Catastrophic Engine Damage - Alpina B7 - Project Chicago: Part 8

In this video, we diagnose the horrible knocking sound we heard on the test drive and what caused it. It's not good.
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[@LegitStreetCars]

I'm physically hurting over here for you. I'm so sorry dude.

[@M539Restorations]

Thanks, Alex! She'll be fixed and on the road by the time you come to visit!

[@mathewcarter1767]

Can't wait to see you guys working together.

[@Azeazel.]

Can both of y’all please do a collab on merch! It’d be epic!!

[@sasa.radovanovic77]

Both Alex and Sreten are my favorite youtubers

[@zo1-]

Seems like the B7 and Cl65 are behaving in similar ways

[@Azodiac]

Can we just appreciate that he uploaded a Instagram post 4 days ago where the engine was removed and now there's a high quality video of it ALREADY??? You're insane bud!

[@M539Restorations]

Thank you!

[@MILEVOJVODA]

@@M539Restorations prilikom obrade cilindara treba metalna ploca koja se steze umesto glave,jer cilindri se deformisu prilikom stezanja .Ne bas toliko ali ipak malo.Cini mi se da je taj "majstor" zbrzao posao prilikom obrade ,plus mu je masina koja vrsi obradu neispravna cim toliki oval pravi.I jos nije ni izmerio kada je zavrsio posao jer bi video odstupanja kao i vi.Izbegavati ga ubuduce.

[@divljacina1]

@@MILEVOJVODA ako nisi ispratio....klip nije imao de da se siri....a cilindri celika nisu se sirili sa klipovima i tu je nastao problem....dal je merio kad je odradio...il nije....to je sad pitanje....tolerancija mora da postoji!

[@MILEVOJVODA]

@@divljacina1 jesam ispratio,nije dobre tolerancije izbušio,da je merio na kraju video bi da su mu ovalni cilindri sto se ne sme desiti na obradi

[@divljacina1]

@@MILEVOJVODA jes....a dal su bas ovalni cilindi dosli sa reparacije....il su se pokrivili dok su se krsili u radu....ima na 17:35 cini mi se ako nisi primetio razlika u boji na radilici...tkd su cilindri verovatno bili izlozeni jacom temperaturom....drugo tolerancija vazi za ceo motor a ovde stradalo 2 il 3 cilindra kolko ja vide...nisam video dal je premerio klipane u nekim od proslih klipova...mozda si klipani zasrali stvar...

[@arabaciadamlar]

This must be the most frustrating disassembly of all times, but spirit is up which is nice. Hope it plays out well.

[@arabaciadamlar]

The mighty intercooler though :D

[@devirkesici7096]

Noyan chief doesn't miss any detail like usual. :D

[@earnestbunbury2103]

He gets paid either way, in or out. All good.

[@arthica1337leet]

He can do everything! I believe! :D

[@walkingthedistance]

@T H While you're not wrong, remember this whole project build is supposed to keep the cost down. Therefore, not much new parts being used and mostly refurbished. Otherwise he could've bought everything new down to the bolts and kinda no point for doing this whole video.

[@thakrak]

You don't know why you included drunk guy and yet it makes so much sense to help us understand the everyday life of a DIY guy in his shed...Thanks for that! :)

[@tompackage]

I’ve been building large Audi engines of various types & VW engines also for 24 years & am factory trained/certified with both marques at main dealer level. I’ve observed your working practices & I can tell you that there are master technicians out there that aren’t as polished as you, your ability to remain calm in the face of adversity speaks volumes. You should be incredibly proud of how far you’ve come, stuff like this happens especially when relying on outside vendors. It’s very disheartening going over your own work knowing that it isn’t your fault, I’ve been there ! Keep your chin up & don’t doubt yourself… Tom, VW/Audi Technician 🏴󠁧󠁢󠁥󠁮󠁧󠁿.

[@niewissen9912]

Well said

[@MRMV483]

What is an audi tech doing on a BMW channel 😂😉

[@M539Restorations]

Thanks a lot, Tom! Appreciate it.

[@yourealwaysright6770]

Well said,the work is thorough and can’t be faulted,it’s unfortunate now you need to be learn how to check a machinists work over but that’s the edge it takes to prevent another failure. Great work as always ,and what about Dominic,did you call him or what?? 😂

[@bigsmoke6189]

Could that block be resleeved in your expert opinion ,or rebored to save it ?

[@mailforjon1]

my favorite line -> "it's not your fault, but it's your problem" that was really good commentary on the cylinder clearances for dissimilar metals

[@lactera9247]

You have to put back the nail in the oil pan. Its just some weird kind of counterweight which will counter vibrations which otherwise will cause the zylinders to wear heavily.

