How To Rebuild Mazda Miata Shifter ~ Loose, Worn, Sloppy Shifting
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- เผยแพร่เมื่อ 26 ส.ค. 2024
- Learn how to rebuild Miata MX-5 shifter. Worn manual transmission shifter is a common NA and NB Miata issue. Rebuilding the Miata shifter is great way to fix a sloppy or loose shifter. In addition to fixing the manual transmission shifter, learn how to fix a leaking turret, install new shifter boots, and fix a small transmission leak. You can also follow this guide to install a short shifter on a Miata. #humblemechanic #miata
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Disclimer:
The content of this video is available for informational and educational purposes only. It is not intended to be a substitute for the professional advice of a mechanic who has personally inspected your vehicle, nor does it create a relationship of any kind between the Humble Mechanic and you. Every situation may be different, and the Humble Mechanic does not make any warranties, whether express or implied, as to the accuracy, fitness, or applicability of the information or automotive parts portrayed in this video to any project and makes no guarantee of results. The Humble Mechanic and any sponsors of this video will not be liable for any damages related to personal injury, property damage or loss of any kind that may result from the use or reliance on this video and/or any automotive parts represented in this video. You are using the information and automotive parts portrayed in this video solely at your own risk.
I just bought my son a Eunos Roadster (RHD JDM version of an NA Miata). He cant afford a mechanic and we're fixing all the quirks ourselves so content like this is invaluable to us!
My takeaway from this is:
- Ripped rubber is bad
- Running dry is bad
- Polish the rod
- Always use lube
- Slide the rubber carefully over the rod
- Snap the rod into the hole
- Rubber is for protection
100% this. And be sure to always get permission
All words to live by
🤔
Also boots aren't gaskets
The most important step is getting permission from the wife to use anything from the kitchen. Great vid. Charles.
After she see the video
She said keep it .
After watching a bunch of different videos on this I’m so glad I found this one. Fantastic advice, straightforward explanations, and good lighting throughout.
Love the content!! Thank you sir.
"A 10mm socket... if you can find it..."
Never to be found again
@@HumbleMechanic I found it, and another one, plus 2 10mm spanners. Now, to find that 13mm spanner, I know I had at least 5 of the darn things, but all I can find are 12mm sockets, and only some bolts fit.
You found it after bought new one.
That hits home
Not sure why people say they can’t find their 10mm socket. I have the same ones I’ve had for 20+ years. Don’t recall losing any sockets actually.
I am not sure I mentioned it, but the oil residue is from the rubber boot being split and sloshing fluid out. I could have probably not resealed that housing. If those boots are split you can get a leak like this.
i don't have a miata, i'am 15 years old but i'm still watching because maybe i will own one
LEARN ON My friend!
@@HumbleMechanic always :)
I'm 33... bit same thoughts here. One day I might own one..
Old miata is cheap.
Push on! I'm 16 and I just got my own Miata a few weeks ago. Save up and convince the parents lol. Good luck!
Who would’ve thought that after selling my GTI and buying an nb Miata I would find myself right back on a HumbleMechanic video.
Quality (and much appreciated) as always Charles, now please bring back Cars With Cocktails!
HAHA HELL YES!
Excited that you got an NB Miata! Can't wait to see what mods you go with.
Another very comprehensive how to video ! Anyone with minimal mechanical skills could do that job by watching it.👍👍
thank you!
Why oh why couldn't I find this video yesterday. Managed to install a short shifter somehow, a 1h job that took me 4h and 4 different youtube videos, none of which ever got into the exact minute detail of instalation like you did.
Subscribed for next time! 🎉
I noticed you forgot to mention the toothbrush you used for cleaning. DO NOT USE YOUR OWN TOOTHBRUSH!!!!!!! The wife's toothbrush is completely fine to use.😂😂😂😂😂
DAMN! I did. I also used my wife's brush so I wasn't worried. HAHA
Currently have been watching your videos and doing work on my mk6 GTI! Just bought an NB2 miata earlier this month and I can't believe my favourite VW mechanic got one too! Can't wait to see what you do to it :)
Awesome
that was a smooth video cut from exposed-pins to towel covering it. great tutorial, exactly what I need for my miata
I get a miata and this comes up on my feed! Thanks humble mechanic 👍
Sweet!!!
When I did mine, I just took an old beach towel and cut a hole in the middle, draping the rest over the interior carpet. Like an operation.
HAHA I like that!
@@HumbleMechanic Kept the carpet super clean. Twenty year old stank gear oil never scrubs out.
