

Right on appreciate it.

@384058 3 года назад

@@hafcinema7342 What was your end issue? I just got mine back together and the fluid is pouring out both end seals. Fairly positive I installed the seals properly and they aren't damaged.

@Joolian.r Год назад

Would you say that there is an area where you can adjust the slop in the steering rack? On some cars i've seen you can adjust that large bolt tighter to adjust the slack. Does the supra rack do the same?

@BoostRodeo Год назад

So the preload on the pinion nut under the large cap is meant to do that. Setting it correctly should set the mesh on the gears to create zero slop unless they are heavily worn. The bearings and teflon guide for the main rod also are things that could cause issues with play if they are really worn.

@Joolian.r Год назад

@@BoostRodeo thank you for the details I'll have a look at everything on mine

@Joolian.r Год назад

@@BoostRodeoI'm having an issue where I have tons of side to side play in my rack (nothing wrong with the steering shaft). I tried tightening the nut but that only made the steering stiffer but didn't remove the slop. I noticed all the rebuild kits are just seals, mine doesn't leak. What kind of rebuild kit would I be able to buy for an issue like this?

@mod7mgt35r2 4 года назад

Love ur soup.

@BoostRodeo 4 года назад

Thank you! Appreciate that🙏

@traingeek2000 4 года назад

What sensors/input does the PPS rack need to run? I've got a '91 turbo so I assume I've got it. Speedometer doesn't work so I doubt PPS has the necessary input to run.

@BoostRodeo 4 года назад

The PPS ecu does use a speed input but it gets it from the rear abs sensors so it should still work even if your speedo doesn't. Does the powersteering feel fairly light at low speeds but stiffer at 60-70+ mph?

@traingeek2000 4 года назад

@@BoostRodeo Not noticeably. My ABS light is also on, so I wouldn't be surprised if that's an issue as well. Also, I didn't notice any wires going to my rear knuckles, I thought only the fronts had speed sensors.

@BoostRodeo 4 года назад

@@traingeek2000 Definitely could be. ABS lights in these cars can be painful to track down in these cars from my experience. I chased an ABS light throwing a bad ground code for like a year on my other MKIII before I got it resolved.

@artemkvas2246 4 года назад

Hey there, just saw the whole tutorial of the rack and pinion getting replaced. And I had a few questions. I have a 1994 MK4 Supra and I’m wondering if there rack and pinion, gearbox or steering gear are the same as on the MK3’s? So I’m running to power steering issues as well. I just replaced my power steering pump, I bled the air out made sure there wasn’t anymore of that weird noise the toll it around the block. Right before I even took the first turn my power steering went out again. It worked for like 0.5 miles till my steering felt very hard to turn. As if there isn’t any. Do you think it’s the rack and pinion issue? Or the power steering pump went out again? What ever it is I’m lost and need some help.

@BoostRodeo 4 года назад

The racks are very similar l. First thing I would check is if the reservoir is clean. There is a screen inside that can get a layer of dirt and sludge on it and starves the pump for fluid. Drain the reservoir and look inside with a flashlight. Clean it by flushing with carb cleaner if dirty. Next I would make sure that the progressive power steering solenoid in the rack is plugged in if your car has it. Then check both the resistance of the solenoid and voltage from the pps ecu. The TSRM will have instructions for all this. If all that checks out I would do a system pressure check (also in tsrm or this video ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-iGnnFm24T_c.html ) and vaccum check the rack to see if the seals are good. Hope that helps!

@artemkvas2246 4 года назад

BoostRodeo I replaced the power steering reservoir to a mishimoto one, so it’s brand new. Also I think my power steering rack is not leaking cuz I don’t see any ATF leaking out from the cvboots. The progressive power steering solenoid is also plugged in, but your saying I could check if it works with a battery to test it?

@BoostRodeo 4 года назад

@@artemkvas2246 that is one option but don't put 12v to it. Use a 9v or 6v battery if you have one and only connect it for a few seconds at a time to see if the steering feel changes. The solenoid only operates on 0-5v so using 12v or even 9v prolonged can burn it out. You can also check the solenoid itself. It should have 6-11 ohms of resistance between the two connector pins. The pps ecu can also be checked with a multimeter. It should put out around a very small amount of voltage when not moving and above 37mph should drop off to almost nothing.

@artemkvas2246 4 года назад

BoostRodeo Ok I’m starting to understand this a little more, but have a few more questions. What is the 6-11 ohms of resistance? What do you mean by “ohms”? between the two connector pins. And also where is the pps ecu located for me to test the voltage on it when the car is running at idle.

@BoostRodeo 4 года назад

@@artemkvas2246 do you have a multimeter? Ohms is a measure of resistance. The two wires coming off the solenoid on the rack should measure somewhere in between 6 and 11 when y tested with a multimeter. That will tell you that the solenoid has not shorted out or the windings shot. This link should help, there is a whole section on the steering system and troubleshooting. www.shoarmateam.nl/content/mkiv-supra-tsrm/

@mekuable 2 года назад

Will this kit fit on a 92 jza70?

@BoostRodeo 2 года назад

The RHD racks are a mirror of the LHD one. All the seals inside are the same and a kit should work for either.

@mekuable 2 года назад

@@BoostRodeo thanks a lot friend. Keep up the good work 👍

@BoostRodeo 2 года назад

@@mekuable anytime!

@irish7m-squad743 4 года назад

Hey BoostRodeo where did you find your new rack and pinion?

@BoostRodeo 4 года назад

There are no new ones in existence unless you get really lucky and fine someone who bought one from Toyota and never installed it. Most of the parts chains carry rebuilt ones although I would only recommend getting one from Detroit Axle if you go that route. Or you can rebuild your current one which is what I did.