Rebuilding my 640D N57 engine bottom end

After finding metal shavings in the oil filter i decided to take engine out and replace the most likely cause which are the main bearings. In the end it turned out i needed a new crankshaft as the original had runout of 0.006mm.
Engine was reasembled with new headgasket, Main bearings, conrod bearing, crankshaft, oil pump, chains and tensioners, oil cooler seals, main seals, waterpump, thermostat and rocker cover gasket.

[@maciejcymerys191]

10K Kms update: Car running great, oil change 1k ago no glitter. Hopefully it lasts.

[@chrisberesford3879]

Hows it holding up? Hope it lasts 100k for you! I'm tempted to get a spare engine just because i dont trust the n57 bottom ends!

[@mickeypopa]

That's one hell of a job, well done! 👌 And that in-line 6 sound... man there's nothing better! 💪

[@washableaxe]

Amazing work, congratulations

[@--R--21--]

Not that long ago, BMW 3.0 diesel engines were known for reliability. Now it seems that 2.0 diesels are more reliable than 3.0.

[@afrost97]

Awesome! Well done!

[@suxp91]

Respect,Nice work

[@marinmiskovic9548]

Great work

[@qollinsqollo2293]

Great work. The chain guides were upadated , the ones you have on go brittle and break

[@clarkkent5188]

Sehr gute Arbeit😎👍

[@arazaliguliyev]

Good job

[@dekson7727]

dobra robota !

[@alexlex85]

nice one boy!

[@michaelb7468]

Hi Maciej, Admirable work. My Irish reg’d F06 has 143,000km. I will need to change the timing chains etc sometime. Do you work on other people’s cars?

[@GeorgeAusters]

Did you even check cylinder wear before honing them?

[@abdulkhadir8616]

What was the issue for it to be rebuilt? my 640d will need the same rebuild, but i dont know how bad t is inside the block as been knocking sounds are loud

[@lvpunisher888]

Rod bolts needs put new ones not put old ones back . They are stretching

[@n3pb3pzzzHvka]

Did you have to resurface the head or the block for this repair?

[@Killputin777]

before putting gaskets, lube them first!

[@LuckyLuck-dm8so]

Witam. Co to za preparat, którym spryskujesz cylindry podczas honowania? Dzięki z góry za odpowiedź .pozdrawiam. dobra robota.

[@Makerveli]

Those jacks looks a bit unsafe to be working underneath 😊

[@antosvs3571]

Bravo! 👍👍👍

[@piovo5222]

What was the total parts wise?

[@romanwielogorski929]

What's the cost of parts nd labour

[@TheOlegbykov]

Have you checked the geometry of the cylinder block? It is believed that the cylinder block also deforms under load. What was the mileage on your car before the repair? Thanks..

[@maciejcymerys191]

I have checked the block, i did not spin a bearing, just found metal shavings and did this preventetively. Car was at 260k kms, done 13k since so far so good

[@mateuszkosek529]

Nice job, but - I think You should also replace the oil cooler - some of this meal shavings can stay at this place. Also are You sure is your block is straight and all bearings are concentric? I hope yours engine works well, regards.

[@maciejcymerys191]

Thank you, i checked block is straight and measurments correct, i did fail to replace cooler but it will be done soon. So far it works. Thank you

[@Stw_]

​@@maciejcymerys191 change oil valves in filter housing, if not , engine have dry start at every morning, and damage crankshaft... first goes out 135 end bearings.

[@xxdiablogregxx]

Dał redę zmienić pompę oleju na samochodzie bez zrzucania skrzyni? Pozdro

[@zbigniewchojnacki870]

hi, can you tell me the brand of the crankshaft you bought?

[@maciejcymerys191]

Genuine bmw only, all others wont last

[@brahim55]

Well done ,from where did you buy the crankshaft ?

[@maciejcymerys191]

From BMW directly. Crankshaft had 0.006mm run out on main bearing journals

[@brahim55]

@@maciejcymerys191 is it cheap in your country ?