[@blakeslide6919]

lmfao

[@uvuvwevwevweossaswithglasses]

Lmao😂😂

[@bruettingmarcus]

The so called COUNTER NAIL 😅

[@andyandy2743]

You genius

[@JamiesGarage1]

Dude, so sorry this happened. I admire your dedication to keep going. 💪

[@pptime6655]

kzbin.info/www/bejne/Y2Guo2RueMqisNE

[@boontjes5528]

Technically its an Alpina, so still a clean record: no BMW has ever left you stranded… 😜

[@M539Restorations]

Lol, very good point!

[@JJB34T5]

@@EliColner I mean he already bit the bullet with an E60 M5 so, why not the E90 platform too?

[@saschakaltwasser1002]

@@EliColner in He is not buy a e90 with 4 cylinder engine its not that worse...

[@busybutstill5617]

@@saschakaltwasser1002 let's be honest. A bmw with 4 cylinders is like a bicycle with no wheels.

[@YusssoM]

@@JJB34T5 a rough E60 M5 that is, man is a legend really

[@McMaster1500]

Sreten, you teach us all to never give up even when things look bleak. This is a labor of love, and you show it. Keep up the good work, this B7 will soon run again!

[@DeadEndRestorations]

Like you said, anything can be fixed. Passion and dedication can fix anything, keep it up!

[@duncandonovan5270]

@@DeadEndRestorations don't forget the bundle of cash it takes to do it right

[@TheRaidoRune]

Bad decision, don't buy used BMW engine (no bueno) 😉

[@knobstar67]

This is a great point: I would have walked away LONG ago! Such impressive tenacity 🙌 Also, I love your game plan 😊

[@eleonik76]

I had hit my head to the wall, almost literally for trying to understand why would anyone with such skills and intelligence start a project with E65. Sorry,but it's beyond suicide. Everything in that car is flawed by default. It's not beautiful either. I would've gone with E38 B12 ( if Alpina is the one to go) and enjoy timeless, beautiful and magnificent solidly built car.

[@GradualReportSerbia]

Gotta join patreon, keep this mad man going. Who's with me

[@nickcheras]

Like we say in Greece “paint it blue and throw it in the sea” Love your show - it scratches an itch in a strange part of my brain. Keep doing what you’re doing brotha

[@mihalis1010]

Like living vicariously through him. He does what I dream of being able to do; buying cool older unloved cars and bringing them back to life. I have an E90 which needs some work here and there, but as it turns out, cheap parts add up REAL quick.

[@paulkasana1908]

Lovely work! stumbled on your videos and got hooked!I am restoring a 1988 W124 myself.Its not rocket science if you read manual,watch videos like yours and have a leaning towards tools and machines.Great work! Greetings from Nairobi!

[@watm80]

The engine strip down in 5 hrs was impressive. You could work for Alpina any day.

[@drivingpsyche]

some are doing game speed runs... Sreten is speedrunning Alpina disassambly.

[@Specproof]

@@drivingpsyche Haha! Brilliant analogy!

[@steakiefrags1866]

@@drivingpsyche if the engine runs, but dies within 100km of driving its an any% run

[@drivingpsyche]

@@steakiefrags1866 i was thinking about "engine disassembly speedrun"... unless the engine grenades itself - then it blue screen of death type of deal

[@steakiefrags1866]

@@drivingpsyche yea for some reason i was thinking about "blowing up an engine fron scratch any%" haha

[@aeroearth]

Some thoughts. The block is cast aluminium (not forged I assume) and the sleeves should be austenitic cast iron which has a higher coefficient of expansion that other types of cast iron. The bores could well have been in specification after pressing in the sleeves, boring and honing to size but went out of round and cylindricity after thermal cycling. If the sleeves have dropped in the bores that tells me that they do not have a locating step at the top which I would always do so they can neither move up nor down due to piston drag. When I rebore engines I choose to lap to size not hone though honing is the industry practice. These engines I rebore are tiny compared to automotive engines. The reason I choose to lap not hone to size is that honing will not necessarily remove ovality in the bore, but lapping will and does. Ringed engines must have truly cylindrical bores and no taper permitted. Bore ovality leads to gas leaks and burning of piston and ring surfaces and bore taper to cyclic expansion and contraction of the rings with each stroke leading to piston ring gap wear and ring fatigue failure. The dial indicator device your Machinist used is one way of measuring bores but does rely on both Operator skill and repeatability of the dial indicator. A more accurate and consistent method is to use a tri lobed bore micrometer made by Mitutoyo as their Intrimik series and also the Swiss. The tri lobed micrometer I use measures to 0.0001", necessary for my work. Tri lobed micrometers will not detect lobing of the bore caused by the initial boring or grinding operation and to detect that needs a temperature controlled laboratory with a Coordinate Measuring Machine costing hundreds of thousands of dollars. Congratulations on your dedication to meticulous assembly and absolute persistence in determining the cause of the Alpina's B7's engine failure.

