I MISSED A BIT! PART 2 OF THE PAS STEERING RACK DE-POWER MIATA MX5
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Part 2 of the steering rack de-power. I forgot to weld the pinion shaft.
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My names Matt Urch and I own and run Urchfab welding and fabrication.
I specialise in custom automotive fabrication from building roll cages to complete one off builds.
I built the worlds most unique and oldest drift car known as the drift rod which can be found on my channel.
So if your into grinding, welding, fabricating, drifting, going fast etc, your in the right place!
Matt, always remember 'A man who never makes a mistake, is one who never does anything'. Top job as ever.
Matt what I like about you is if you make a mistake ,your honest and explain what you did or didn't do in the case of the rack , well done .
Didn't even think about that when I watched the last video.
Yeah, The input shaft and pinions made in two halves, They're joined down the center by a thin torsion rod. The halves can twist something like 4 or 5 degrees with relation to each other before they hit endstops (That's so you can't twist the torsion bar into the shape of a pretzel if you steer while the pump isn't spinning. :) ). The idea is that when there's no load on the steering the inner and outer valve bodys line up to send equil pressure to both sides of the rack, But when you turn the wheel the inner valve body is able to be twisted slightly in relation to the outer valve body that's fixed to the output pinion end. When this happens the cut out channels allows more of the fluid to be directed to the end of the rack you need to extend. It's a kind of mechanical closed loop system (As in, You twist the wheel, That action opens a progressive valve that pushes the rack. The action of the rack reaching the required point brings the system back into equilibrium and the assistance stops).
It's an ingeniously clever system really. It's pretty reliable, yet simple once you get your head around how it works....... But it's not really an obvious solution. Whoever originally thought the system up was a seriously talented engineer (And as a Brit who was trained as an engineer at Rolls Royce aero engines, It pains me slightly to think that the brainy smart ar*e was probabbly German. LOL !).
It's useful for us folks to have at least a basic grasp of how things like this work. Even to a fair few self taught home mechanics the inner workings of power steering is only a couple steps back from being witchcraft. The unscrupulous garages out there know this and use it to their advantage, so having a general understanding of how it works might be the difference between working out that you just need something like a couple of seals replacing, Or being told you need to shell out well over a grand for a new rack AND pump (Plus two days labour) and you saying OK because you don't really know any better.
When you put it back together you didn’t put the oil direction collar (the thing sitting on the vice when reassembling) back on. Did the weld get in the way of that and you don’t need it?
glad you revisited this. i'm very partial to cars that do at least two things well: 1) steer 2) stop. they may not run perfectly, but they must steer & stop....
Omitted a step not missed a step ! Good to see a man that has enough guts to acknowledge a mistake.. great work and enjoying the build mistake included. Big thumbs up for the effort and the honesty.
I'm glad you got us back on TRACK and STEERED us to a proper conclusion 🚗
You need to get a big poster and hang it visibly on the wall somewhere and use at as a non-typical TH-cam mantra:
"It Will Do" Is Doing The Job Half-Arsed And Is Thus Not Good Enough.
Cudos for coming back to this.
Just drill a zerc fitting in the top of the rack or bearing on the worm gear and pump it full of Marine bearing grease for boat trailers, keeps out moisture, love the videos! Totally awesome!
Good to see you admit mistakes and show your viewers how to fix them well done mate
And that'll be the exact reason why I've got a little play in my de-powered rack!! I like you, skipped through an online video and must have missed this part. Excellent work on the whole, love the build and keep up the good work.
We've all been caught out by stuff like this. Lovely job on the welding, I'm just learning to MIG and absolutely love it.
Nice work and modest too. Well done. Happy New Year.
I'm so happy, you are one of us after all, not some cyborg that never get's it wrong.
Hey Matt at least yours was a simple fix. I modded a pinto sump for my mk2 Escort with baffles, hinges and crank scraper, once I got the motor running I could hear a bell ringing in the sump... Time to drop the xmember, rack, starter etc, once the sump was out I could see the offending spot where the Conrod bolt was just tinging the scraper, a light hammer tap and all sweet , though it was a days job..👍
Your brutal honesty is one of this channel's assets
Nice job! I love this low level mechanical stuff that most people don't have a second look at.
Nice one. Live and learn. Be willing to learn at least one thing every day. "Read the brief" as my students rarely do. Definitely man brain.
Nice honest little update, Matt and with a solution 'ta boot'....
👍the lathe was a bit of genius! Not that I would doubt you. 👍
Here's another one my dad used to use on me 😉
Now remember son if all else fails then read the instructions, 😊😁👍👍
great thinking putting it in the lathe to check for any possible deflections created by the welding process!!!
Would be better to weld the peice in the lathe
Yep That would have been much easier!
have done a few steering conversions on racks .
2 things.
1. if it needs to stay straight tack a weld with in a fixture and let cool there.
2. you are right yes the seals did need to removed as you sure wont see them in a standard rack as they are greased and bushed.
O and good work been watching a few months now.
I could have welded it in the lathe if I had thought a bit harder to start with. Cheers
@@Urchfab we all do forget things lol
@@Urchfab I was going to suggest that but I'm watching this 2hrs late! 👍
Happy New Year to our favorite fabricator on the East side on the Atlantic.
