How to Disassemble and Inspect a Turbocharger // Borg Warner K03

In this video, I show you how I separate a turbocharger. This is the stock JCW turbocharger from my 2009 Mini Cooper. It has over 100k km’s on it and it is indeed used. I will be splitting the turbocharger from the cartridge and showing you how to inspect it.
If you are interested in any of the items found in this video have a look at the affiliate links below. By purchasing items below, it helps my channel operate and brings more awesome content your ways, at NO ADDITIONAL COST TO YOU. Thank you all for your generous support!! 🖤
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If you’re looking to refurbish your turbocharger, you can purchase a replacement cartridge, which will in essence make it perform like a brand new turbo. This is a cost effective way to get around from buying a new turbocharger from a dealer, especially a genuine replacement part. The cheapest price I found for a Genuine JCW turbo is over $1500. If you’re looking to have this done of you have questions about this process, feel free to email me and I will be happy to give you more information. While you’re replacing the cartridge, you can install a better one to improve the characteristics of the turbo, while also reducing turbo lag.
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milanmastracci KZbin Channel / milanmastracci
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If you have any questions, feel free to send me an email at [e-mail]. Thanks for watching!! :)

[@zerodotone7765]

Been watching for years, still love your videos. I remember wanting a golf as my first car because of your old golf you gave to your brother. Still one of the best builds on youtube and youve taught me a lot over the years. Thank you Milan

[@milanmastracci]

I'm glad to hear it brother!! :) Its nice to hear feedback like this!!

[@whereisdave]

Im stoked i found your channel. i bought a 2011 MCS a few months back and have wanted to do a few upgrades ive watched all of your mini videos and you have a very clear, detailed, understandable way of communicating. good job. keep up the good work.

[@sergiosupra6852]

Each video you release motivates me to keep going with my project truck and makes me want to learn more!!!

[@chopjockey]

2:40 Air goes the other way around on the compressor from what you said... It goes in at the center hole and out at the long curved tube to the intercooler / inlet manifold...

[@bikerfry]

I caught that too.

[@wryanddry2266]

It's a centrifugal pump. Pulls fluid in at the shaft and throws it out tangential to the perimeter.

[@aldinoarendse3421]

High five man! The first video that I see that makes soooo much sense and seems so accurately detailed. Thanks.

[@audiogman5865]

I was expecting to see a complete disassembly and replacing the seal. This was a video on how to paint your turbo.

[@crazyDIYguy]

Yeah lol I don't think he has a clue probably breezed through a forum thread and pumped out a vague common sense video 😆

[@mariustuvanu3884]

Keep it up Milan i'm looking at you from Romania and i really like what are you doing !

[@milanmastracci]

Thanks Marius :) I appreciate it!!

[@fishrsa9046]

cool video, i got a KKK 56mm turbo from a workshop for free(they were gonna throw it out to scrap) and i was devastated when i noticed the shaft was broken and the turbines were turning separately - i'm really glad to know how easy it is to fix it at home

[@helpingsociety4447]

Thank you so much for your expertise, Sir !

[@rizjumeer]

Just found your channel, absolutely brilliant. Subscribed!!

[@domnicromero110]

Love the videos! You helped me get back into working on my project car again

[@milanmastracci]

Glad to hear it Dom :)

[@MinhNguyen-wk5fr]

I bought a Sonata Turbo last year, it is a fun car to drive around compare to the camry lol. I was afraid that the turbo might be expensive to fix after the warranty is over. I do repair/replace suspensions parts and maintain my own car but never touch a turbo or opening up an engine before. Your turbo and the engine tear down have been a great help! I hope your channel keeps on growing and you can do this full time. Cheers from Florida!

[@dkdzyn]

Really good clarification of all of the parts of a turbo! I'll need to rebuild mine sometime later this year and will send you an email about it because I seem to need a new exhaust turbine housing as the area where the wastegate actuator arm fits into it has worn, so I'm looking for solutions, including just chucking it for a replacement.

[@markfullerton3130]

this video was very helpful keep up the good work

[@tommyestridge9301]

Excellent job, very well explained.

[@milanmastracci]

Thanks Tommy 😊 I appreciate it

[@thetraindriver01]

Great upload Milan, thanks 👍👍👍

[@milanmastracci]

Thanks brother 👊👊👊

[@jovitoalos1368]

So informative for me sir. I like it. Thanks n Godbless

[@karlmaxweber]

One of the best videos I have ever seen on KZbin. Is there any video in your channel that explains how to remove a Turbocharger from a car?

