JAMMED in Gear after wreck? Mazda Miata Manual Transmission Teardown
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- Опубліковано 12 бер 2024
- For MIATA parts Email us at Sales@Importapart.com or visit www.Importapart.com.
Here's weekly dose of your catastrophic engine forensics! Every week you can find a new teardown of some abused, misused and/or poorly designed engine. Here are some of my favorites:
GM Vortec 8100 • LOCKED UP BIG BLOCK 8....
F150 5.0 Coyote Gen 1 • 11-14 Ford F150 5.0L C...
8.0L Ram V10 • 8 LITERS OF DESTRUCTIO...
Audi V10 • DEVASTATED Audi S6 5.2...
Today, something different! A 5-speed transmission from a 2000 Mazda Miata! This transmission has 113K and we could not get it to shift in or out of gear. It seemed to be stuck between gears and likely from the wreck the car was in. This video is both a salvage operation to get the bell housing and tail housing off to fix broken transmissions, and a fact finding mission to try to figure out what happened.
I own and run a full service auto salvage business called Importapart and we specialize in Miatas. Don't hesitate to give us an email at or message listed above for parts!
I hope you enjoyed this video, as always I love all of the comments, feedback and even the criticism. Catch you on the next one!
-Eric - Авто та транспорт
We like different, don't we boys?
Yes, yes, we do
Yes sir
Oh yes
Yes ⚧️
As a matter of fact we do!!
Ok, the blue tape under the shift knob just confirms what I suspected. I owned a 2000 Evolution Orange Miata with just over 100k miles in Mississippi that I wrecked on June 11th of 2023. I purchased the car in the spring of 2021. It shifted ... ok... before the wreck, but when the tow truck was loading the car, I noticed the rear tires were not rolling and I assumed the transmission was jammed. The wreck occurred as I was driving on a two lane highway at about 45mph when another driver in a Dodge Challenger (rental) turned across my lane about 30 feet in front of me. I had no room to Dodge... the car and had to settle for standing on the brakes. No major injuries to the occupants of either car, but I was sore for over a month from the seat belt. I have been a follower of your channel for a while and hoped that somehow, my wrecked car would end up on your channel. Got my wish. Glad to hear the engine and other parts were salvageable and still live on. I miss that car.
Wow man! First off, I’m glad you were ok.
Secondly, we sold the engine, torsen swap, rear bumper and a handful of small parts almost immediately. We gobble up NB’s and I’m not surprised with the Miata content that some day someone will recognize their old car.
That's so cool that u happened to see the car on this channel. I hope you continue to stay pain free from that accident. Very lucky. F-ing rental cars :-(
Malice in the rotational switchey palace...
Eric is out here doing what 90% of what shop teachers should do. just tear stuff apart and talk about what to look for and what might cause it. Hell this goes for pretty much everything that you physically interact with. I learned so much, in less than 30 mins its insane
It goes against modern mantra though. They want you to toss and buy new, rather than repair or rebuild. There's a reason why the saying "they don't make them like they used to" exists, though it's a shame. This was by and far the best explanation of the basics for anyone and we need more content like this.
100% agree. I have learned SO MUCH about engine internals and different failure conditions watching your videos
And then have the students put it back together from memory 🤣
💯
What should the other 10% of shop teachers do? Resign?
The shifter was stuck because the inertia from the wreck caused one of the shift hubs to move without the shifter being in that location. The detents between the shift shafts keep you from going into 2 gears at once. To fix this you can remove the reverse light switch and use a screwdriver to force the shaft back to the neutral position, thus aligning all the shifters again. I worked at a Mazda dealer back in the 80s and 90s. I was in the first Mazda troubleshooting contest in Arizona in 1989, I made 2nd place. Thanks for all the great videos! I really enjoy your channel. Keep up the good work.
Its reverse gear...common problem, easy fix....happens a lot in shipping and being set down hard standing bell housing face down or front impacts...the gear is only held in place by a ball detent between reverse and 5th on the internal shaft and can move forward jamming up the forks....Some trans you can get to reverse gear through the fill plug...slid it back and your good. In the video it was 5th/reverse shift rod that was out of place, moved forward...the shift detents keep you from getting into 2 gears at once and can not get jammed up or its broken...