[@maciejcymerys191]

@@brahim55 crankshaft was 2500 euro

[@inspired_by_bimmer267]

Czesc.U mnie N57 w F11 2015 rok od nowosci.Dopiero co prawda 100k km nalotu ale predzej czy pozniej bede musial robic rozrzad+ pompa wody.Widze po blachach ze Eire.Czy rozrzad tez robisz i jaki koszt wymiany.Zamawiasz sam rozrzad dla klienta czy ja mam sobie sam zamowic +pompe wody?Pozdrawiam z co.Wexford

[@maciejcymerys191]

Czesc, niestety nie oferuje takich uslug to tylko przy wlasnym aucie to robilem. Mam za duzo na talerzu na ta chwile zeby w silniki sie bawic. Napisz do mnie na fb to ci polece kilka osob w irlandii

[@inspired_by_bimmer267]

@@maciejcymerys191 oo super wielkie dzieki,na FB jestes pod tym imieniem i nazwiskiem191?

[@maciejcymerys191]

@@inspired_by_bimmer267 mcoding poszukaj na fb

[@inspired_by_bimmer267]

@@maciejcymerys191 ok dzieki znalazlem ich juz.

[@maciejcymerys191]

@@inspired_by_bimmer267 to ja jestem mcoding tam napisz polece ci kogos

[@benjones1180]

What was the mileage on this ?

[@maciejcymerys191]

260k kms

[@MrCzeskimetal]

Cześć Maciek Gdzie kupiłeś wał i panewki i ile kosztowały?

[@maciejcymerys191]

Wszystko ORI z ASO. 2.5k euro za wal. Panewki jakies 30 cos euro za sztuke.

[@florinamicula7359]

Hi where are u in Ireland

[@liamsxa]

major issue with these engines is bottom end and timing chains

[@goddesseddog]

no new piston rings?

[@maciejcymerys191]

No just reused old ones

[@Killputin777]

never wait more that 5 seconds, because otherwise you going to burn the starter

[@ciucavasile2178]

Well done buddy how long take you to do the job?

[@maciejcymerys191]

3 weeks due to wait for parts

[@ciucavasile2178]

@@maciejcymerys191 any issues since the rebuild?

[@maciejcymerys191]

@@ciucavasile2178 5 oil changes in / 2000km and still seing glittery oil. Car runs perfect though. Will see

[@maciejcymerys191]

@@ciucavasile2178 most likely due to not changing oil cooler

[@ciucavasile2178]

@@maciejcymerys191 I had the same issue 535d f10 spun main bearing fix it very accurately plasticgage new bolts spun again in 5000km I bought a new engine and that fixed the issue 😂😂😂

[@blablablaqwd]

Every crank journal has its own tolerance lasered on the block. There are bearing sets with all the same dimensions, but as much as I know you need to lookup the numbers on the block to determine which actual bearing size you need.. i hope your engine will last forever, it was a lot of work! edit: this is what i mean, here it is all bearing size 2: kzbin.info/www/bejne/mpaQhpeqi7eCnas

[@maciejcymerys191]

Yes block and crankshaft both have their own numbers to tell which bearing size you need. Bearing sets are for conrod bearing i dont believe there are sets for main bearings as theyre all sold individually. All was done according to ASO instructions either way same as in the link you posted

[@maciejcymerys191]

Btw Im pretty sure anyone who had to do bearings on this engine has seen this video

[@rockfordwoods5432]

I think you have too many decimal places in your runout specification. Actually, .006mm is well within the manufacturer allowed tolerance.

[@maciejcymerys191]

Yes i ment 0.06mm, max acceptable runout is 0.02mm, ive mixed mm with inch decimals

[@Killputin777]

sealer applied incorrectly. you gonna end up with shit inside an engine which is sealer lefovers when squized

[@Killputin777]

dude, do you even understand what you doing? bolts needs to signed. litereally everything should be backed into it is place. i cant see this. it is physically hurts

[@maciejcymerys191]

Go do one. all internal bolts were brand new, you cannot reuse bolts as theyre stretched. youre ten steps behind

[@user-xx5kq3ti2u]

Shittybmw

[@ctopedja]

bare hands with no gloves and long women's hair on open block yikes.....

[@maciejcymerys191]

lol ever heard of an oil filter? and what have bare hands to do with anything.