[@goodnewsforallages777]

very helpful for understanding the tear down and rebuild the turbo charger.

[@milanmastracci]

I'm happy to hear that Indra :)

[@Deliriouskev]

you mixed up where the air enters the turbo. air from the intake goes into the turbo right into the compressor on front. the longer part is where it enters into the intercooler

[@Stavo1420]

TrboKev I notice that to.

[@silvermerlin6721]

Yep and I'm just learning. Totally backwards

[@james7301]

I like how most of the negative comments come from people who ain't doin' shit with providing content for people. Haters. Thanks, milanjastracci, for all the work you do, man. Keep it up!!!

[@johnbecker3159]

Great presentation...thanks!

[@johnbecker3159]

*thanks

[@ecoperformance7865]

What a great video.

[@michaelheredia3543]

Good video!

[@germanmorales6748]

Helpful video thanks 👍

[@milanmastracci]

No problem 👍

[@sebsshenanigans]

man, for a second i thought you were a fellow aussie :') Glad I found this channel anyway, you make some maad content!

[@veilsidezx]

Z1 motorsports box in the background right at the beginning. 👍

[@themedic4050]

Always check your turbo cartridge end play movement and axial movement. It should spin super free. Spin the fan with your finger quickly and it should spin at least 3 seconds.

[@stephensimpson6051]

Great vid👍🏎

[@milanmastracci]

Thanks Stephen 😁

[@johnmar1622]

awesome, thank you

[@ItsTheFry]

#MILANBOIZ nice work man your videos get more and more technical each time!!!

[@goncalojesus]

Amazing

[@richardmartin179]

Very well made video, thank you! I have an exhaust leak on the turbo and I suspect it's between the cartridge and the hot side. Is there a gasket that goes there, the parts that are held together by the "V" clap? I didn't see one in your video.

[@acms3340]

didn't catch you at the auto show man. hope you enjoyed it!

[@milanmastracci]

I want to make a plan with my family to go, because my Dad has been wanting to go, and same with Luca

[@vaioskaliakoudas6388]

The opposite thing: Turbine is the hot side compressor is the cold one

[@Miata822]

And the wastegate is on the hot side and the cold air inlet is in the middle and...

[@3n3ly7m9]

@@Miata822 yeah. he pointed to the inlet where the air goes in, and he said thats where the air comes out. I started laughing lmao

[@01sidiropoulos]

Hi there nice video ;-) i want to ask you how you align the cold side of the turbo?? You said there is a pin on the hot side to align but how you get the cold side ?? keep it up man ;-)

[@athensgreeceeurope]

Really easy brother 🙂

[@tomycohen7466]

Top man . The best mechanics Chanel

[@360rocketz]

3:09 The wastegate doesnt only open when you let off throttle, if anything its closed when you let off the throttle... the wastegate opens during full boost, to make sure the car doesnt continue building boost and blow the internals up. You realise the wastegate lets exhaust gasses out before it reaches the wheel, so that it reduces the flow to the wheel, making less boost build.

[@MichaelR200419]

A wastegate is vacuum operated and opens when you let off the throttle unless the amount of boost overcomes the “spring” or actuator in which case yes it can also open under boost

[@NatesToolbox]

@@MichaelR200419watergate’s are pressure (boost) activated to divert boost away from turbo and it closes under your specified psi setting 😊

[@craigfrench2599]

Do you have any recombinations for a cartridge brand. Very informative and week done video.

[@saintpurpp957]

Damn bro I learned a lot with your video my wastegate flap on my 2014 cla 45 amg is messed up I was trying to find a way to save money instead of buying a whole turbo $3-4k what I learn from thso video I just need to replace the hot side with the wastegate

[@doingwellll]

brilliant

[@gplusgplus2286]

You should also check your mounting surfaces are 100% level, as you would on an engine block. I've had a turbo that wouldnt stay mounted because of that. Of course check the exhaust manifold for level as well.

[@pushpinderlucky1605]

nice bro

[@harshvirkamoh5879]

Cool, can you please make a video on how to jack a car up

[@ForgedShaft]

How did you know where to locate the front compressor housing, because unlike the turbine housing it didn't have a dowel pin to locate it and could be put back on anyway. Unless you used the waste gate actuator to locate it somewhat close?

