BMW M47 / M57 Crankshaft Pulley Removal & Replacement

[@bluetit8413]

I’d an E46 320d prior to my current E92 335d. The crankshaft pulley literally exploded one evening when pulling away on petrol station forecourt. Loud bang, followed up by several small noises from engine area, got out to find the pulley in pieces around the car. Still drove it a few days before getting it repaired. Was only 80k on clock, but was 16 yrs old and probably the original pulley.

[@GeorgeAusters]

Yeah likely was the original, very common problem 👍🏻

[@mattl2k6]

I'll be sure to use this as a reference soon as mine is rattling a little now on idle. 160k, 2004 320d. Really wanting to remap it but I'd rather have the engine running 100% sweet before I do so. Big thanks mate!

[@curioussand1339]

Some serious torqueing down there. I have the M57TU2 3.0 engine which has 4 separate torx bolts instead of one big bolt. They are not that difficult to torque down and the flywheel can easily be held in place with a mandrel.

[@scott_ferguson]

Brave man, my toes were curling up watching you tighten that bolt. Nice bit of milling on the tool👍

[@GeorgeAusters]

Hahaha mine were too! & cheers!

[@MrChielo007]

Same here! You saw the whole engine moving while he was tightning 😱

[@engjds]

@@GeorgeAusters The offical locking tool I saw are very short, what wall thickness pipe do you recommend to extend it to the subframe?

[@JUNK4UCREW]

Bro that pulley came off WAY to easy. I had a 3ft breaker bar and a scaffold pole on mine and it took all my 19stone to undo it. Crazy crazy tight.

[@GeorgeAusters]

Yeah it wasn't the original so don't think it was torqued up properly. With that being said, I think my impact wrench would still undo it as it has like 1600nm of breakaway torque

[@philipnorthfield]

Currently have a e61 BMW in the garage and they have had it a week and are telling me they can't get the bolt out any suggestions of what I can ask them to try? Any assistance would be much appreciated as I am concerned they are going to scrap the car.

[@TRUCKERJOES]

Having owned my m47 for 18 years now and with over 467k on the clock only now the pulley starting to give way😎 if you do the work yourself stick to original BMW parts if not then just scrap it

[@jamiealexander3142]

If you struggle, get a mate to sit in the drivers seat, put it in 5th gear , foot on the brake until your finished and then torque it up

[@YoungBloodyBlud]

i assume this doesnot work with cars with automatic transmission

[@iamtheone3816]

No bmw channel can compete anymore

[@neillers100]

Thanks for this video, just had mine replaced. Was in a terrible state, ticking time bomb.

[@GeorgeAusters]

Yep very common issue mate!

[@james_delahunt]

I'm doing one for my mate this week his is rattling 👌

[@GeorgeAusters]

Good luck!

[@superkong81]

Hey George! Big fan of yours watching almost all of your videos from Washington DC. Now, do you have a DIY video of taking out an intercooler? I have a E70 35d with M57 engine and I will be replacing the pulleys and belts soon. I want to take that opportunity to clean the fan and inspect the intercooler.

[@pedjagolubovic4226]

George, your videos helped a lot, as someone commented, no BMW channel can compete anymore I was wondering if you could tell which breaker bar did you use, 1/2 or 3/4? And did you use any glue or something else on that bolt? Thanks and keep going strong mate

[@GeorgeAusters]

Nothing else needed on the bolt, breaker bar just use the biggest you can find and an extension bar because you’ll need it

[@pedjagolubovic4226]

@@GeorgeAusters i only have 1/2, i hope it will be enough. Extension bar is a must, of course

[@Armanos99]

As per the manual, a 3/4 inch drive tool should be used. But I released with a 1/2 bar.

[@mojamalaradionica5091]

Did you damage the engine mounts while tightening the bolt :) You really pushed engine up...

[@pedr0g0mes1]

Hi mate, instead of the locking tool, do you reckon it's possible just to get the car in gear and parking break on, in order to keep that from moving? thanks for these videos, very informative and advert free.

[@danielagyei9987]

That should work, right? I need to change mine as well

[@Error472Trolls]

@@danielagyei9987 did you figure out if it worked? my cranskshaft pulley literally destryoed itself and i need to replace it

[@Priceyy-w6q]

Wrap the belt around the pulley that works without locking tool

[@MrGold-tc4kl]

Do you have any other way to lock the crankshaft, because the link didn’t work and i dont have tool you use to lock it when you installing the new one.