Honest as always.
Thanks for the hint with the ratio!
Generally speaking, steering components never rely on welds as they can be a weakness, if you look at steering parts they are all forged or bolted/riveted. Remember how Ayrton Senna's welded steering column was broken!
You see a tiny smile appear when Matt says "lets get back onto some welding work"
You know the bloke rules Matt, you only read the instructions when you're stuck 😂 That rack seems good to go now though 😉👍
Good honest real world stuff and it made more content .
That "little bit o' play" could've turned out to be bundles by the time it had gone through to the diameter of the steering wheel. Better it's done now (welded) makes the job a goodun. Nice job Matt. *****
Honest and modest - nothing wrong with that! Instructions ....... as you said “who reads them” yes it’s a man thing!! Great video Matt.
Awesome vid.....we all have moments.....here idea tap a grease fiting in bearing housing and rod tube so there less chance of metal on metal friction and smooth.....it be same grease used in ball joints
Great honest video. Thank you.
It's well straight after being welded. Good job
Your the man honesty is the best👍👍👍👍👍🏴✌️
You cuold have chucked it in the lathe to weld, would be straight enough then.Bit of barrier over the inportant bits of lathe. Cheers
For a second there the lathe sounded like the clock on countdown, lol!
Nice Job Matt
if both ends of the shaft were fixed in a jig (ie your lathe) could you weld freely without worrying about warping?
Nice work!
Happy New Year Matt!
What TIG settings did you use?
Nice to see a post xmas pre New Year vid, thanks. Thought Mongrel was going for blasting a couple of weeks ago?
Did you weld it on the Lathe the second time?
I had the same problem with mine warping a bit and creating a stiffer point
No but I should have.
Hey could you help me out a bit? Im de powering my steering rack right now, and I just recently got a TIG welder. That being said, I'm still a total beginner at TIG, so could you give me an idea of the settings you used? Im not sure if I should go for higher amperage like 110 or 120 amps so I dont end up putting as much heat in, or much lower amperage like 60 or 70 because its a pretty small weld. Also, I read from other people doing this process they used regular carbon steel rods instead of stainless like you used - what was your decision making on that aspect? Thanks!!
Urchfab drinking game. Take a shot everytime Matt claps his fist to his hand XD
Have a happy new year.
Top job, I must say thinking of man hours and effort involved I would have used a good second hand manual rack. Sure it would have cost a little but the time you would save you could spend fabricating the body etc which you're great at. Just my thoughts, LAG!
Yeh me too.
Maybe you could put few grease fittings on that thing and get it greased time to time by old fashion way with grease gun.
Hi Matt would you do some small repairs on my Dt 250 chain guard
Regards Garry
Do you think the heat from welding has made the shaft brittle now? I know here in NZ that wouldn't pass certification as you can not weld any component of steering the guys here either use a manual rack, or would have to turn that shaft up as one solid part, I assume due to welding making things likely to crack.
All the work is inside the rack. How would they know to fail it?
maibe you can add some bronze bushings to the ends or oilrings , mostly to keep grit out of the steering rack should the rubber bellows tear
Il just keep an eye on the bellows, Part 3 is not an option. Cheers
I'm usually at the "all done and trying to drive it" stage when i realize it's chooched and needs to be taken all apart again. jobs a good'un.
I've only ever heard "chooched" before from a Canadian, love the word, it describes it great 😉
Instructions? Never heard of him.
Well done -
A man asked me "How do you learn to work on cars and motorcycles?" I said just start doing it. He said "What if I make a mess of it? That is a part of learning said I . So you you learn and we learn. Matter closed.
Now we learn both
Is the body at the sand blasters now?
Its going today.
Cool, how long will it be there for Matt?
Can I weld my steering rack is it safe
I guess this won't be street driven, so no need to do NDT (Non-Destructive Testing) on welded steering components. NZ is very strict on that.
amazing job just discovered this build what chassis is under it ? na or nb mx5?
Nb I think, I don't actually know the difference. Its a 2002 1.8. Cheers
Thanks for the reply,Here is what the differences are :
na = 1st gen ( popup headlights)
nb= 2nd gen (without popup headlights)
A 2002 is a nb
Hey Matt , what is the music in the intro?
Yep, the shaft is also a valve
Arg I still wish you may have installed a zerk fitting for grease
Michael Denton there’s no need to grease a steering rack,if anything a little oil in the rack
How is tis psoble? I knever maces mistackes... evah!! 😂
Instructions? Not when there's youtube!
Yep not reading instructions is definitely a man thing!!!!
Are the TH-cam analytics meeting your goals?
Has anyone taken a shaft from a manual rack and fitted it to a power unit?
They have different ratios.
Urcha
It's a man thing the number of times I've had to take something apart because I missed putting a piece in I've lost count so don't knock yourself
👍👍🇨🇦
It’s a man thing.
Kind of like giving another man directions to get somewhere.
Drive 5 miles down this road and turn left at Bob’s Liquor and Guns. Then 3 miles and turn right at the nudie bar then make a left at the old Johnson’s place that burned down 3 years ago.
I'm definitely unsubing after that major clanger Matt😀