Google "Miata stuck in reverse". It's an easy fix by just pulling the reverse switch and using a screw driver to reset the linkage. It happens when people FK around with the gear stick and shift direct from 5th to reverse when stationary
@@SLYDITthere’s a lockout to prevent you from going 5th to reverse.
Outstanding video.
Old guy here I'm sitting here on the senior center bus from a Walmart run.
As a kid back in the late 60's I had a old 1965 Mustang 3 on the floor and I had to rebuild the transmission.
It was my first time doing anything like that.
It did work after that also.
Me too, 1st car 1963 260 V8 Comet, blew the trans, took it apart in my parents basement, went and got the needed parts (cluster gear and 2nd) from a Ford dealer put it back together, back into the car and it worked perfectly. Next car 1965 Mustang changed it from a 3spd to a 4 spd, I had some paper route customers that worked at Ford that got me a brand new 4 spd, (smile). Ford top loader, one of the best 3 & 4 speed transmissions ever in my opinion. I pulled the one out of my 70 429 Cobra Jet Cyclone Spoiler once to work on the clutch and it was the first one that I just couldn't use muscle back in. I was working pt time at a gas station while in the USAF and the owner said here set it on this floor jack and we got it back up & in NP. God how I hate being old now, 75 in May, Tear.
@@George-EdwardsOoh that top loader is a great one to drive a car with
@@George-Edwards I've blown a lot of trans in my car but never needed to rebuilt nothing... Hmm I'll keep it in mind and send them an invoice if something goes wrong down the line...
@@George-Edwards For some reason, I tore up the Munchie transmission in my Pontiac GTO several times. Being an aluminum case, I could muscle it in and out.
303 Toploader. Good transmission
The fact that I finally get to see the inside of a manual transmission since I drive one. It really lets me know more about how I'm driving! And I'm so happy that I don't set my hand on the stick! 😂
I only hold mine when in third....to stop it from popping out.
@@frankdesbaux I've only had that happen once while I was on the highway and I hit what I would consider to be a speed bump from the road. Buckling but since they fixed it it's not that bad anymore!
@@MrHanichak2 You need to drive older crap then.
What’s a shop teacher???
@@frankdesbaux so what does old mean to you? 10, 20, 30 years plus?
I almost spit out my soup during your intro. almost.
lololol
He said the quiet part out loud!
Intro was way wicked funny. And your honest approach to business is something we don't see much anymore. Thank you. Cheers Sir.
You have earned a new fan, maybe your youngest fan ever...
A few weeks ago, my grandson, just turned three, joined me behind my computer watching you tear down an engine. He stayed there watching for over ten minutes and then went to some other occupation. Ten days later, he joined me and immediately asked me to put on a video. I suggested a cartoon, but no. He wanted to see mechanics. I switched to a car repair channel like Rainman Ray's, but he insisted that I switch to "the channel where the man takes apart things". I opened up one of your videos and he was happy ! He stayed watching for quite a while. I think that my next gift for him will be a set of spanners... 🙂
Watching you abuse that 3/8 stubby impact was what made me finally get one for myself and my obs lsx build
🙌🏼 OBS 🙌🏼
he doesnt abuse it at all, he literally breaks the bolts with a bar or rachet, then uses the impact to get the easy stuff. he's being delicate with it if anything lol
This was a fine teardown, didn't mind that it wasn't an engine at all.
I'm not much into cars, buf your videos I do like to watch. Partly because of the comedic bits here and there, but mostly because the sheer amount of knowledge you have explaining the teardowns. Also the integrity you show for your shop is a huge plus, so keep it up!
I'd call it rebuildable, but she's tired, and not worth the cost.
Love doing something a little different. Keep it up!
Hey Eric, thanks for that one! Never seen a gearbox dismantled like that
I love how humble you are man.. you deserve every bit of success that comes your way
Integrity. Eric is the definition of integrity. Entertainment is just secondary.