[@N54God666]

my m57 has 4 bolts instead of the single one so other beware of the difference

[@ubaidkhan2077]

Hi George. Any tips on how to properly replace the front main seal? I've done mine but it's still leaking. Also does it fit flush in line with the housing or was I supposed to push it all the way in?

[@bengatss]

Looks, like something wrong here with that extended bar and overtightening. That wheel doesn't pull such weight, to be so much compressed. To much stress on other elements too. Btw, if you compare - at the right side from crank wheel there is that smaller metalic belt wheel, and it is tightened with that small center bolt only, actually a weakest point of the belt components. Once that small metalic wheel got stuck, untightened screw, and broke the belt in pieces ...

[@adrianp4590]

just wodering if you just weld the 2 metal part inner and outer ring with metal over the silikon will this be bad for the engine ?

[@bull7618]

Do you have the design for the locking tool. I’m a mechanical engineering student but I work in a machine shop so will be able to manufacture it myself . Great video 😁

[@GeorgeAusters]

My dad just measured up the voids from the crankshaft pulley and cnc’d them out in a piece of aluminium

[@bull7618]

@@GeorgeAusters perfect thanks. I’ll do some measuring and brake out solidworks 😂

[@grahamepigney8565]

Be interested to see some of theis M47/M57 work actually done on an M57 engined car. Although the M47 seems like a cutdown version of the M57 it isn't and there are numerous differences between the two (apart from the number of cylinders thats is).

[@GeorgeAusters]

I’m sure I’ll do an M57 engine at some point!

[@MrMvaran]

I did it the pulley replace job on my m57n2 engine. Did it all without any special tools. Even removed and installed the stretchbelt again with just a rope and rotating the pulley by hand. Stopped the rotation by jamming the pulley with breaker bar(or anything) on ground to the center on pulley to unbolt and torque. That actually was lot easier than i feared.

[@Sn3peR25]

too bad you don't have a video to replace the alternator but thanks for your video

[@leinad907]

how was the engine not rotating backwards/anti clockwise when you was unfastening the bolt with the impact gun did you lock the fly wheel or something ?

[@GeorgeAusters]

Impacts don’t work like a drill, they work like a hammer and don’t spin the bolt

[@magneticluke2047]

I tryed mine with the original tool and having no luck can u help me 😔

[@aaronwatson5206]

Thanks for the video George! Thinking about doing mine as the rubber looking cracked now. What about leaving it in gear? or it would just move the car slowly lol

[@GeorgeAusters]

Won’t hold it unfortunately👍🏻

[@brarautorepairs]

If anyone had difficulty taking off, then you can get a friend to hold the brakes in gear if it is a manual transmission. The car can be put into 1st or reverse. Will the clutch slip? No, because it is normally rated for more torque than what you'll be able to put on the little bolt. When you install the bolt, you can put engine oil onto the treads to lower the required torque by 40 percent.

[@TC07YER]

Would you consider hiring out that tool that your old man fabricated? Looks way more substantial than the tool you can buy. I need to do this over the next few weeks.

[@GeorgeAusters]

Noy actually sure where it is now if i'm being honest!

[@magneticluke2047]

Also great video very descriptive and great to follow

[@jocalibusohump]

What is the symptoms?Mine is making noise when I turned off.e46 330cd 158k miles now.x

[@paulkett8414]

Hi George it seems every problem I have you have a video to explain which is great! Mines at the garage atm and I'm just worried they won't torque it property like you have should I be concerned??

[@GeorgeAusters]

I would just ask them if they have torqued it up to proper spec

[@paulkett8414]

Yeah will do I'll ask what they have torqued it too instead of saying has it been done to 400nm 😂 thanks for the reply! 🙂😎

[@GeorgeAusters]

Good luck mate👍🏻

[@paulkett8414]

Thanks bud will keep you posted keep up with the great Vids they've helped so much! 😎

[@mariuszgorski3150]

Dobra robota fachowa blokada. Pozdrawiam.

[@martinm8471]

Do you buy bolt separately ???

[@stefanrodk261]

How does bad crankshaft pully sound?

[@SoAExile]

Dude, I need advice asap, my crankshaft pulley snapped in half!!! Somehow the serpentine belt that runs the alternator and stuff must have jumped or some s*** on to the smooth part of the pulley. And the other belt for the AC just fell off. Can I drive it like this to local garage or is it too risky. Because I don't have tools at home to untorque the unbolt of the crankshaft pulley

[@GeorgeAusters]

You can drive without the drive belt but you’ll have no power steering and your battery will go flat before long

[@Aleksejsdt]

Just had the same issue yesterday. Yes, you can drive to the garage, but shift very carefully and don't rev the engine. The belt is not held properly and might jump off any moment since it is being driven by this smooth part. You will lose power steering and the alternator if the belt snaps.