[@abarratt8869]

Just been reading up on Austenitic iron - interesting stuff! Jay Leno and crew had a nightmare time trying to replace a cast iron piston with an aluminium one in one of his ancient motorbikes. In the end it was trial and error, going down in size until they found a size that worked. I'm a bit worried that Sreten might end up having to do the same with this one, especially if sleeves are going to change shape due to thermal cycling. I second your point about a locating step. Seems to be important!

[@danstewart8218]

Hey Jon thanks for that...thats super helpful...tho Car Service...the guy with the Dial gauge...yes it should have been on a stand ...However, that cursory inspection of the block showed Sreten exactly what he needed to know....It wasn't Him, those measurements were way way off...and that wasn't due to mishandling of the Dial gauge. that was the bores being out.

[@jcoul1sc]

Is there a way of thermal cycling the engine without starting and running the engine? Just had engine problem local mechanic, an independent BMW technician, could not get hold of the repair manual for mazda. Autodata did not have information. Car goes to main dealer fixed same day, known fault with copper washers used in the fuel injectors. i remember the Alpina tech laughed when he said he was doing the engine rebuilt himself.

[@aeroearth]

@@danstewart8218 I'd say watching the Machinist using the single axis bore gauge that he knew exactly how to use it. He also knew what typical piston clearance should be in the bores. It also may well be that a BMW super charged V8 engine should have more piston clearance than a normally aspirated one as well. A greater mass of inlet charge due to supercharging must bring more heat. Wonder if the water pump is a greater flow on the B7? Wonder if the radiator is of greater capacity?

[@aeroearth]

@@jcoul1sc Yes, a Heat Treatment facility would be able to place the sleeved block in an oven and thermal cycle it. When sleeves are pressed into engine blocks a hoop tension is created in each aluminium bore and the sleeve goes into compressive hoop stress. As cast iron and aluminium alloy have different coefficients of thermal expansion the stress values will rise and fall with each thermal cycle. The engine Design Engineer's and Engine Reconditioner's expectation would be that there would be no permanent movement in the bores geometry with in-service thermal cycling. I would expect BMW Engineers to verify that during the engine's design and development cycle.

[@aliabdallah102]

"It is possible to commit no mistakes and still lose. That is not a weakness; that is life." Captain Jean-Luc Picard

[@andrewglover9769]

Great quote! :-)

[@houseofno]

Episode was "Peak Performance" if I remember correctly.

[@ReinierMayer]

The egg shape is caused by the internal structure of the piston. Inside the piston is the support structure for the pistonpen. This is the item that is in the direction of the widest form of the eggshaped cylinder. The overheating pistonpen expands in his lateral direction and gives pressure on the cylinder wall. That’s why the cylinders have a wider shape there. The 90 degrees sides endured no pressure from these pens and because they have no structural support in that direction, they don’t scratch that side of the cylinder wall. The expanding pistons expand in the direction of where they are strongest and contain therefore the most thermal energy. The fluctuation of the roundness at extreme temperatures normally is compensated by the width of the free floating piston rings. An ideal piston has to stay a perfect circle all the way from warming up to extreme temperatures. If not enough clearance is taken in account with the opposing cylinder wall of a different metal (having a different expansion rate under temperature), the most resistance is in the direction of the piston pens and there you see the wear and the egg shape of the wall

[@nicholaschriss1706]

It was hilarious adding the drunk intruder in the video but overall heartbreaking, I hope you get a result with the engine that's coming from Poland.

[@dan_6915]

Usually a car from a breaker's yard didnt end up there because it was good. But lets hope at least the block will not be worn out.

[@tonyus8197]

​@@dan_6915 it can be an accident damaged (totaled) car that still has a good block.

[@dan_6915]

@@tonyus8197 Depends of the accident. These engines are like a swiss watch. If you deprived them of oil for one minute or 2, it's a bye bye block, just as it happened here. Usually using second hand parts, are the worst choice u can make. Ive been there. Ill buy new to spare the time and stress. To repair something "for fun", is actually not fun at all. Just tons of work and stress for what ? You fix something, something else gives in. And u get bored of it anyway, after a while.. I had like 7 cars till now. Ive always said: ill keep this one for loong time.. well, i havent.. :( Current one works perfect, except it has idle issues. Nobody knows what it is. Could be an electric circuit problem. Imagine having to change all of it. Pas. So it's gonna go soon. Even if i like it alot.

[@SalvaBarbus]

I don't know how to say this without sounding extremely sappy, but, don't beat yourself over this any longer. I understand the pure frustration and rage you must have felt, but this is beginning to take a toll on you. I mean, you sounded utterly broken at the beginning of the video! And it bears repeating: it was NOT. YOUR. FAULT. Take pride in that. You rebuilt a goddamn engine without prior experience, and it went bad only because of an incredibly bad chain of events outside your control. Hell, maybe if you didn't change the thermostat it would've blown up even sooner. Take a rest if you need it, get more than one stiff drink if you need it. Just don't go up barging into other people's garages! (wtf was that, seriously).

[@alexbrown1995]

Hear hear!!