[@milanmastracci]

Using the wastegate is one way to do it, and that would work very well, but where the 4 bolts mount to the cold side, they left a mark in the steel. The exposed steel began to rust and make the steel look different. So you can bolt it back together like that, or you can even put a mark / scratch on the cartridge and cold side to properly align it.

[@esvuu]

You don't have to balance turbine wheel after dissasembly if you haven't bent any of fins e.t.c. and also if you are not changing the wheel… I have taken so many turbo's appart changed bearings e.t.c. the vibration will be ever so slight, that it will last you minimum of 5 years, when the bearing will be worn out of vibrations.

[@sylvester6836]

Get some turbo blankets on it for better heat insulation

[@milanmastracci]

Oh the heating and cooling will definitely need to be areas that I will need to address when putting everything back together

[@oluolu5759]

Already subscribed. Very detailed. Pls Volvo S40. 2001

[@carloshernandez2216]

Is it normal to see oil in the cold side going to the air filter? My car is a 2012 genesis coupe 2.0

[@iCallumPricey]

when your mini has a a supercharger but you watch all the uploads anyways

[@thomastrotta7859]

Callum Pricey lol, same!

[@albertomichaus8401]

when are you going to work on the 240?

[@juselyng4685]

What is your opinion of these eBay “high quality” Chinese CHRAs? I’m overhauling my Subaru VF52, but original CHRAs can be 3x as much.. so I was thinking of a getting a rebuild kit instead. Biggest problem I’m having is separating hot side turbine housing..

[@jp2funny]

My turbine wheel heat shield is touching the wheel and making a sound. Can I tack weld a little part of it so it doesn’t touch it anymore?

[@AverageBosnian]

I want that in depth video about the turbo.

[@johnbecker3159]

Please explain how using black paint increases turbo performance...thx.jb

[@apektaiga3242]

mann.. i tot this video about open up that turbocharger even further.

[@boohanlon3305]

Where did you get your CHRA from?

[@John_the_baptized]

Not sure you want to apply any heat stuff to the exhaust side of anything that’s cast iron. I know with exhaust manifolds they will crack when wrapped.

[@TobyRussell]

Where can you buy just the hot side? I think my wastegate is going out.

[@ivanmorales1407]

Nice video ! how to paint a turbo 😉

[@giorgioika]

What about the turbo that you bought few months ago?

[@milanmastracci]

That one will be going on my Mini. This is the one that is coming off :)

[@johnbecker3159]

Agree with you....just buy new cartridge if any issues.

[@lightningsmokerXx]

Milan What product do you use for stripping/removing sealant/ wax off the paint?

[@milanmastracci]

My favourite is Palmolive un-scented dish soap works very well (amzn.to/2C7kClE). That works very well, along with Alcohols, like a rubbing alcohol or Wax and Grease Remover like this (amzn.to/2BEuqT5).

[@lightningsmokerXx]

does the soap dry out plastics or rubbers?

[@milanmastracci]

From what I've seen, no.

[@srdang6136]

Painting the hot side was quite a good decision. For the cold side, chemistry speaking,you are not correct, Aluminum actually oxidizes so quickly in very thin layer in matter of tenths of second, so painting here is just aesthetics.

[@ExileZO]

I just ordered some light aluminum VHT is that what color that looks like?

[@milanmastracci]

So what I used for the cold side is a similar silver paint that is only available at the local hardware store of mine. I linked the VHT silver which would look quite similar. If you are looking for a bare aluminum look that will not oxidize, you can sand the turbo / sandblast it, and then spray clear coat over top.

[@ExileZO]

That’s fine! I just ordered some VHT, but it is just for hiflow cats I got.

[@MichaelR200419]

Hot side is called the turbine side, Cold side is the compressor side. Not sure if anyone else caught that

[@eatmy888]

could the cartridge be replaced without disconnecting the hot side from the manifold?

[@milanmastracci]

Yes it can

[@jaykent6645]

What about new oil seals?

[@Stavo1420]

I don't know about the ceramic coat of the turbo but heat is the enemy of all turbos so things like turbo jackets and ceramic coating don't really sit well with me even if they do keep the engine bay temp down because turbo cost alot of money.

[@milanmastracci]

That is why the turbocharger is both oil and coolant fed. As long as you don't get the turbo red hot, and then park it, you're good. Letting a red hot turbo heat up the the oil in the cartridge and letting it sit there is what kills the turbo. As long as you let the turbo cool for a minute or two before turning off the car, you will be okay.

