SKETCHY RETURN? Blown BMW N20 / N26 Comprehensive Engine Teardown
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- čas přidán 24. 11. 2023
- Another weekly dose of your catastrophic engine forensics! Every week you can find a new teardown of some abused, misused and/or poorly designed engine. I've got over 150 videos of failed engine teardowns on this channel.
Today we have a BMW N26 2.0L 4 cylinder turbo engine on the stand. This is essentially the same as the more common N20, with. just some different external parts like injectors. This particular engine is either a returned as defective or core return from a salvage yard. Between the loose parts, multiple heat tabs and other less than normal findings I am inclined to believe this engine has been in several different vehicles and worked on by multiple people.
These core engines always tell a story and its not usually a good one. Lets tear this one down and try to figure out what happened.
Why am I doing this? I own and run a full service auto salvage business in the Saint Louis area called Importapart. Part of our model includes dismantling core and blown engines to salvage the good usable parts from and resell. We do not rebuild engines, merely sell parts to those who do.
I hope you enjoyed this video and as always, I love all of the comments, feedback and even the criticism.
Catch you all on the next one!
-Eric - Auta a dopravní prostředky
Eric: Lets see if she'll turn over.
BMW engine: I shall sing him the song of my people.
I wanted to like this comment more than once😂
Dead engine, new parts? Sounds like me when I put on new clothes.
😉
I feel that lmao
Same 😅
Lmfao
More like getting a boob job
I love when you smash timing chain guides. They deserve the rage of a thousand suns.
They must feel the g forces.
it wouldve been really funny if the shot after the timing guides bit just had smashed guides in pieces on the floor in the background lmao
Especially N20 chain guides. They belong in a dust bin in Hell.
Bits of plastic on the floor that I would step on and probably fall.
all part of the fun@@kthwkr
Thank you for all the extra content this week! Your channel is awesome! Please keep cranking out tear downs, driveway Miata’s and more Lotus!
You shouldn't yield to the timing guide trolls , the coolant pump and oil filter trolls will smell blood in the water .
Absolutely! That's why you should always shatter plastic guides against a hard surface - the banishment spell needs to serviced once in a while.
Would have been interesting if you took the electric water pump apart. I think like 99.9% of the people here have never seen the insides of an electric water pump. Also would be interesting to get a feel for reliability. What kind of bearings do they use? Could you fix/rebuild it if they no longer offer the replacement part?
When you pulled the oil filter, it really looked like a toilet in a gas station, and I was surprised there wasn't a cigarette butt floating in there.... It would have fit right in!
The electric water pump seized and caused the overheating most likely. Driver probably noticed the temp going up, engine light came on, decided he/she was going to drive it home that way, and thar she blew!
Definitely! 👍
Millions do this no brain
Watching while snuggling with the kiddos at bedtime… when you said the ‘the crank should just sheboopee right out’ they all start giggling and repeating it… thanks Eric I know what the most used word will be in my house the next week…
Keep up the good work!
20 years ago an old timer asked me “you know what’s worse than used parts?” I said “no” knowing full well he had a smartass answer. He says “used, used parts” it’s in we’re seeing a case of used used parts here. Really fascinating
The musical coils at the start were great.
Dear PIG Mat,
Please sponsor Eric. He’s good for business.
Sincerely,
The Internet
Very thankful for the 3 video week Eric this has been a Gr8 treat! I’m excited to see what happens to the jockey truck Cummins love the content!
You know it's Saturday when you have an auto-clicker set up to refresh the page at about 7:40 PM CST.
Worth noting that a BMW n26 with no spark plugs plays the Lavender Town theme when you turn it over
I thought it was the theme from Thomas the Tank
Smashing timing guides isn't an intrusive thought, it's the right thing to do.
Plus it's fun to watch/hear.
I enjoy seeing these teardowns. It's personally something I'd love to do if I had the money, time, and even tools and whatnot. Primarily though I vibe with your channel quite well because I always loved to take apart stuff when I was younger, even tho most of that stuff was failed or otherwise nonfunctional electronics stuff that wasn't being used anymore anyways (that I also had permission to take apart too of course.) And while engines differ form what I did when I was young, it still fits in the general "take apart thing and see how it works and what went wrong." kind of deal.
Also a bit of a minor edit but... I have to personally wonder what the percentage of the watching audience of these videos is that is, people who know that timing chain guides cannot be reused, and don't mind you tossing them, as they'd probably do the same(I honestly would. it's fun if the timing guide is either just being removed for good in total teardown or being replaced for maintenance or otherwise), how many people are just trolls that like to just be silly in their weird way by acting like the people who don't know that timing chain guides cannot be reused. And then how many are well... the people who don't know timing chain guides cannot be reused. Like I really have to wonder that.