[@shiznoes]

Thank you so much for including the drunk. Such a candid moment and I love seeing how you handle those things lol.

[@QuickQuips]

Seriously I was debating what was a bigger pain, the engine or the drunk.

[@energymc22]

Sicilian mafia 😜

[@cigarsgunsanddiesel8032]

@@QuickQuips 🤔🤔 definitely that engine!

[@bgereon]

Clearly we are going to need to have sreten invite “Dominick” on the channel to explain what goes on behind the closed doors of unit #1.

[@cocosloan3748]

@@bgereon He too don't wanna get involved ! 🤣

[@badrinair]

After such a mamoth job I would have cried if the engine had failed like that, but you remain unfazed and plough ahead. That is your strength I believe. well done .

[@KhalidSalahie]

I love this guy, even after this major problem with the engine he still wants to complete the project. Bravo ! Looking forward to the next episode.

[@pptime6655]

kzbin.info/www/bejne/Y2Guo2RueMqisNE

[@andy-james-]

If the engine wasn't enough, the drunk makes his entrance! My hat is off to you for keeping cool.

[@died4us590]

At 51, and having worked on so many engine's, you were meticulous in every area of the build. What I love about you, is how honest you are, and how happy you are wrenching to give life to these old car's, otherwise they would have ended up in a metal foundry boiling for sure. I feel bad that this happened, and that you had the accident with the other car. One good thing is that you weren't hurt, because that would have been the worst. I was thinking that at least the catastrophe didn't happen when you were driving fast, might have caused much more damage. I know you will drive this Alpina again, and it will be perfect, as long as the engine from Poland is good, but i would not trust that guy who did the work on the block another chance with that kind of block for sure. God bless from a girl in the US.

[@M539Restorations]

Thank you for the kind words!

[@Baqar146]

Girls like these are keeper 👌🏼 kind and car friendly 😂

[@died4us590]

@Danny, yes i am 51, but i get carded when i buy wine lol. The bad part is that i have ms, and was injured at work, which required many surgeries that make me feel like i am 91. I still work on car's, but not very fast lol.

[@died4us590]

@M35 Restorations, just pointing out what i and everyone else see's. You remind me of my grandpa, he had the same sense of humor as you, and taught me as a kid to fix thing's because he didn't trust people after being scammed, and had gotten. to old to do everything. I taught myself how to fix car's, but it really comes down to either you have confidence to look at something, and can see how it comes apart and goes back together, or you don't. Sreten, you have one of the best you tube channel's, and put out great video's that show your talent, and ability to teach. Thank you for being you, and i look forward to seeing the Alpina finish the race.

[@chadbaptiste4227]

Sreten, my heart weeps, but your perseverance is beyond admirable, and your community thanks you for continuing to produce content in spite of such incredible setbacks! As always we root for your continuing success!!

[@B7stuff]

Sreten - I truly admire your perseverance and endurance. It was such an unfortunate setback and painful to watch, and I can only imagine how you felt.... On the flip side you can now assemble the Alpina engine in your sleep. You are an inspiration!

[@poplaurentiu4148]

I do like his channel and determination: " he will build it again and he will push it hard on the autobahn if it blows up at least it will go in full use " best quote..

[@lai5584]

"if it blows up, at least it blows up spectacularly" well, i really hope it wouldn't 🤣 looking forward to see this alpina b7 back to its glory again.

[@lerzuuuuu]

Hey Sreten, it’s really sad to see, that the car broke down… but it‘s impressive, that you don’t give up, and repair it again. Your videos are very interesting, and also satisfying to watch. Keep it up man! Greets from Austria, Mito

[@domkraggp9944]

Learnt a thing or two myself from watching this episode, very informative. That Alpina is a marvellous looking thing I must say, defiantly worth one more throw of the dice to rescue. Thanks for the amazing content, we car guys really really appreciate the hard work you put into this channel.

[@joshuamartin7735]

the fact that you can remain so calm tearing apart that engine after all the time and money you put into getting it running again is impressive.

[@durdom3308]

This was a first time when I see how someone disassembles a cleanest engine ever... Sad story, but educatable. Never trust anyone and double check everything even if you trust 3rd party, especially when things comes to engineering! Thumbs up, never give up! Big thanks to this priceless video (study) materials! Bless you and happy Easter!

[@Danydaniello]

Very sad episode but hopefully the engine from Poland will be in good condition as described. Drunk guy was so random, that Dominic guy owes you a crate of good German beer for having to deal with that.

[@TheRaidoRune]

I doubt. It may sound new to you but the BMW drivers are idiots and the fact that that engine is selling used tells a lot 😉

[@joshdoeseverything4575]

I love how Sretan said "I dont speak german" lmao

[@fraserthomson5766]

I know you've has some practice but that disassembly was breathtakingly fast. Wow!!

[@mickehoe]

That was torture just watching you stripping the engine again. Can’t imagine how you were feeling.