[@Armanos99]

This is how these pulleys fail - the outer part falls off, you lose power steering, but the serpentine belt catches itself on the inner smooth metal part. Yes, you can drive. The belt will squeal, you will have no power steering, but other than that it is derivable.

[@Armanos99]

Hi, I am a little confused as to how these pulley locking tools actually work. As per the manual, you are supposed to lock the crankshaft by inserting a special tool in the teeth of the flywheel; this would cause a tremendous stress on the crankshaft and teeth but if it's in the manual, it "should" be safe.. But with the pulley locking tool, you are only preventing the pulley from turning, not the crankshaft itself. So why wouldn't it have a tendency to turn together with the bolt as you are releasing or tightening it? I don't get this. I am asking because my original pulley disintegrated, I released the bolt by locking the flywheel with a big blunt chisel in the teeth and put a new one back on with the old bolt, but now I want to redo it "properly" to spec with a virgin bolt.

[@GeorgeAusters]

I wouldn’t recommend locking the flywheel by holding the teeth.. you can end up snapping them off

[@Armanos99]

@@GeorgeAusters OK, I will try with the pulley locking tool, and check if there is rotation of the flywheel during tightening sequence.

[@engjds]

As the crankshaft has lots of inertial, cant you just use a impact wrench to torque upto a maximum output of 500Nm without locking it?

[@Armanos99]

No. The bolt is a torque to yield bolt (like a head bolt), and has to be tightened by a specific sequence. I am sure it will hold if tightened by an impact, though.

[@alinsecara2910]

I'm thinking to change the crankshaft pulley on my e60 because it has a rattling sound on idle and also when i accelerate a little bit . I was wondering if i let the car in first gear I'm not able to get the pulley out without using the special tool ?

[@engjds]

Good idea!, question is, can +400nM through the gear chain move the car while you are trying to torque it up?

[@evilkiller2007]

very helpful thank you sir

[@bryanshaw74]

Nice one, thats a good bit of fabrication on making that tool 👍 think you owe your dad a pint when the pubs reopen 😂

[@GeorgeAusters]

Absolutely!

[@darrellrobinson9468]

Great vid again pal

[@GeorgeAusters]

Thanks again mate!

[@danmcnelly5901]

M57 has 4 bolt setup Not one big single bolt How much play should there be in the rubber? As I can move mine slightly by hand Cheers

[@GeorgeAusters]

How many miles on it? They usually only last 100K miles or so

[@danmcnelly5901]

240000 miles!

[@Nutzername1273]

Mine held 139.000 and then disintegrated into two pieces throwing the belt off. N47D20c made in 2010 :)

[@grahamepigney8565]

@@GeorgeAusters the M57s in my two BMW have 170k and 173k miles, no sign of any play in the crank pulley. I checked recently as I had to change the water pump on both of them. The differences between the M47 and M57 can be significant as can the procedures for working on an M57 vs an M47.

[@hoppalo1103]

Cheapest pulley lasted me about 1 year, ~25 000 km.

[@GeorgeAusters]

Yep not worth it

[@mo31293]

Hi George. I got the Tool to lock the pulley and torqued it to 100nm. I struggled to secure the tool when turning the bolt 150deg, i only managed to 70deg turn before the socket holder i was using snapped. Now the Pulley holder slips off when trying to stretch the bolt any further, the teeth on the Crankshaft Pulled have been damaged by the securing tool. Shall i just leave it and call it job done or should i get a new Bolt and re-do the entire job. Do you think i should put on a fresh crankshaft pulley too ?

[@GeorgeAusters]

Are you using the same pulley I used in this video or a cheap chinese one?

[@mo31293]

@@GeorgeAusters got the Febi one from amazon.

[@stephenrose8188]

Just doing my son's 320d (2006) same problem with locking the engine for undoing (got the pucker tool and a 5ft breaker bar extension) tight! Jeeezus H Christ! Snapped a Facom 3/4 drive! And the lugs on the hub just chew up, the damn thing is aluminium, (yes it's a FebBilstein) why not steel? The locking tool is unscathed. Watch this space boys, going back tomorrow.........BTW, I think the N47 has four fixing bolts and the variant with the single bolt is a N47T2 engine?........