I am glad you asked permission this time. 😀 That Pyrex measuring cup is still missing from the kitchen I'm guessing!
Hahaha I think momma is cool with it. Gives her a reason to buy another one
Great video! One thing to add is that on 2001+ NBs there is an extra screw under the power window assembly. There are tabs on the front and back of the assembly so you need a credit card or something to pry it out gently. Then you can take that screw out and the console will come loose. Otherwise spot on!
I'm like 90-95% done, takin my sweet ass time. Just wanted to say thanks for the very thorough and also concise video. After a quick scan, I only referenced back to your video whenever I needed another refresh. Noticed a few other videos skipped important steps/details that I would've overlooked/forgot about, due to lack of experience. This video made this job very easy for me (and possible haha).
Great job Charles! Just don't give up on VWs, please.
Never!!!! Maybe one day the worlds will come together
the brass bushing is a great mod to do to
Thank you sir iam waiting your video Nice 👌 video 👍
Thanks for a great video! Like the clip at which you talk….quick but clear.
Most quality video on rebuilding the shifter thanks g.
Holy shit just took mine apart and I have a completely different turret
All 10 mm sockets should be painted a bright color. The last time I moved I found 4 in my garage along with random missing torque wrench that was likely dropped behind the bench. The many Sunday night repairs to get the car on the road Monday for work.
Great job Charles ! Looking to do mine soon. On a side note just turned in my 16 GLI (end of lease) Man I miss that car!
That’s a great year for the GLI
Love the channel been a big fan since the early days keep up the great work! I had a quick question I know this is off topic but I need help, if anyone here or you can point me in the right direction it would help me a lot.
Heres whats going on, I have a 1991 jeep cherokee 4.0. 217,000 k miles on it, it was burning oil so I had no choice but open it up and see what is going inside.
Took off the head saw bad burnt values so I started with the head took them all out cleanded them up and did value job with compound and that rubber tool to re seat them everything looked perfect after that seat was perfect also value steams where changed few months before this so they looked OK. After the head I saw the block walls where smooth with no cross patterns left, so I took all the pistons out rings where not stuck or brunt they moved freely, next I re hoaned the walls to make the crisscross pattern I removed all the rings and cleaned all pistons up everything was super clean and rings where moving like they where new I also replaced the piston bearings cause they showed sign of wear. Before I put everything back I did a simple test put one piston in and poured oil on top of it to see if oil would drop through the rings left it for 2 days no oil went through I did the same test before I did the hoan and clean up of piston rings and oil fell through within hours. So I thought this was a good sign. after hoaning and ring clean up I believed rings where tight and no blow by was going to happen. Then I put everything back in. the car stared perfect and I thought everything was great then I did compression test each read same reading 125.125.125.125.124 126.
So I drove it about 100 miles and oil was below safe line, OKi though maybe the rings need time to set in new block walls but no 1000 miles later I'm burning even more oil then before almost a whole quart every 70 miles that's really really bad.
My mistake I feel is because I didn't replace the piston rings ? But they looked totally fine and where moving with ease.
Please what do you think I did wrong here? I don't want to give up on this jeep but this is crzy how much oil it's going through I'm willing to take it apart again trying to fix it, currently it has good power no blue smoke but the oil I just disappearing. Sorry this is so long but I'm so lost and any help would be greatly appreciated.
Could be piston rings. Is the oil burning? Meaning smoke from the exhaust?
@@HumbleMechanic no it's white smoke not blue
@@HumbleMechanic
So my My compression on all 6 cylinders is between 125 and 126. Is that super low? Or just low? What if I went and bought sleeves the for block, would I have to to get all new pistons? Definitely new pistons rings
@@Mrizing you ever get it figured out?
@@lukerinderknecht2982 hey thanks for asking no I haven't been able to get my oil so stop it from burning. I need to get off the net but I will write tomorrow s
And as best as I can what I did do the jeep engine. Thanks I hope u help me.
If you put a clear hose on the end of a baster then you can do this stupid easy.
Also getting a scuff bad from the kitchen and some vinegar really cleans these up quick and easy.
I remember when you did the shifter bushings on the R32 (fantastic video btw), just out of curiosity, how much more difficult would it be to do a shifter bushing kit for a 20th anniversary Mk4 gli? Anything to watch out for specifically before diving in?