[@WARXion]

What's is the chance that Sammit and him has the same issues on the same week, it's astounding.

[@muniman9527]

Good man Mick!!

[@jasonlouis5498]

@@WARXion I was just thinking this about sammit lol

[@Latham74]

You can learn alot about someone when they're faced with a huge setback. I salute you for your attitude and ability to get back on the horse.

[@muki_hi]

this is such a sad episode :( I hope the engine from poland will be good! Keep up the amazing work Sreten, we are always there to support or help if we can!

[@knightonwarbeck1969]

It is the right decision to acquire the used engine. The original work on the block was bogus. The guy appears to be incompetent. Even if he takes responsibility and "makes the correction", the pedigree is set. I have a saying that proves true time and time again; "Trouble in the beginning, trouble along the way, trouble in the end". We can also look at it from the perspective that the engine is "jinxed". See above saying. By swapping to the "new" used engine, you avoid the jinxed-ness of the original engine. I once bought a crashed motorcycle and rebuilt it only to ride into a car door head first at 60 kph. She "didn't see me". I am lucky to be alive. Jinxed in the beginning, jinxed along the way, jinxed in the end". At some point... luck runs out. Love the channel Sreten. Great content. Keep up the good work my Friend.

[@ShainAndrews]

12:40 Another good tip. Lubricate any tool that has those steel wheels with chain lubricant. Use the good stuff you find in sport bike shops. It flows in where you need it then sets up to a waxy grease state. You will be amazed how much more control and reduced effort it takes to roll around the hoist, engine stand, floor jacks. It is also phenomenal on door hinges, and latch mechanisms. It has to be proper chain lubricant though.

[@royevans4581]

Thanks for that tip Shain. Will apply that to my trolley jack. It's a pain in the arse to move about.

[@ShainAndrews]

@@royevans4581 Once you do it, and see how it performs you will kick yourself for not thinking of it sooner. It seriously makes that gear a joy to work with. Loaded or unloaded... just so much nicer. If you happen to be in the states I use Lucas Chain lube in the aerosol can. O'Reilly's typically has it in stock.

[@davidgodfrey5055]

Do not reuse the oil cooler. Regardless of your efforts you will never get it clean and it WILL introduce trash into your clean motor. Been there, tried that, cost me a motor.

[@M539Restorations]

I kinda have to, it's brand spanking new, over 700 euro worth of parts. Besides, none of the crap got in there because oil first goes through the filter and then the cooler. I already let it completely drain and it's clean, no shavings or anything. Had it actually spun a bearing, we'd have a lot more junk in the oil, but here filter caught most of it. Of course, anything that's going to be reused will be thoroughly cleaned.

[@ValladolidArde]

@@M539Restorations get one of these electric pumps to drain oil from lidl, make a circuit to flush diesel through it (yup they are safe to pump diesel), let it run for a few hours, should clean her fine. or at some ship ports or industrial estates you can find radiator core cleansing services for heavy machinery

[@spencermaiers8322]

I don't know how difficult it is to remove shavings from an oil cooler, isn't it just a pipe with radiator fins to disappate the heat? I'd be less concerned about blowing out a pipe. I don't think they design the cooler to be some obscure bunch of fissures and crevices. It looks like a radiator on the outside, complex, but inside? Probably a pipe. No?

[@munter10]

My sincere condolences . . . I've spent 35 years of my life working in garages on cars and I feel your pain, it is probably one of the most frustrating agonizing state of mind to be in, extremely stressful and we know how stress affects the human body . . not good. Keep up the good work, I'm enjoying your display of resilience and positive attitude in the face of adverse circumstances! Honestly, if I had my life over again, I would NEVER go down the road as a automotive technician. There is never enough training and the technology in cars is accelerating faster than we can keep up with.

[@dan_6915]

Same frustration is in every domain. At least in car industry itll be electric soon (i hope) Fewer parts. These ice, are a nightmare in my opinion. You fix something, something else gives in... I think their time is up.

[@TNX255]

Cars have developed in 35 years a lot and the technology has become more complicated and advanced, but trust me, it's nowhere near as much as in the IT field. I worked in IT for some 15 years, and now that I've started to work on vehicles, they feel a lot simpler :D

[@revinot]

@@TNX255 i feel this, I.T changes frequently

[@ValladolidArde]

@@dan_6915 total rubbish, IC engines are a thing of beauty, been doing racing engines for half my life now, andI still love them. Its always the human factor that messes things up, you just gotta double check everything. Electric cars are utter crap by comparison. I Always check subcontracted jobs before installing, too many inexperienced idiots on the loose these days

[@dan_6915]

@@ValladolidArde Your opinion doesnt matter in the grand scheme. You make engines that last one day! lol I dont care about that. I'm talkin about everyday life, and engines that has to last 10 years of use, if you pay 40 grand for a new car. Electric are better because has fewer parts. Also in term of performance, i dont think it's even necessary to talk about. Ive rented one of those electric nissan. It takes off like a fckn rocket. My stomach didnt liked it at all. Imagine one of those 1000 hp tesla. And the noise.. i fckn hate engine noise, with all my soul! Driving for 5 hours or 8.. I got fckn tinitus because of cursed engine noise! It's time to scrap them all.

