How To Build A BMW Engine 

This is a must know if you're looking to buy a BMW

Love the in depth content, so unique to see on RU-vid. Keep it up

Nice build install vid... Lots of good information in this... I just did a rebuild on an N26 and have so far had nothing but trouble getting the VANOS system to run properly. I had glitter from a toasted oil pump (also chain guide issues) and replaced nearly every part and sensor, but due to product availability only ultrasonically cleaned the original VANOS cam actuators. Now I'm playing with weird crank case pressures and lots of VANOS faults. Glad to see you got your vehicle up and running... I really hope I don't have to pull the engine out again...

Your content is outstanding. We all learn that Big Rock Candy Mountain lesson (counterfeits). I wish you'd soon go into your stand-alone efforts for the N family of engines. To the best of my knowledge there is no N20/26 swap guide. The engine just begs to be swapped into just about anything. Keep up the great work.

amazing its give alot of more focus to put it together, not that easy as LEGOs but almost the same but just more precise

You my brother have by far the best content out there. Precise Excellent explanations Absolutely no banana brain music or goofy side remarks. I expect to see good things in the future for you!

Perfect video to listen to while I have my cup of coffee, I enjoyed building my n20 it was nice to get to chat and meet you in person a while back as well! May need some help with e92 335i n54 questions in the near future as well 😅

These look like quite a strong engine design. Not necessarily Mitsubishi 4G63, or Nissan FJ20 strong, but good nonetheless.

IMPORTANT! When using plastigauge to measure crank clearances you must make sure the crankshaft journals and the bearings are DRY (not lubricated). Otherwise, your measurements will not be accurate. Also, never spin the crank when dry.

Bmw engine has 6 cylinders... Sorry Bro 😅 Nice work👍🏻

Sir, I've noticed you're N54 is missing 2 cylinders

did you install the brand new piston in any particular order or just random ?

I recently rebuilt my n20 engine and have no spark. No error codes or faults. Do you have any words or advice ?

Yeah, I think I'll pay someone to build my engine. I'll do diy work up to a point. The turbos & inlets was enough of a hassle. Not to mention rear-end overhaul with all the alignment problems I dealt with later 😅

Hey link in description for my man’s blue shirt there..😂

I’m surprised you guys do not drop the engine through the bottom with the front subframe.

Where do you find the torque specs and other repair info? Looking for a good service manual

I spun a rod bearing on my N54. Was driving fine on a long distance drive. Soon as I heard a knock, I pulled over and turned the engine off. Had it towed home. Have you ever seen anyone replace the rod bearing and keep the original piston rod if the crank is able to be polished? If so, did it last them or spin the bearing again shortly after. The car has been stock the whole life of the vehicle. Has 160k miles. Sorry for the dumb question, I just don’t have another vehicle.

Hey I need your opinion I want to get my n20 328i motor walnut blasted but some people say I shouldn’t because it may damage my engine but I want to get it done what do you think??

I noticed at 17 minutes in you removed the locking oil pump tool. Is it that you don't use it to torque the intake and exhaust gears and just use the timing kit to lock the camshafts and the front gear wheel along with the TDC lock and oil pump lock or do you also lock the flywheel as well? I am at this point currently so just wanna be sure.

Where you get all bolts torque spec

What engine is this?

Wished you spent more time showing the valvtronic thats a bit of a difficult task

Hi Musa, Thank you so much for providng such useful contents. We are a professional steering wheel wrap manufacture and we wonder if you are interested in collaborating with us?

Where is the best place is to buy a rebuild kit?

I love RU-vid ❤

only channel I turn off my adblocker for

How many hp that gives the car ??

And remember folks if it leaks oil it's got oil in it!

send this to your friend who neglect their car and turned it into a non-runner 🤣

16:27 17:20 not the plastic timing chain 😭😭😭

B series engines are technically BMW/TOYOTA no ?

A BMW ENGINE have SIX cilinders!!!...