As the owner of a '92 NA I super appreciate this video as the shop manual makes the dis-assembly of the transmission seem way more complicated. Luckily, when I have done fluid services on mine I didn't get glitter mud, and the plug magnet was pretty clean.
Something you know but forgot to mention, the shift knob area has its own separate fluid from the gear area and I run SuperLube Synthetic Grease instead of fluid there - makes for buttery shifts.
In case you did not know: Superlube grease is available in several viscosities , one of which (NLGI-Grade 000) is like honey and is ideal for this application. NLGI-Grade 00 is the next stiffer grade
I learned as a teenager in auto mechanics to not use the gear shift as an armrest or the clutch pedal as a footrest.
Had a 90 mx5 , a known problem is a weak detent for the shift interlock dog. Had the transmission locked in 1st and reverse at the same time. Easy fix, (10 minutes under car) remove reverse switch and move reverse fork with a screwdriver. Dog then can move again. That transmission was fine for another 250k miles. I image a lot of people replaced their transmission because of this easily fixable issue.
I liked this, because I'm a huge manual transmission fan, but also because I've owned the RX-7 version of this transmission for 26 years, in the form of an FC. Glad to say when I've done my fluid, I saw nothing like the sludginess you found here.
Love the intro & the midweek videos. A little hump day happiness to get us through till Saturday! Thanks Eric!
Now he is a Gear head shifting into high. don't let your gear run dry. Thanks for the transmission show.
I agree with Eric 100%. Too many red flags with that transmission. Not worth the risk.
Nice to have something different for a teardown, it was very interesting.
Thank you
I've actually got an NA Miata right now, with that 5-speed transmission. Its so awesome, seeing how it works. A lot of us enthusiasts love to go on about how simple manual transmissions are compared to automatics, but there's still a lot of admirable complexity in there.
Design of manual transmissions, with all the synchros, shift forks, and gears compactly fitted together and set up so that everything works when it should and nothing works in neutral is one of the lesser of the dark arts. (I obviously know nothing about transmissions.)
Surprisingly nice. Rebuilt a FIAT 5 speed in the 70s the input and output shafts were dogged together for fourth. These were worn and jumped at greater than 3/4 throttle.
My Mercedes 307D truck 4speed was caught in a flash flood. Didn't see it but mud was half way up the doors. Everything seemed fine. A month later went on holiday. Came back and the gearbox was noisy and stiff as hell. Drained out only rusty water. Flushed and filled with new oil.....it was fine for another 100k miles (death of truck chassis)
In the late 70s I worked for a TV shop in Montana that had a 1969 Chevy van with a 4-speed column shift. The shift linkage was very flimsy, and if you weren't careful shifting out of reverse, it would leave the reverse fork engaged when you went into first and it would take 5 minutes of jiggling to get it out of first and get the lever back to reverse so you could undo it. My own car at the time was a 1974 Mazda RX-4, which had a 4-speed that I broke by power-shifting from first to second whenever I could because it could spin the tires (hey, I was a kid!). Anyway, great video as usual!
I tore up the clutch in my 69 428cj Mach1 Mustang power shifting, but the gear box didn't bat an eye.
@@wernerdanler2742 The part of the transmission that broke in the RX-4 was the collar that the selector slides on but the gears and shafts were fine. I'm pretty sure the spinning of the tires in 2nd and sometimes 3rd was related to the flywheel inertia at 7500rpm more than the 140hp of the motor!
This is so cool. I own a 1999 Miata, and now I have a much better understanding of how it works. Cheers!
This is a pleasant change from pistons, rods, crankshafts, lifters and came. YES! I enjoyed this video. THANKS.
I had a 72 vega with an opel sourced 4 speed. I broke that one 3 times. The most fragile transmission i have ever swa. I finally broke the cluster gear in half. With a stock 2.3 engine. I replaced it with a Saginaw that was built proof. Thanks for the video.