[@CaptDonkey1]

I knew it wasn't anything you did Sreten. Of course we want everything to be perfect the first time, but with all this new knowledge and practice, you are now capable of repairing anything. Failures teach more than successes-thanks for sticking with the process. This tired, old lump of a B7 will be out bombing the Autobahn in no time. Prost!

[@TheDavidb138]

Definitely my favourite KZbin channel by far, not only does Sreten teaches us to fix old bmw (which are by far the best make of cars) but to have patience. Keep up the good work and keep the content classy 🙌🏻

[@azuritew210]

While you were opening the engine back, we can see how well you assembled it for real! You do amazing work! Happy Easter!

[@someoneneintown]

"It is not your fault, but it is your problem ... " :-) Well, at least it is good to know, that you did not do anything wrong. Fingers crossed for the replacement engine!

[@bengriffiths5096]

The drunk guy was amazing!! Well handled ! 👏👏👏

[@AutisticMorty]

Did the drunk guy say he murdered his wife? 😱

[@cmcauthor]

Win or lose, your viewers are still with you. Thank you for sharing your work with us, and don't beat yourself up too much!

[@slavi199]

Now I know why I have see so little Alpina B7 content from this generation on KZbin, only Hoovie and Sreten. Huge fan, watching your work is therapeutic, keep it up! P.S Would love to see a E24 M6/635 Csi on the channel its my favorite car!

[@patriciomunoz2830]

Legit street cars is working on one also

[@mrproffesorr75]

@@patriciomunoz2830 евала станиславе

[@NathansBMWWorkshop]

The waiting on parts has us down right now, never can get stuff fast enough to keep regular videos posted lately

[@anthonyk]

So grateful it's not his fault

[@fiestamatic5736]

(I clearly misunderstood! my bad sorry)

[@AJR-gg]

@@fiestamatic5736 Nathan is talking about getting stuff in fast enough to post his own videos, not M539 Restorations. Calm down bro????

[@juggnautbitch]

@@fiestamatic5736 read his post again then question your reading comprehension.

[@fiestamatic5736]

@@AJR-gg yes thanks i thought in the first place that he was talking about M539 restorations video because some people are like that in his instagram comments saying that he don't upload enough...

[@brycemalton4841]

I have spent the last days in disbelief over how you took the hit on the Alpina and picked yourself up. It would have destroyed me. What an inspiration. Keep up the fantastic and quality work.

[@theoneandonly1802]

Man, you have created something A lot more than just another car related KZbin channel. What you have created is a Car Drama TV Show for Men with emotional rollercoaster attached to it.

[@djs1285]

" i am getting pretty good in this" that one made me laugh, i like how you always try to look everything from bright side. Wish all the best man, i adore watching your videos, they inspire. You said you did not sleep very well, pleas take care of your self, so we can enjoy more off your's videos in future. Am sure you know this, but it is not bad to be reminded, to enjoy in your's journey to goal.

[@adammesic]

Need to add some to what you said - I've been around the world and still didn't find a nation which people have more self ironic sense of humor then Serbs do, accompanied with "out of spite" attitude. Sreten is a clear prove of just pure that!

[@patrickz7908]

This was painful to watch, I feel bad for Sreten, but can't help but admire his positive attitude and hopeful spirit. Hang in there Buddy, you got this!

[@krzysztofkrupa8841]

I think, like you, that the "new" engine is the best option in this case. Keep it going! BTW this is the best KZbin channel that I ever watch.

[@jackdoe3889]

Only non-standard part is the sleeved block. Cylinders 7 and 8, the hottest ones. Heat deformation due to unproven interaction of different materials and construction. It ran fine when cold and with heat and pressure the liners deformed. The 2 metals expand in a different manner. Most likely there simply is not enough room in the block to install liners with a stable enough wall thickness. The fact that the liners have moved further proves this. You cannot bore cylinders to such uneven measurements so the only explanation is deformation. Even if you did measure them during assembly, you would not have detected any anomalities. 0.02-0.03 gap is normal for BMW cast iron blocks. You did everything right and by the book. The sleeving company is not up to the task. 10y experience hin oder her. Ending up costing you thousands. Buy a new block. It comes with new pistons. At least for BMW engines, should be the same for Alpina. Imagine having to do it a 2nd time and it failing again. Not worth the risk. Forget about the used engine. Just more frustration and needless work as a result.

[@adrianbene6733]

This is the second sadest episode after the E30. Glad you didn't lose you humor over it! Keep it up brother!

[@unknown4630]

What happend to the E30?

[@Mitchell.Is.De.Naam.]