I got an n20 in my 228i. I actually like it but I am aware it can all go wrong very easily. I stay on top of maintenance as much as possible. Thanks for this one - and the Car Doctor reference lol
you probably be fine. Wild tuning breaks all 4-turbos and second owners buying cheap Bimmers more likely too poor to afford or enforce good services
Dude I just want to say, your videos still have the exact charm that made me subscribe at first. The jokes, the play on words (sediment), and all the antics like smashing water pumps and timing guides that no one in their right mind would buy. Thank you for keeping the channel awesome, always eagerly awaiting the next video!
Thanks of course for the usual teardown tonight, but thanks for the holiday Miata run through. Engine education 😊
B48 was a massive improvement over the N20. However, i do gotta say i still like the N20, as it essentially is an N54/55 with two cylinders removed, and a much, much shittier timing system.
i loved my n20
The timing chain between the N20/6 and N55, N52, N52, S55 are virtually identical. The N5X suffers less failure due to the lack of a remote oil pump/balance shaft, and different harmonics from a naturally balanced firing order/layout.
In the N5X engines, the bottommost timing gear drives the oil pump, which is in the front of the oil sump. In the N20/6, the same bottommost gear drives a balance shaft that runs to the oil pump in the rear of the engine.
Functionally, there are no differences between the "n" 4 and the "N" 6 cylinder engines as far as timing chain layout goes. BMW underestimated the effects of harmonics and oscillation from a poorly balanced engine on the first timing chain guides. They beefed the guides up in 2014 with a superseded part.
The B48/46 is a decent improvement over the N20, at best. I've still blown up B48/46s at my shop. It has a closed deck, beefier connecting rods, and a more ideal main/rod bearing tolerances. balance shaft scenario is better, with twin gear driven shafts. Oil pump seems similar. Timing setup on that engine is a joke, completely unserviceable in car. It's now all in the back of the engine on the output side of the crankshaft. Engine block is even less serviceable than the previous gen engines. It is disposable. It's not if, but when they start needing chain and guide replacements. No car is exempt from regular wear, and there is no such thing as a "lifetime" setup for engine internals, timing chain included. It's still a clunky 4 cylinder.
Don't get me wrong, both the N20 and B48 will get you far. Great, power-wise. They are ok at best reliability-wise. If you have the choice, get an N/S55 or B/S58 powered car. The 6 cylinder engines seem to hold up longer, and it seems a lot of that has to do with harmonics and the smooth nature of an inline 6.
The B49 was even better... Helped us win the war...
The cost of the coolant system repairs that the B46/48 end up needing are substantial
Thanks for all the content this week Eric. The Miata episode was interesting, cool car at your home shop. Personally, I would never buy a BMW, they can break your wallet when they break down. Did you spike that timing guide off camera? I hope so. lol I love the Saturday night teardowns and your comments🤣
Hey,this is my friends engine lol
Older bmws are great except for the oil leaks but I think bmw from the factory makes sure you engine is well lubed from the inside as well as the outside of the block. 😂 The problem with bmw is you should only buy oem or one of the other sellers who make oem certified parts for them. Because bmw aftermarket parts will work but not for long at all and I mean even down to the door handle carriers... I still own a 2006 bmw x5 4.4i and I love the thing it has just about 220,000 miles on it and still runs amazing... I will say though since I've owned it it gets new oil and filter every 4k miles and only using synthetic oil so maybe that's why it's treated me good. As far as parts lasting on them for an almost 18 year old heavy tank of a suv I had to finally swap out the factory airbags in the rear this summer which was a breeze to do.
Oh For anyone who does the rear airbags on an X5 don't expect your air ride to air up with it still jacked up. 😂😂😂 yes it drove me crazy for about 30 minutes trying to figure out why when the light bulb finally went off in my head. But im no mechanic by any means I'm just an average dude who is not scared to get my hands dirty. OH also for anyone that ever changes the water pump in the 2006 N62 engine don't watch the video about the guy who claims you can get the bottom water pump bolt out by not having to take the crank pulley off. Yes you can get the bolt out, but not back in, so just spend the extra 10 minutes of your life ans pull the crank pulley off and thank me later that you didn't try his shortcut. 😂😂😂
Thank you so much for the teardown on Thursday! This has been a fantastic vacation from work
Always enjoy whatever your sense of humor is directed at in each tear down. Sarcasm always appreciated.
3 IDC videos in one week. Best Thanksgiving ever! Thanks Eric!
Thanks for the 3 videos this week!! Always gives me a smile when i see you post a video , always a good time 😎
Eric, you got to show us the Cummins You exploded 😂
How far that little candle throws its beams! So shines a good deed in a naughty world.
Eric , thanks for the great content. I find it cathartic and I watch a teardown anytime I am running on a treadmill or using the stationary bike. It eases the monotony. I’m currently working an assignment at Palmer Station in Antarctica and have been looking forward to watching your content from the 7th continent! Thanks again, Kevin B.