[@MK-gt1ez]

What if you just put car in gear? You will be able to remove the bolt ? Or torque it ?

[@GeorgeAusters]

Try it lol, just slips.. in gear will only hold it to about 40nm

[@MK-gt1ez]

@@GeorgeAusters normally it has to hold if you push the hand brake and put in gear, it slips only if the rear wheels are not touching the ground , I will do this job on weekend on my E46 so I'm trying to find a solution because I don't have the Locking tool

[@DaMRsansa]

Hi Georges, great video for my current project. Just a point who is not clear for me please. Do you first lock it with Nm key, and you add additionnal torque, right?

[@daliborpodobnik9010]

Nice job George 👏

[@GeorgeAusters]

Thanks 👍

[@thesalamander121]

on my car I got to the stage where the special tool was needed and didn't have one. so locked it of as well as I could and tightened it up to 60 then it slipped lost my place and punched the frame. tightened it a little more and did it again at that point my hand was bleeding and decided that was "to spec"

[@GeorgeAusters]

Hahahaha ffs! I think that was likely the case with the previous one too as that was definitely not tight enough!

[@Christian-go7ze]

Is it wrong if you move the pulley with no belt like half a turn or so ?

[@GeorgeAusters]

No, it just rotates the engine

[@dinitaalexandru3892]

good job man

[@e90-p1g]

Well done mate

[@GeorgeAusters]

Cheers mate

[@jamiesimpson6365]

We trying this at Min but we can't get that main bolt out got breaker bar and scaffold bar on it too is it opposite thread or owt it's a m57 engine manual

[@GeorgeAusters]

Nope it’s a standard thread, just very tight

[@sidyfall6182]

Bonjour référence marques arret d'huile polies denpaire Svp

[@git81mm]

People say scrap it I say keep brother.

[@GeorgeAusters]

It's definitely not getting scrapped lol

[@user-ro2nq7gp9l]

I know this car is an auto, but if it was a manual, would putting her in 6th, and putting on the handbrake work?

[@GeorgeAusters]

Not a chance at this torque

[@marcass100]

I needed a 1 inch gun with powerful diesel compressor and very strong 22mm socket to remove mine. What a nightmare.

[@GeorgeAusters]

The dewalt is a beast

[@pirasathstephen5349]

Good job Bro

[@GeorgeAusters]

Thank you man!

[@nemz7505]

Glad that came off easily mister, deffo not the right torque and if they're tight 3/4 impact with a little heat is the only reliable way. It'd laugh at 1/2 breaker bars ;) Decent locking tool, ya auld man did ya well

[@GeorgeAusters]

Yeah don't think it was torqued up properly but think this impact wrench could undo it as it has over 1000nm breakaway torque

[@endorfin158]

did the engine bushings survived that thithening ? :D

[@GeorgeAusters]

Yes just about

[@vp5]

Defo wasn't 350nm to 380, either that or was undone for the camera in advance

[@GeorgeAusters]

My guess is that it wasn't torqued up properly before as this pulley was not the original

[@magneticluke2047]

How did you make the tool iv got same problem

[@GeorgeAusters]

My dad machined it👍🏻

[@magneticluke2047]

Iv bought the tool mate iv got a e87 with the m47 engine had me and a friend try and its not moving at all broke a breaker bar in process

[@magneticluke2047]

Any tips or advice would be much appreciated

[@zainsaghir5624]

Hi mate I have the crank pulley on my 335d 4 bolts my mechanic is saying you don't need to lock the engine if he uses an impact to take it off and torque it back on? Is that correct when putting it back on?

[@GeorgeAusters]

You will need to to torque the bolts up or it’ll likely spin

[@zainsaghir5624]

@@GeorgeAusters can this be done without locking the engine pal

[@metabeta6993]

Is there any issue tightening it to specs in low temperatures Betw 0 and 10C? Im barely reaching 50degrees angle

[@GeorgeAusters]

You need a longer bar to lever with

[@metabeta6993]

@@GeorgeAusters its like you said I feel like something from those explosion memes is going to happen

[@metabeta6993]

@@GeorgeAusters one of the more nerve racking things ever I have just finished After 3 day torture Reached 149degrees and had enough when the special tool fell out bcoz the walls of the pulley and the tool are slanted not 90degrees angle There is NO WAY i would have reached the final stage without greasing the entire shit with graphite grease I had to use 2pipes 1.5meters long One for countering with special tool and to lever the tool in the pulley And other pipe for 22mm socket For comparison vw golf 4 from 2000 with 85kw for the pulley first stage 60Nm 2nd stage 60degrees With the golf having waaaay better acceleration and 25Nm more torque from engine I would know bcoz i own both Do not bolt in the pulley w/out greasing!!!