@@unknown4630 He spun out during test driving and crashed into a tree if I'm right.

[@kristiansnnervik5165]

It seems you have acquired your first V8 living room table. ❤️

[@claudioagmfilho]

🇧🇷🇧🇷🇧🇷🇧🇷👏🏻, One of the best automotive channels, hands down! I guess we have to measure everything, ourselves, but we shouldn’t have to do this. So that, if there are any incompatibilities, we are able to see it, before building the engine. Sleeves are used on iron and aluminum blocks. So the irony of the story is that sleeves are used when the dimensions and size are incomparable with the engine block. So the one who sleeved the block didn’t solve this problem, but that is exactly what sleeves are for, also for protections so that one can change the engines performance but still the bores were all wrong.

[@AvusAndy1]

Pulling an engine out by yourself has to be incredibly difficult!! Impressive

[@grahamhawthorn2320]

Sir, you have the patience of a saint. We are all behind you.

[@2008tourer]

7:18 Poland strikes again! We as Polish car people laugh that no matter how rare car or part or accessory, there will always be one lonely offer with it on OLX or allegro :) Good luck!

[@manuelyanez1511]

It was just your time. This is life my dear Sreten. On every project of any applicable science this will happend at one point, we missed a tiny little thing that caused a catastrophic failure, we are not machines and you have done it pretty well. This might be the project of your life, but is not finished yet. Keep up the good work, you have done it magnificent.

[@TheGheseExperience]

Your relentlessness is super inspiring. I have a four cylinder Camry and there are jobs that I think about doing to it, but the work puts me off, but you’re an inspiration for that drive to get my car fixed up and not worrying so much about getting it spot on first time around.

[@XxSunRis3ScopexX]

This engine must be a pain in the ass but i can feel your passion i love how you just keep going such good humor aswell haha. Definitely gonna start watching more of your videos. Greetings from Austria Good luck with Alpina man

[@bubbamcgullicutty8966]

Well, I guess he has the right approach: Sometimes you win sometimes you loose, that's life !

[@putinisgod6814]

By the way I would recommend subi performance for a real sleeve job, they know their craft

[@YeetusChristus]

Wollte ich auch schreiben 😂

[@suciusebastian]

No matter what is gonna happen, I trust you wayyyy more than any ,,professiona mechanic" out there. Keep going.

[@jvjv9451]

Thank you for not trash talking about machinist who did restore your engine block. And thanks to machinist for taking responsibility

[@thatBMWkid]

I've never had so much anticipation for a video, but so much impending dread at the same time. I've been following for a long time--I know you got this!

[@ThePandasian34]

It looks like cyl 4 and 8 pistons weren’t the only ones unhappy 😂 someone is out with a vengeance for Dominic

[@Baqar146]

I think we deserve an update on that situation aswell

[@Flurry17]

Dominics enemies are after him 😂

[@thatguy2227]

"It's not your fault. But it is your problem." - as a longtime BMW owner I must say, there is great wisdom in those words.

[@jalos012]

Best KZbin channel!

[@kanumark]

That has got to be “the cleanest” blown BMW engine I have ever seen. I’m absolutely gutted on what happened. You’ve taken everything under consideration, prepped, and taken a tremendous amount of your time to perfect all the details on this rebuild. I’m more than confident that you’ll have this Bavarian Kitten purring again in due time. Hopefully my subscription to your Patreon will help pay for a strudel and coffee during some late nights. Amazing work, and thanks for sharing your work with us.

[@SSammy-1]

I feel sad for Sreten's wallet but im secretly happy for more content. Dont tell Sreten.

[@lukelegg9915]

if hes smart he'll sue that other garbage company for not knowing how to correctly bore an engine

[@SzwarcuKX5]

@@lukelegg9915 Yeah, good luck with that. Sue someone across the continent, thats fun, Sreten has time for this for sure.

[@SSammy-1]

@@lukelegg9915 I dont think thats smart at all. The other party seems very good attitudewise im sure they will work out something.

[@lukelegg9915]

@@SSammy-1 yea i kinda just say sue loosely, get his money back one way or another, wether that's through business or legal means

[@SSammy-1]

@@lukelegg9915 If the guy does not wanna coperate its gg

[@italianjob-vx6hp]

What a nightmare! Since you can examine the used low mileage block and buy it only if good is a solid plan. Definitely get the ruined block rebuilt and keep as a huge spare part!

[@ionutoanca]

Lesson learned for the guy who renewed the engine. Never be overconfident on your skills. It doesn’t matter how many years of experience you have behind, there will always be situations from which you will learn new things. Unfortunely, this time, you were that situation. Heads up Sreten, you are doing a great job and it is a pleasure watching you.

[@andythorne1211]

Sreton, you’re amazing. Despite your set backs, you keep pushing. Like so many of us over the last few years. Keep going mate, and can’t wait for the next one. Kia Kaha from Aotearoa! (Stay strong from New Zealand). 🇳🇿

[@NotAnArtpiece0]

Chur

[@andythorne1211]

Chur my bro!