Your ability to learn faster than your competition is your only sustainable competitive advantage.
Most underrated channel 🙌
3 videos in one week?! You spoil us 😊
One of these days Eric is going to work on one of those engines he has in the back and be like "oh hey, a piece of a bmw timing guide, how did that get over here?"
Nice teardown! I have a 2014 428i with the SULEV N26 engine which I love. The engine is very smooth and so punchy. So far its been flawless, but I am on top of the maintenance. The metal oil pan on the teardown tells me that it probably came from an xDrive model. Non xDrives were typically fitted with a plastic pan.
The shape of the pan to accommodate driveshaft/diff, and also the front axle hole at 20:50 tells us it's an xDrive.
Thanks for all the vids this week! Glad you got some parts out of this teardown. Shame a bunch was damaged. How many Miatas could you build from all the parts cars you have?
Spike the chain guides!!!
Thanks for all the videos! Love the skits!
This is why I love watching your tear down videos! This morning I learned about BMW valvetronic… What a weird design of engine. I don’t think I would ever have a car with this engine but I love watching you tear these down every week!
Keep up the good work!
Thanks for all the extra videos this week. That Miata you put back together correctly is a nice car! That video made me want one because they’re so simple.
Valvetronic is very reliable. Surprisingly so. It's the biggest reason these things are so fuel efficient. The throttle body is only there to keep the engine from screaming to high heaven if the valvetronic motor fails wide open. I've got 178,000 miles on my N52, and she purrs like a kitten with frequent oil services.
Eric please tell me you at least spiked that timing guide at the ground off camera
Definitely a builder and worth a trip to the machine shop.
Keep Going, we love it!
Old School Eric is back, knocking out the pistons BEFORE lifting out the crank, been a month or 2 since you last did that.
What a great week
I’m impressed, you know about a lot of different engines. I used to work on many American cars engines 60, 70 80s. I was happy to see you dissect a Coyote engine.
30:00 Eric "The King Of Junk Miatas" surveying his kingdom
thank you for another educational experience sir
I believe those valves had a different look because of the valvtronic system operation but I may be wrong, love the vids keep em coming
I learn a lot from your videos.
I am glad I am sticking with older technology. I have never seen a valve system like that before, or balance shafts. Four pistons, one crankshaft, two cam shafts - done.
TWO CAMSHAFTS?? Young man, back in my day we where happy if we got HALF a camshaft and three valve springs. Four or five valve springs was reason to celebrate! We'd forge the rest of the camshaft from the remains of the Model Ts we had strewn about, and hammer-forge the parts together for a complete cam. Of course, we had to file the lobes to the correct shape, but a cardboard template did the trick.
You kids (including you, Eric!) have it so easy nowadays...
Thanks for giving us a ton of TG content!! Now let me know when you are done with that red 90's Miata!!
Thanks for my Saturday night entertainment. I hope you and yours had a Happy Thanksgiving.
Las a miata owner I love all your builds and disasemblies..
Love watching these videos. I would love to see a N52 tear down
Personally I vote for an epic compilation video of you destroying every timing guide and water pump that's ever been through your shop. Dedicate it to all the trolls.
Make sure to say oops after each one since if you say oops enough times it makes whatever happened an accident.
Love the end of video summaries
Another video. Thanks Eric.
Thanks for the Video! I really like the teardown Videos of the german engines, as in fact im german myself. I know you already made a video of an 1.8t ea888, but of you get the Chance, i would really appreciate a Video about the older 1.8t's, like the agu or similar.
Have a great day!
Outstanding video.
I just wanted to go to bed (Europe). But this video gives me energy for another hour 😂
I am mad that you didn't smash the timing guide. Now you have to pick a side. 😂
I like your sense of humor
Haha....."said what I meant" (sediment). Very clever Eric. Love your channel and the content you put out. I have to say that when I look at these newer generation engines, I have to wonder whether manufacturers are deliberately designing them in an overcomplicated way?? And that then begs the question of why they would do such a thing?!....
Love these engines. Not because they're reliable. They're not. But for the content of a good teardown. LOL. 😊❤
Every time I think about treating myself to a BMW ...for just a fun/mini road trip car...I watch one of your teardown vids on BMW's...that cures me of owning a BMW....
Try a Jaguar instead! 😊
😬😬😬....or maybe a Land Rover ?
We have two. One with this engine, and one diesel. They've actually been great. Maybe I just got lucky. They were lease-return cars. 2014 & 2015. But I do all my own maintenance. Much of the problem is the 10k oil change interval. I ignore that completely and only go about 4k miles between oil changes.
3 videos in what week? I didn't think I was living thatright to deserve it.
Holy Miatas! I'd love to be able to build one out of parts like you!