🎉

I’ve rebuilt my engine with pistons, head gasket, turbo, ignition coils and spark plugs. No leaks engine spins over but won’t start 😢 I’ve pulled all the codes but nothing that should keep it from starting Help 😢😢 Car Scanner ELM OBD2 Version: 1.101.9/1.101.9/iOS DTC report Connection profile: BMW OBD-II / EOBD F-seriesDate: 1/8/2024 4:58:09 PM VIN: WBA3A5C50CF34xxxx ============================ OBD-IIOBD-II DTCs: 7 ---------------------------- P0030 [0x0030] Heated oxygen sensor (HO2S) 1, bank 1, heater control - circuit malfunction HO2S Heater Control Circuit Status: Pending ---------------------------- P1338 [0x1338] Archive (inactive) #8 MISFIRE CIRCUIT - OPEN Status: Permanent ---------------------------- P0366 [0x0366] Archive (inactive) Camshaft position (CMP) sensor B, bank 1 - circuit range/performance Camshaft Position Sensor "B" Circuit Range/Performance Status: Permanent ---------------------------- P0036 [0x0036] Archive (inactive) Heated oxygen sensor (HO2S) 2, bank 1, heater control - circuit malfunction HO2S Heater Control Circuit Status: Permanent ---------------------------- P0597 [0x0597] Archive (inactive) Thermostat heater control system - open circuit Thermostat Heater Control Circuit/Open Status: Permanent ---------------------------- 138104 [0x138104] Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear ---------------------------- 12B104 [0x12B104] Status: Pending, Confirmed, Test failed since last DTC clear, Test not completed during this operation cycle ============================ Engine control unit No DTC found. ============================ Transmission control unit No DTC found. ============================ SRS/Airbag No DTC found. ============================ DSC/Traction controlDSC/Traction control DTCs: 2 ---------------------------- 480A13 [0x480A13] Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear ---------------------------- 480A14 [0x480A14] Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear ============================ CAN gatewayCAN gateway DTCs: 1 ---------------------------- 801C20 [0x801C20] Status: Test failed, Test failed (current drive cycle), Pending, Confirmed ============================ Fuel pump No DTC found. ============================ Suspension/Dynamic management No DTC found. ============================ TPMS No DTC found. ============================ ABS/DSCABS/DSC DTCs: 2 ---------------------------- 480A13 [0x480A13] Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear ---------------------------- 480A14 [0x480A14] Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear ============================ Steering No DTC found. ============================ Car access systemCar access system DTCs: 2 ---------------------------- 804182 [0x804182] Status: Test failed, Test failed (current drive cycle), Pending, Confirmed ---------------------------- D90D06 [0xD90D06] Status: Test failed, Test failed (current drive cycle), Pending, Confirmed ============================ Center roof module No DTC found. ============================ Gear selector switch No DTC found. ============================ Dashboard/Instruments cluster No DTC found. ============================ Infotainment systemInfotainment system DTCs: 4 ---------------------------- B7F80F [0xB7F80F] Status: Test failed, Test failed (current drive cycle), Pending, Confirmed ---------------------------- B7F850 [0xB7F850] Status: Test failed, Test failed (current drive cycle), Pending, Confirmed ---------------------------- B7F8CB [0xB7F8CB] Status: Test failed, Test failed (current drive cycle), Pending, Confirmed ---------------------------- E1C444 [0xE1C444] Status: Test failed (current drive cycle), Pending, Confirmed ============================ Central electronics No DTC found. ============================ Driver's seat No DTC found. ============================ Central module (in driver's footwell) (FRM) No DTC found. ============================ Climate/heater/Air conditioningClimate/heater/Air conditioning DTCs: 1 ---------------------------- E7146F [0xE7146F] Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear

Just so you know, I installed my turbo on my e90 335i all because of your amazing content. Thank you for sharing your knowledge and experiences with us. Its great having you in the BMW community.