It should be exactly the same as the R32. So only 400x harder than this car. Hahahahahha
@@HumbleMechanic LMAO 😂
I cannot stress enough how tough those pins are to smack out, like I had a pretty heavy hammer and smashing a punch into it on the floor making dents in the concrete floor tough (exaggerated). Anyone doing this make sure you got tools that can really smack on those pins.
I didn't notice the orientation of the shifter. It went in both ways. My shift knob is 180 degrees out. I fixed the shifter knob lock screw and all is fine. I don't know that it really matters. Shifts the same as before.
Wife: "Charles, where's my casserole dish, turkey baster, and measuring cup?"
Charles: looks around sheepishly...runs for dear life!
Now we know the truth about the garage door. The missus ran Charles through it!
Hahahaha it was a disaster
None of those screws are Phillips...they’re JIS cross-head screws. Using a Phillips will damage them. (I chewed up a LOT of screw heads before I learned that.)
Late ‘80s Mazda B series trucks had the same nylon bushings in their stick shifts.
Not many know about the JIS screws,getting harder to find proper screwdriver
@@nickpappas4133 for a Japanese motorcycle, use the tool kit screwdriver for the screws. Do not use the tool kit spark plug socket for the front axle bolt, because it will likely bend it for spark plug use. A lot of people replace the x or flathead screw heads with allen head screws.
what a great informational video! THANK YOU
Sweet Vid! Now I know how to spend the weekend! Love these Miata vids. Glad u made in back from Finland 🇫🇮.
This wouldnt help the problem of getting into 1st gear would it. Seems like ours is fickle if the car is going more than 5mph.
Possible. If that cup breaks it can be tricky
Might as well try! Ur the best Charles. Keep up the great work! I tell everyone about ur channel 👍
Thank you!
Thanks good video good explained information n understandable .thank you
same design as early jeep manual trans, that damn bushing always was sloppy
Cant wait to see him replace the transmission mount
Hahah yeah mine is a Bluetooth mount.
I'm a little late to your channel, sorry . I just bought a 2018 R and will be closely following your build for sure! Just curious if your\'re swapping a SC VR6 into the Miata? I feel like you might be the first to do that
for vw hot change the reverse lock to the newer desight like in t5 pull up
I would add a lot of Fluid Film spray on both sides of the rubber parts, so they do not crack from age as quickly. It is made from lanolin from sheepskin. Not for door gaskets- use silicone spray or Mothers VLR spray instead.
Dang what’s the rubber made of. Lol probably a solid idea
@@HumbleMechanic most rubber now is not the sap from a rubber tree like the old days- it is made from fossil oil and chemicals. I use Mothers VLR spray for interiors- made for vinyl, leather and rubber. Fluid Film spray is good for most rubber, leather and motorcycle chains- it does have a slight bad smell. The Mothers VLR spray smells good. I use Turtle Wax Trim Restorer for hard unpainted plastic inside and out. The Fluid Film spray might damage door gaskets. I prefer the Mothers VLR spray instead of silicone spray because it smells better, but the silicone spray works better for side window channels. Silicone spray will ruin oxygen sensors.
What type of grease can be used for the shifter? Does copper grease work?
The simplistic way clean scrub rub redo clean grease reinstall with new clips seals woo
I’m going to HR in the morning lol, you said to lube your shaft to slide the rubber over it
😂😂😂🤪
The Best.
16:28 the miata does not have transmission mounts the transmission is held in by the engine and the power plant frame attaching it to the differential
thx mate!!
Great video. Thanks man
what gearbox fluid is that?
Even with the plethora of lights, it seems like the lighting is off. Oh wait, screen brightness! Perfect!
Any need for antiseize on the bolts in the trans housing?
I didn't use any. But I rarely use any.
No need, it’s all aluminum.
Are you using Lucas Red N Tacky grease?
You can't improve the transmission wiggle with trans mounts, because there are no trans mounts. Miatas have two motor mounts and two differential mounts. The trans is solidly connected in between the two (with the PPF bridging the trans to the diff)
Got some freshy engine mounts ready to install
top video ! thank you !
is there a reason to remoove the pin at 12:08 whilst the turret is in the car? seems like it would be easier to replace the seat whilst this bit is out of the vehicle.
I was driving around a Toyota Echo with a shifter so messed up it essentially would kind of flop around as you drove, and the gear pattern was more your imagination then actual pattern. Put it in 1st? Think I'll just slide into the neutral position but just enough to still be 1st.
That is so tough to drive with. LOL
Is the process similar for a front wheel drive car? I have a 1998 Mazda Lantis with a pretty sloppy shifter.
Is the NA and NB the same shifter?