Sir, that was the best opening 1 minute I've heard in a while. There needs to be an award for that. : )
Love the teardowns and mechanical content, but it's the business logic/commentary that make this channel super unique and valuable for me. Thanks for all you do!
Oddball tear-downs are the best! The business side is always cool too.
Good one, Eric! Transmissions are fascinating. I know enough about them that I’ve vowed never to take one apart…
A surprise to be sure but a welcome one at that
Transmissions are fascinating. Thanks for the teardown.
Thanks for this one Eric! Seeing the teardown gave me a much better understanding of what goes on - and what can go wrong.
Eric is the medical examiner of the car world… doing autopsies, taking dead stuff apart not worrying about how to put it back together and make it run. So much less stress than being the doctor… his patients are already dead!
love it man, ive learned so much from you i cant keep track, the way you take things apart while talking about it is great.
Great vid. Mixing up content every now and then is good (variety is the spice of life), and you’re a good dude who cares about his customers. 10/10 would buy a beer.
Hey, this was a great tear-down! Thoroughly enjoyed watching the working gears and your explanation of the shifter/gear relationship.
I feel like I'm watching one of Richard's videos from Precision Transmission.
I rebuilt my 4R100 from my 2001 F25 PSD. I had no clue what I was doing and was drunk the whole time. Six years later, still my daily driver.
I enjoyed seeing a transmission teardown, thank you!
Thanks , love all your teardowns.
Thank you for taking the time to show all the parts and how it works. Very interesting.
Thanks for this tear down, I learned not to rest my hand on top of the shifter!! Awesome to see how the gears interact!!
It fantastic to see something different. I could never fathom out how the hell gears worked. But a big massive thank you to you. I now have some knowledge of what goes on. Keep up the great work Eric. See you next teardown.
Loved it! Always fun viewing! Thamks
That was cool. I learned something new today. I have never done anything with standard transmissions.
Worth mentioning that 4th gear in this transmission(assuming these are single overdrive units) isn’t really a gear in the conventional sense. Selecting 4th simply ties the input shaft to the output shaft, for a ratio of 1:1. When any other gears are selected the input shaft spins the counter shaft, and the counter shaft spins the gears on the output shaft, whichever gear is selected is connected to the output shaft via the hub and collar assembly.
Excellent Video, I'd never seen a transmission pulled apart before. Very cool!
I really like your introductions with extra info like the failure prone years, etc, very good to understand what second hand cars to get, thank you ❤
Thanks for posting this operational. I have not seen a 5-speed (exactly like this, except for housings), since 1980. Mine was a Borg Warner 5-speed in a 1978 Buick Skyhawk.
.
As you were shifting it through the gears, I knew, a priori, exactly what was going to (and did) happen (happening), as I had watched mine during rebuild.
Nice change up from the always enjoyable engine tear downs.
Ahhh love a manual transmission breakdown. Pretty cool to see that one small nylon bushing can bring everything to a complete stop. The Miata guys would appreciate that.
Decent amount of forbidden glitter in that one.
I had suggested a failed cvt but this is also good, he is always super good about listening to his viewers, i think he did like 3 engines i asked for, best engaging UA-camr i know, I’m a genuine fan and i will watch every video he puts out!
I'm happy to see you are tearing in to something different than a engine for a change! Going to be a great video! Thanks for sharing this with us!😊
Great vid! Fun to watch.
Funny thing, I woke up today hoping for one of your mid week videos, and thought to myself "it would be cool to see some kind of gearbox or transmission teardown". Low and behold, this came up! Love that you're branching out to keep up the variety of content Eric. Thanks for another cool vid.
I appreciate your channel man.
Awesome video 👍👍 My Dad and I share a 2000 Miata SE and this video in particular was very interesting and learned a great deal about this transmission. As always, your videos are very informative and enjoyable. Keep up the good work. Enjoying your videos from British Columbia, Canada eh!!
Pig mat should be a sponsor at this point....
If they haven't secretly given him 5k in cash in an anonymous envelope they're crooks
If they haven't secretly given him 5k in cash in an anonymous envelope they're crooks
Bet Eric's been tempted to use some when changing diapers (lol!)