Say what you want; BMW engineer their engines really well with tight specs. Installing something less than perfect will cause problems. People say BMW is unreliable but they don’t know didly. Do the maintenance and they will run forever.

Finally a basic maintenance video for my bmw!!

Thank you for that Sunday morning bmw show, sad to find that the crank was garbage after you ran it, but thank you for calling it out, and going through it again, that type of issue is something that an inexperienced builder would never of understood and they would’ve had the same problem and lost complete confidence and in the end scrap the motor. Thank you for this content ❤ and proving you need OEM when you’re doing such technical work.

Great cars again Musa! My father used to say; 'You have to make mistakes to reach the next level!'. And he was right! Thanks for the fabulous content guys, Dutch regards, Nico.

Did you work for BMW at some point??

I have been looking for a digital tq wrench with the degree meter could you share the name or link of the tq wrench you use? I cannot find one anywhere I was looking for one that goes to 270* but 180* will be fine

Great video! I can’t imagine having to tear everything apart again after a fresh rebuild but now everyone else knows what to look out for with purchasing a replacement crank shaft. Nice work on the rebuild I’m looking forward to rebuilding my n20 with a bad rod knock!

I'm curious why you didn't work with a machine shop to help with some of these crank issues. I rebuilt an N14 for a Mini Cooper and found that my main bearing clearances were too much, so I sent the block, crank and bearings to them and the engine is literally perfect without having to buy different OEM bearing sizes. I've put more than 5,000 miles on the rebuild with zero oil consumption and plenty of high RPM use with no problems.

Could you help me, I need to rebuild my engine, it's an N20B20 and I would like to know what kind of spare parts I need for the engine, I'm from Chile South America, there are no components here. I have to bring everything to the USA and I need guidance. There are many suppliers, I need connecting rod metals, crankshaft metals, rings, pistons, cylinder head gasket. Best regards

Very instructive. Even on American engines new parts are often not to specification. New old stock is the only reliable source.

I have the BMW X1 it has the N20 in it. Just wondering about which way the factory OEM pistons go back in as far as any markings. I didn't take them out and he doesn't remember which way they go back in. But it has a QR code on the top of the piston no arrows. I'm thinking looking down at the engine and seeing the pistons already in the bore wouldn't the QR code be on the right side or?

Could you please tell me the correct orientation of the 17mm bed plate bolts? 5 are larger than the other 5 and I'm not quite sure how to reassemble it. Lol please help

Do n54 next!😂 please!😅

One of the best videos for sure… Excellent work

How about a trade for the exact BMW x3 2013 with 100k and timing failure.

I see ECU is refrigerated by intake air like M-Benz but in a turbo perhaps is not a good idea at least in theory. Congratulations once more BimmerN53

Hey musa I have a question for u I’m a bmw enthusiast like ur self and I wanna move over from Canada to USA I wanna see what’s the the best way and potentially learn how u did it is there anyway to reach you so we can talk.

Do this again for n54

Hello, could you tell me where to buy the complete package to repair the engine?

great job, dude! I want to do same thing with N52 lol. I love the engine.

Hood open = in service mode 😂 That's the most bmw shit I've heard today

Hey what up buddy I have a 2015 bmw 528i n20 engine I have low compression on cylinder 1-3-4 90 psi cylinder 2 119 psi I did a cylinder leak down test and I can hear it coming out of crank case remove oil cap and yeah air coming out can these engine be hone ? Or if is out of timing would it give me low compression?

I won't be a D eater ! but you guy's are awesome ! Lolololol aside from how serious things may get we are all just building BMW Motors Correct ? BMW folks be like... serious, no seriously ! but maybe not seriously...relax and build the Motor. Vehicular DIY your awesome bud ! thanks for keeping these N54's running properly everywhere !!!!

Outstanding engine build ! If it’s not made in Germany it won’t work in or on a Bmw .