Good information
Nice video👍
"... a 10mm socket, if you can fin it". I just bought YET ANOTHER yesterday. It's right h... well damn.
Hahaha
Is the shifter the same for the NB 5-speed and 1999-2000 the same? If not, will it fit and work?
@HumbleMechanic I test drove a 2001 Miata with a 6 speed and while driving, the shifter was able to move almost freely like it was in neutral. Is that bad bad or can doing the steps here fix it? I want to buy the car but this is one of the things I’m concerned about. Thanks!
Great Job as always. Question, what do you do with the dirty WD40 Cleaner degreaser? Does it have to be disposed of properly?
Well what I did was leave it on the floor, kick it over, spill it, then use an oil absorbent towel to clean it.
@@HumbleMechanic It's nice to see that superstars like you make some of those same mistakes that I make. I hope you didn't break the Correlle ware : )
Surprised you didn't spring for using "Unicorn Tears" (Motorcraft XT-M5-QS), understandable though cause its so expensive. I'm probably going to use Redline MT-90 for mine when I do it soon.
Yeah I hear that’s the best of the best. Lol
I used Motorcraft fluid in my trans and Redline in the diff. RockAuto has the Motorcraft fluid for a decent price. Only 2 quarts needed.
great video Charles
By the way do you know the part number or something related to do this job on an B5 Audi A4 my shift knob feels a bit loose and i want to refresh it. Thanks
There is a whole kit of the plastic parts for this, either aftermarket or from VW spares. Mostly easy to install, though you will benefit from a lot of rubber grease to help with the places where they go into the housings and where all the sliding parts go.
My VW was sloppy, and the one plastic bush for the ball was out of stock, so replaced the rest, and then simply used a lot of cable ties and rubber grease to make the fit better.
Hello! Thanks for the informative video. I have a question I haven't seen asked here. I see you've a roll bar and some sort of speaker box in your miata. Do you know the make/ model of those parts? I'm trying to find which are compatible. Thanks!
I think the PO made it.
"Sealant" is the word for this video :P
I thought it would be turret
Where should the grounding electrode be clocked too?
If you’re going down that path, the majority seem to land on 180 out from intake valves/ injector.
This is one of those things that the theory is sound, and there man be a SLIGHT benefit, but probably not worth the time or added cost.
But I think the next cylinder head I have off I may do it just to do it
@@HumbleMechanic thanks for your reply mate, greatly appreciated.
A little lubricant helps once and a while
Is bsh speed shop still in business?
It seems you’ve realized that lower bushing is metal from the factory and installing a plastic aftermarket one that comes in those kits is actually worse than the one it came with from the factory. So pulling that pin in the NB cars is unnecessary unless someone was harsh enough with the shifter to crack the metal bushing or the weavy washer. AFAIK,the NA cars had a plastic lower bushing and that’s why those kits come with it.
Interesting. I’m learning so much about these rascals. Like the weird rear calipers. Hahaha
HumbleMechanic what’s weird about the rear calipers?
@@HumbleMechanic They are funny. Mine were completely rusted and I couldn't turn the screws to retract the piston. I got a used set from Roswell Wrecking that looked brand new with pads for $40!
No, that’s incorrect. The plastic bushing was OEM on all 90-05 Miatas. The bronze aftermarket bushing is a worthy upgrade when rebuilding the shifter.
@@Patrick94GSR yes, true.....none were metal from the factory, and the plastic fall apart often with nothing remaining.....i just did my '02 5-spd yesterday and it was a sloppy floppy loose shifting mess - a couple tiny chunks of that white plastic bushing was all that remained down in there after 90k miles. The new brass (or bronze?) one makes for sweet snicky shifts.
Have you tried that wd degreaser in a sonic cleaner yet?
No. Sadly my sonic cleaner died .
@HumbleMechanic harbor freight cheap and easy to replace when they break. Love mine. Ill have the to give the wd a run on some random stuff and let ya know
Is it the same transmission as 1992 Mazda B2200 5 speed manual
That I do not know for sure
Would replacing it with a new shifter or short throw shifter fix this in the process?
Yep exactly the same.
A Phillips Head Screwdriver that actually fits the screw would be nice though...
The design of a Japanese Phillips screw and North American is different.You need a Japanese screwdriver for a proper fit.Most motorcycle tech’s know this.A sae Phillips screwdriver will cam out on a tight screw.