[@Stavo1420]

milanmastracci Yeah but I'am also use to working with much bigger turbos like aftermarket RB25 turbos and 1JZ and 2JZ turbos which most of the time don't have coolant line just oil which barely does much for the turbos but keeps them lubricated, also they definitely get red hot.

[@392dan4]

👍👍

[@saintpurpp957]

What’s the hot side called?

[@xiaxia686]

Why can’t you have a super long shaft to separate the hot from the cold?

[@anshumanvajpeyi7094]

Does changing cartridge helps i have a skoda yeti 2.0 140 ho, its turbine is showing a play, what should be done

[@milanmastracci]

In your situation, I would replace the cartridge with a new one and be on your ways.

[@anshumanvajpeyi7094]

thanks, can you please guide us which cartridge to buy?

[@davidrambarranable]

Hey dude. Nicely done. How much you sell your for?

[@milanmastracci]

If you're looking for one just like this or even better than this, send me an email at [e-mail]

[@michaelheredia3543]

I think brother that the first step could be to do a sign to don't lose the position of the Turbocharger.

[@TERRORoftheLORD]

I took mine apart on the car with a few light taps with a rubber mallet... But mine was pre oiled from the inside so...

[@justin6604]

are you putting a bigger turbo for the mini tho?

[@milanmastracci]

kzbin.info/www/bejne/mXLIc4SYn8efqck

[@justin6604]

milanmastracci 😂😂 kk

[@helihoot]

It's not the exhaust flow that spins the turbo.... it's the heat expansion as it escapes the cylinder.

[@16fuxo]

2:56 are you sure ? :-D :-D

[@milanmastracci]

Oh shoot you're right lol I guess I overlooked that part ahah Its the other way around :)

[@steveprentice4513]

Good advice. However I don't see how you improved the performance.

[@henrydtstoner]

First Comment! Good video though!

[@milanmastracci]

Thanks Henry :)

[@MFullaStyle]

So what's next Forge 007 BOV?

[@milanmastracci]

Nope :) I got something a bit better than a Forge.. You'll see

[@GWAYGWAY1]

In the centre and spun out the side port that is hoe a centrifugal compressor works

[@Henrytimmins]

Where did you get that super turbo charger from another video? You had your girlfriend in the car. Im in Mississauga. You are in Toronto right?

[@milanmastracci]

Hey Henry! I wouldn't suggest getting that turbocharger as it failed on me. What I Would suggest as an upgraded turbo is this: bit.ly/2BN91WD

[@chasebecker2679]

Every time he said penetrating fluid I cringed but nice vid man

[@jferguson907]

At 3:00 he's wrong, it's backwards on cold side. The Centric pipe sucks air inwards then impellor throws it radially and the eccentric pipe is t he compressors discharge.

[@alexlaverick6111]

Those 10mm nuts are actually 6mm nuts. All the bolts are 6mm too

[@dazbagsmason]

Great videos but the amount of time and money it looks like you are spending wouldn't be a good idea to replace the turbo cartridge since it would have 130000km onit like you said. Seems like this will be a weak point in your engine now, just saying

[@borninwashingmachine4582]

it takes ages to change a turbo this way. The most of explain is about painting turbo case.

[@chris77777777ify]

More performance from painting it.....lol What next racing strips !!!

[@anilramoutar1929]

Yes he mix it up .but i know

[@iGotToastz]

HALLOOO SWEETIE

[@milanmastracci]

HALLLO HOW YOU?

[@NoSteveJob]

If its not broken , why fix it

[@jardamuth]

5:45 Good job messing up that inlet flange with hammer blows on the edge. 6:10 10 millimeters? you mean M6 X 1 maybe? 6:40 Why would it run metal on metal when it's actually with cold oil that you get maximum pressure? Hammering the car when cold is hard on the engine but the turbo doesn't care that much.

[@kfossa344]

He had a brass hammer sitting there too. Lol.

[@anilramoutar1929]

I fix turbo .i need addvice

[@egbertgarcia6610]

Twin scroll really?

[@markjennings2315]

DO NOT BEND THE IMPELLER BLADES

[@priestleyharker4046]

Don't hit it with a steel hammer you maniac, thats how you crack the exhaust housing side. Use a rubber mallet

[@kfossa344]

You changed virtually nothing. Also, you had a perfectly good brass hammer sitting right there. Why didn’t you use it to knock the turbine housing off? Probably coulda knocked it off in one or two good hits.