[@GeorgeAusters]

The bolt is not supposed to be greased

[@metabeta6993]

@@GeorgeAusters ocean going cargo ships main engine cylinders are bolted down with huge bolts Bolts are greased or oiled And then bolts are tightened with special hydraulic tools The tightening force is massive which is no surprise I know that from proffesional experience Effects of metal on metal friction is well known What is surprising the force for this engine when an engine with more torque output uses only 60Nm and finaly 60degrees

[@DanielleAusters]

Good video👍🏼

[@GeorgeAusters]

Thanks 👍

[@leslieldridz1731]

Autodoc gloves???

[@icanikolic]

Engine is making 300nm, all you have to do is put it in gear and tighten the bolt.

[@GeorgeAusters]

Lol try it then

[@rifathrnjicic2197]

What is the qualitiy of thoose pulley? Is the good for the price?

[@GeorgeAusters]

Very good

[@flippy9133]

I think it was wobly because they didnt torque it down properly when installing. Looked too easy to remove

[@GeorgeAusters]

Good chance yes

[@herobo123456]

M57 has 4 bolts not just one not the same procedure

[@GeorgeAusters]

I think the earlier ones just have 1

[@GeorgeAusters]

I think the earlier ones just have 1

[@theeroom]

Mine just went today😭, torn off

[@GeorgeAusters]

Very common issue

[@theeroom]

@@GeorgeAusters Hi George, so having a nightmare with this bolt. My local garage cant get the thing off, theyve tried heating up the bolt, blocking the fly wheel, using the crankpulley tool against the sub frame and using a breaker bar with no joy. The teeth have torn on the crank pulley also for the tool. Any tips or other methods you could suggest?

[@GeorgeAusters]

@@theeroom Do they not have a big impact wrench?

[@theeroom]

@@GeorgeAusters yeah sorry forgot to mention they tried a 1100N impact gun on it 😞. May cut the bolt off and drill into it?

[@GeorgeAusters]

Did it have full charge? The bolt should only be around 400nm

[@bmwdocta9046]

Ok guys as you can see, as you know dat dese common common problems. Ive just jad a company contact me to send me one of dese to ree view. As you guys know.

[@bmwdocbean1631]

Best thing is i told people that a certain company is sending me a digital dash free to reeeview for dem but someone asked the company on there channel and they said they dont have any intention to send anything 😂

[@ronalbreit5123]

Shows how bad he is with his new video i put that exact ugdo android screen in my car over a year ago and it literally takes 20mins max just plug and play. And hes saying it was really intense and took him 7 hours to fit. Theres loads of install videos on here showing how simple and quick it is even though he says its not being released until he says so 😂 and rhat his is the first video. I think he lies that much that he actually believes it

[@iamtheone3816]

The beginning of the video is hilarious looks like someone reboots him. just dont watch more than 20 seconds or your eyes start to bleed

[@bmwdocta9046]

No bro dese are straight from nasa mandems and der waiting for my reee view my friend befor goi g ahead and selling them to you guys dat av dese cars as you guys know

[@ronalbreit5123]

@@bmwdocta9046 Haha you talk better than he does to be fair

[@DavidSmith1307]

That's why it's called the Jesus bolt.

[@christianlkkakarlsen2293]

No loctite??

[@GeorgeAusters]

No need if torqued properly

[@lukeglovermusic4243]

Heads up, the crank shaft pulley bolt will never come loose as easy as you just witnessed. That bolt had definitely been slacked off prior to the video. Get your wife to hop in the drivers seat with her 8st body weight pressed against the brake pedal and put it in 4th gear and get your self a 6ft scaffold bar and 5 men to lever it off. I have had to.burn them with with oxy burner before now. Good luck, dont be fooled by this false video.

[@GeorgeAusters]

Wrong.. It wasn't loosened prior

[@Armanos99]

I released the original bolt (car is 17 years old) with a breaker bar and extension by locking the flywheel by the teeth. It was tough, but definitely doable with both hands pulling hard on the bar ;)

[@tobyg2313]

way too easy😂

[@lesafighter]

this is the reason i dont like diesel cars ,all the time some "special " things to be done to them ,plain petrol engine and no worries ;)

[@GeorgeAusters]

Hahaha

[@florinhumaciu2944]

😂😂😂😂😂😂