Interestingly enough I was in the motorcycle industry for 45 years as a tech, service manager, and finally a technical coordinator for Yamahas International. That’s probably why this stood out so much to me in the first place.
vroom-vroom noises from Bad Obsession Motorsports ;)
YASS!
HumbleMechanic, are you on Garage Amino? I installed the app on my iPad based on your recommendation in an earlier video of yours that I watched. I tried searching for you but came up empty. Thank you.
I was a few years ago. I haven't been on in forever.
HumbleMechanic, thank you for the response. I plan to delete my account and remove the apps from my iPad. As soon as it launched I knew I would not like it. It's just too busy for me and navigation is not intuitive. I have enjoyed watching your videos.
a little trivia !! a chemist told me that WD40 is modified fish oil
Dude please put a short shifter on it! I promise you it make a huge difference! God l miss my Monica!
Get a couple of rubber gaskets also! The wear out very easy.
I probably will. But I want to get a feel for it this way first
The only short shifter worth anything for a Miata is the Miata Roadster shifter which is about $350. It’s the only true short throw shifter that raises the ball and lengthens the lever arm below the ball. All other shifters on the market are just shortened height levers.
@HumbleMechanic
So my My compression on all 6 cylinders is between 125 and 126. Is that super low? Or just low? What should they be? What if I went and bought sleeves the for block, would I have to to get all new pistons? Definitely new pistons rings
That’s pretty low I think limit is 110. Before I did any mechanical repair I’d try some BG compression/Engine performance restore.
If you got sleeves you’d need to have a machine shop do the work. I’d do more digging before I took the engine done
@@HumbleMechanic so u think I should just get new pistons rings and make do a little more Hon? I reason I think that the rings where not bad was able to pour oil after the Hon and put old rings and pourd oil on top to to see if it would seep thour and it didn't for 4 days....... So that made me think piston rings where OK I guess not a good test?
Not yet. I’d do a leak down test and find where the low compression is coming from
Hey @humble mechanic, I redid the shifter in my 99 transmission I'm wondering do you feel the shifter when pulled to the left to go into first and second moves less than when you go to the right for 5th? This car is new to me so not sure if this is normal if I got bad transmission or maybe did something wrong on the install.
Felt great after. Did you replace that little cup at the bottom?I guess make sure nothing is binding.
@@HumbleMechanic sure did with a brass one as well. The movement is fine mostly concerned about the left to right difference. To the left it's a short move and to the right it's a longer move is yours the same way?
If any of the seat of bushing is worn it will pop out of gear.
Sadly my 1998 Golf Mk4 has the same issues
Luckily is a pretty easy fix
@@HumbleMechanic But i have not the Shifter with the PVC ball but with the kinematic.It's only adjustable with the 2 special tools VW 3422 and 3192/2 but I bought both last year and now I found the part numbers for the rolls and bushings.Fingers crossed that all this works.
Thanks again for your great Video's.
Miaaaata!!! :-)))
That wasn't just sound deadening but also heat shielding.
👍
Haha the infamous broken NB1 console lid plastic hinge. What a ridiculous piss poor design. Nice DIY repair from the previous owner with the brass hinges. I used a piano hinge to make a pretty nice replacement. Just need to paint it black.
Yeah their repair was pretty solid. Lol
grease the ball
Why didn’t you just install a short shifter anyway?
Because I want to be sure there is nothing else wrong in the transmission. I didn’t want to add a non-stock variable If something is wrong
2 days Prior the humble mechanic searches on TH-cam “how to replace shifter on Miata”
Nah it was long before that
HumbleMechanic lol
No transmission mounts on these, only engine and differential mounts, everything in between is metal
Ah good point. A strange truth I think. Ahah I have engine mounts ready to go.
HumbleMechanic that’s the power plant frame unique to Miatas. They use it to keep the engine trans and diff all rigidly mounted as one unit, then put the rubber mounts at the engine and diff only. No need for trans mounts or any rubber on the drive shaft. And I can attest that the Mazda competition rubber mounts make a huge difference if your old ones are torn like mine were.
Charles does the wife know you stole her casserole dish?
I asked first. Lol this time....
@@HumbleMechanic lol always good to ask first
Did you get permission on the wife's toothbrush as well ? :)
Lol I actually did. But she hasn’t asked for it back yet
Seems like fixing shifter is the first thing Charles does when he buys a used car.... I dont blame him, sloppy shifter is not good
Hahaha you are not wrong. Funny how that happens
the piece need the grease..because the grease make the piece work nice in peace 😂🤨
TRUTH!
My girlfriend says i should be doing work. Not watching this video *ugh*