Love your vids bro!!!
Laughed so hard at the thumbnail it looked like you were about to absolutely rock that transmission
I always wondered about the resting of your hand on the shifter while driving. Thanks for the explanation.
Excellent video
Love the tear down. Always wondered how a trans worked. Many thanks
From kansas
Great video, love seeing the guts of a transmission!
Absolutely love your channel, Peter. Going to be nice watching you restore this beautiful Tundra to its original state. Cheers my friend.🇨🇦🇺🇸👍
Oh i very much like those changes of pace ! Even if engine teardown is the star of the show, these "side projects" are very interesting. I assure you you don't have to apologize for it. Don't hesitate to try different things, i'm sure we would all watch whatever you do. In my case (and probably others), it's because i'm passionate about the subject, AND, your personality makes it so much better.
I very much enjoyed this video. I have never seen inside a manual, and probably never will in person. I like learning about stuff in general, especially anything mechanical, so my vote is for more like this.
I learned a lot from this, thank you!
Transmission's back on the menu, boys!
Cool change of pace. I like it!
This was a great video!
I’ve been wondering if you were going to possibly take other big items apart.
I love to see the internal workings of mechanical engineering and you explain it in a way that we can all understand it.
Thanks!
Thank you Eric!👍
Good teardown. 👍 I replaced a second gear sychro in a 1984 Mercedes 190D, not too bad of a job. Manuals don't scare me but automatic transmissions do.
Excellent, great stuff!
keep the different stuff coming!
Enjoyed the different subject.
Yes we like different! Thanks Eric!
Was worth every second of watching it.
Thanks for sharing, great education on how manual transmissions operate.
Looks like a fairly sturdy gearbox.
Hope this is a new trend, I like your midweek videos
Really interesting video!
Stay safe up there this afternoon, looks like some rough weather headed through and tornados just outside St Louis.
Very educational video, always impressed with the amount of engineering and technical expertise that goes into designing and construction of vehicles. I hope all mechanical trade apprentices get to watch these videos!
WOW amazing TY so much ,,Keep up the great work
I liked this video, thanks for posting:)
Man FINALLY! There’s like 2 Miata trans teardown videos on YT, and none of them go into this much detail of the parts and pieces. And none of the other ones are NB gearboxes. The factory service manual doesn’t show transmission teardown at all. I do have a whirring noise that stops on clutch pedal in, so I assume it’s the ISB. might have to look at replacing it someday and this video will definitely help. Doing the Miata gods’ work!
It's good to see Blue doing detailed work @13:50. He's not just a brute.
I had a similar with a FWD transmission. It was tough to get into gear and sometimes I'd have to coast a bit. So when I got the car home (I'd not long bought it off my mum in a bit of a car shuffle !), I changed the gear linkage bushing* and the gearbox was fine for the 30000+ miles I put on the car over the next year and a half 😀
Thanks for this one, instructive and it's good to look inside all the different bits and pieces that make up our cars :-)
*Instead of the shift lever going straight down into the back housing, the lever went down to a rod that went forwards to the FWD transmission. Then there was a cube-ish bushing that linked that rod to the one going into the gearbox. The bushing was shot there too ... Think that was like a £10 part and an at home fix. Job's a good 'un :-)
This was a really interesting video!
Great video sir, it gives neophytes such as myself a very good education!
I really enjoyed the tear down of the transmission please do more videos like these and include other car parts example differentials
I watch so many of your videos, it feels like i know you.
I had a 1987 Mazda B2000 that I had a hard time shifting from 1st to 2nd when it was cold. I bought the truck new. Yeah I know, I should have taken it back to the dealer to look at or fix. One day I was looking in the back of a Car and Driver magazine and saw Red Line oil. So I bought three or four quarts of their MTL oil. What a difference. It shifted like butter cold or hot. I recommend that oil to anyone with a manual transmission.
Enjoyed it, transmissions are fascinating feats of engineering
Man the looks of an RX anything, with the actually living with in real life of a Miata engine, would be a sweet ride