Was awesome meeting u today!
Whenever finding signs of overheating, you should check the heads for warpage with a straight edge in your videos. OHC heads cannot suffer much warpage at all since that messes with cam bore alignment.
These teardowns are great! I have an engine request: a 1989-1995 ford taurus SHO v6. That would be an interesting one
Hey Eric, sounds like your rotisserie worm gears could use some Red n Tacky. When you were doing the nostalgic flip over, I noticed it may be a bit crunchy, doing the old stop start on ya there. Cheers bud.
Those plastic chain protectors are so delicate! It was obvious that you took the greatest care humanly possible and it still shattered to pieces. What more can a guy do?
nice video. I like the rims on the green Miata ...
Hi Eric, awesome content I look forward to seeing the mechanical ahem you show. I was wondering if you have “done” a 2009 to 2012 Rav 4, 4 cylinder engine with the severe oil burning issue. I saw another channel (Carecarenut) take one (2ARFE) apart for burning over 2 quarts per 1000 miles and it had regular oil changes. Oil was leaking from the intake manifold!
Thanks!
I wanted the electric water pump to get the treatment that the timing guide was going to get.
Have a 2015 328i GT with the N20, it is pretty low miles (78,000) but has been driven by three teen/college age boys. So it's had a pretty hard life. BUT, we have always used 0w30 or 0w40 quality oil (Mobil 1 or Castrol Edge). Not super short intervals, about every 7,000 miles, but that and a good Mahle or Hengst filter. The oil level is near full every change. The car has been absolutely bulletproof so far. The 0w20 oil BMW wants you to use in these is a death sentence for sure.
A core return Jack in The Box...neat!
it's a BMW calliope! Thanks for the vid sir.
For me, the engine is too complicated. As an experienced tech, you dive in. I appreciate your teardowns. Many thanks. I hope you and your family had a great holiday.
Omg, three days in a row. I'm almost spent.
We learned a new technical term today: "Woil"...
I used to have a 328i with the N20 that I tuned to ~320hp (from the stock 240) & boy did I abuse the shit out of it. But that thing took it like a champ. My meticulous maintenance of it is probably the only thing that saved me.
"Of course it's sketchy, it's a BMW," meanwhile, have you seen my driveway? Haha
Thanks again.
I'm the first viewer! I feel like somebody! keep up the great work/content sir.
Fit that chainguide casette to frame and then start keep it in a view on the endtalk so we can see it always 😂
Plastic turbo fins... What a great innovation!
it was Triple 6 for likes when I started watching and went up to 1.3K as I type this.
You know, for those "But That's a good part!" folks, maybe you could offer those bits for sale, at $10 MORE than a new part.
Finally Eric…..👍🏼
The more I see this over-engineered German junk, the more I appreciate Ed Cole and the small-block Chevy. A cute little tin timing cover that does not tie into the heads and oil pan. A tin oil pan, and tin valve covers. If they were torqued right, they didn't leak. And no RTV or silicone anywhere. One short cam chain. A little square rod to drive the oil pump, and a valve train that you don't need an ME degree to understand. I had a 327 CID in my '69 Impala. A radiator leak made it overheat to the point it would not drive. I pulled over next to a ditch, and used a littered orange juice jug to fill the radiator with ditch water. It huffed and puffed a lot. I was a little concerned when I saw the dead grasshopper go into the radiator, but heck, it's a Chevy. I started it up, and it got me home, then ran fine for three more years until I sold it.
your mom likes BMW engines.
Look at the size of that turbo in the background!
The logical side of my brain says it came off a big ass diesel. The emotional side of my brain wants it to have came off one of those Miatas.
i am about 50 videos away from becoming an expert viewer on engine teardowns :D
That was the soundtrack for close encounters of the third kind
Eric please can we get a follow up video of you taking the valve-tronic system apart on that head?
YES A Triple this week!
Tip for BMW drivers: Move your seat as far forward as possible.
That way you can get even closer to the car in front of you.
And disable the airbags, they just slow you down anyway.
I think all of those drivers drive AUDI now, no?!
@@matthewmclean9734removing them saves weight, and the shorter braking distances from the lighter weight would be worth it. (Sarcasm)
They are after all, alphas, so they feel justified tailgating.
Snap Off the useless turn signal stalk while at it too ,it's useless on a BMW
Bummer on the head, but I was happy to see a few usable parts!
Need to have The Lonely Island song ‘Threw it on the Ground’ play when you destroy those guides 👍👍👍 haha
ERIC!!!! Please stop using the channellock adjustable plyers backwards, like you used on the oil filter!! Look at the jaws, they will tell you which direction, will give you the best grip.
Looks like this one has been around the block a few times...
The "kinder, gentler inner Eric" should get lost. The more mayhem the better on this channel! 😁