23:12 The goal is to not smash it, he says. But murphies law had other plans

I wish I had someone to help me rebuild my bmw 325 I 2006

I have a N20 that needs to be rebuilt and how do I get in touch with you

not sure going super expensive OEM bearings was needed as aftermarket can be even better. the issue was clearly just the junk chinese crank. also are you supposed to spin it bone dry like that? seemed smooth but these parts need oil i thought..

there is plastic.....INSIDE the engine??????!!!!!!

Do you live near a military base? heard a mention of skilcraft & thought maybe another vet/service member lol

Thank-you for the video I would like to know what break-in oil you used and for how long did you let it run Before replacing the oil again?

The link to timing kit comes with the oil pump drive as well ?

finally a new video from my favorite RU-vid channel.

build 2 that way you have one when the first breaks down

I’m a truck driver i make decent income but I can’t afford to leave my job and go to school to become an auto mechanic but it is my absolute dream to Be a BMW tech/mechanic. Any tips or advice please help.

keep up the amazing work -

Greetings from South Africa, i own a repair shop specializing in BMW repairs, we have countless engine failures with these Chinese crankshafts and cost our shop lots of money in repairs due to defective crankshafts, stay away from Chinese products and rather try and find good used parts.

Did you guys plug that hole when you lock the timing for the oil pump? What if you don’t plug it?

Chinese crankshaft. I would've never chanced that one but good lesson. Know you know

I just purchased a rebuilt N20 engine for my 328i. The shop claims all new parts but didn't say anything about OEM. How can I find out if I could possibly run into the same crankshaft issue you ran into with the Chinese part and oil flow issues?

quick question is it cheaper to rebuild an engine myself or to just buy a used one for about $5,000. I have an n20 328i and it has rod knock. would i need a whole differnt engine or just swap out whats damaged and rebuild. Also what is a rough estimate for a rebuild in general minus labor because i would be doing it with my brother

How does the N20 compare to the newer version? Edit B48A20T1 I believe from the newer 330i

Head gasket cleaning with chemical or scotch Brite should have done prior to any reassembly

hi. I have a bmw f30 328i. I'm getting error codes. P0012, p0015, P0172 any idea what parts needs to be changed?

Lights on the trunk are broken.

Great content. Keep up the good work.

I've quite enjoyed your channel over the last few years. Especially your n54 content I've built a few engines myself and I've always used Mahle bearings and Hastings rings. Never had a problem. I understand that they don't always make Euro stuff but just my insights! Kindly

Very very cool, What is the next project😁🤩

I just rebuilt my n26 engine. It was my first engine. It drove great for 20 miles and now I have tons of metal flakes in the oil I flush the oil 5 times. I am Getting a ticking sound like it’s in The oil pan. Is it possible that my oil pump / balance shaft is eating its self?

good afternoon......the Crankshaft for the N20 engine can be rectified

What chassis is this for ? I just got a Beamer 😭

Love your channel

WHERE CAN I BUY THE BEARINGS, I NEED X2 YELLOW/RED, X2 VIOL/BLUE FOR THE CONN RODS, AND CRANKSHAFT LOWER X4 BLUES, AND 1 LOWER YELLOW? I already have upper crankshaft bearings THANKS so much!

How do you break in the engine after such a rebuild with new bottom end

Do you have the link to that gasket remover?

Please talk a bit more about the plastic timing guides. They are the main cause of failures in these and other BMW engines. I see you are using plastic guides again but they look like a different plastic. Are these much more durable than the OEM ones? Wouldnt it be better to use steel guides? Yes they might be noisier at first but last more than 100k miles no? What are the options available. Thanks.

first time BMW owner love your content!!!! thank you!!!

What torque wrench are you using?

Great content 👍

Also what happened to the Nissan 240 w/ N20?

What makes the white measurement marks on the crankshaft? Did you add special grease to the bearings?

Where can I get that tool to put the pistons in the block?

How much did you pay for all the parts?

i have the same exact f25 with drivetrain malfunction issues. timing chain was updated but i have metal dust like particles in the oil. could it be bearings? can this be done without engine out?