[@diesselxxl16]

I just wanted to stop and admire your drive for work even after an engine you just rebuilt went bad, you jumped on it straight away and dove in again . That’s sheer motivation from you and it’s so admirable! I’m not a big fan of BMW’s and I don’t think I’ll ever be, but I am a huge fan of your work even though I’ve started watching your videos just recently, I am just watching them all one after another. Your videos are just so educational and full of quality content for us, and you as a KZbinr are among the very best, just a handful of this type that delivers this amount of quality. Keep it up and good luck in all your work!

[@antanta]

Make it or break it, man! You're doing a fantastic job, your sheer willpower and enthusiasm are astonishing, honestly. Best wishes from Poland. Срећно!

[@thomaswerner5821]

Sreten, speak to the guys from Subi Performance. They are also here on KZbin and I'm pretty sure they are happy to help you out with the engine. Keep up the great work!

[@nymeuznymo9507]

Push this comment!

[@tschuuuls486]

@@nymeuznymo9507 @M539 Restorations he is also an expert on sleeving blocks that are used for racing and rants about not doing it right frequently :D

[@leeeeI]

Yes, from my dozens of hours studying their KZbin videos I can confidentially say, they should be able to do this job. ;) They are very precise in working and measuring and they have very good tools.

[@bulgurculture]

They really look like they know what they are doing. Sreten, check them! Look at this video when they are measuring a new block kzbin.info/www/bejne/iZWsZoN7frSIY9U

[@thomaswerner5821]

And with a 2 hours driving distance from Frankfurt, I would consider them as locals! 👍

[@DomEngines]

I had a similar problem with a 1.6 OHC engine. At first the piston 4 broke in half, the one that gets the least cooling of course. Then after rebuilding it at a shop for 5k, it scored the same death as your piston 4 and 8. The shop took full responsibility after 3 weeks of discussions. I just wanted to dump into the scrap yard and mourne. After 2 weeks of vacation I got back at it and am still rebuilding the car to this day. Your experience reminds me of mine, altho with a different engine and price tag. KYHU, my friend.

[@Gnaus76]

Im pretty sure the block was moving a little when they bored out the cylinders that’s how you get the egg shape, and the hone tool will just follow the shape it has from machining, it will never be truly round

[@malachy1847]

If inspected prior to shipping these errors would have been picked up, could have still been rebored to achieve concentric cylinders and that certificied proper clearance before leaving that machine shop, as for the cylinder liners dropping in the block m maybe the interference fit tolerances also weren't correct otherwise same wouldn't have dropped, it would be critical that this issue would be addressed otherwise things could get sketchy... and more good work down the road could be undone.

[@Gnaus76]

@@malachy1847 agree, I would not use that machine shop again, they didn’t check for tolerance, they didn’t check for roundness, they didn’t check for straightness

[@pace628]

That engine failure sucks. I can imagen how you feel about it. This episode has been very exciting. I am glad you found out what caused the break down. Thank you for sharing.

[@dannylakatos5599]

I would literally cry if i did all that work and this happened. God bless you man

[@Falcone-en4wl]

Once the B7 will be on the road again, you'll need an entire month of holidays in Tahiti to recover from this huge effort. You're great Sreten! ❤ By the way do you plan to bring a Z4 in your workshop one day?

[@rrs_13]

Hm, seems like a proper diagnostic, although I still think this has something to do with the special Alpina (r) Engine Nail that you didn't put back in. Jokes aside, it sort of takes away a bit of the interest of seeing this car getting fixed, knowing it is "yet again" in such a short amount of time. Keep at it! Don't loose courage, specially now that you know you did everything proper, and you just had bad luck!

[@mrmick12321]

We all feel with you on this one. Lot of hard work went into this. But nice to see you are tackling it with your head up high :)

[@stevebodalenko5286]

Mate I can tell you that despite being 13,000km away in Australia, I can still feel your pain, your frustration, and your obvious ANGER! You have far more tolerance and patience than I certainly have. I would have left the Alpina where it was and set fire to it!!! So much effort and money wasted because ONE person could not be relied upon to do what he is supposed to be an expert at! I can imagine what the phone call you had with the machine shop went like.

[@phillipheddon5669]

Mate I cant turn a screwdriver or tighten a bolt, your content has me glued to the screen. It was horrible what happened but it's great to see you step up and be positive. Your the guy to fix it.

[@larrykambas443]

Life’s about stories and you have a great one with this project!! 😎 Love the never give up attitude. Can’t wait to see this back on the road.

[@Gearhead2286]

Those sleeves were probably punched in and never line honed and/or measured for roundness. Thus, the egg shape. I don't think proper measurements were taken, Sreten. Not knocking on anybody but, even if you used new or your used pistons, those cylinders would have still gotten wiped out. Piston to wall clearance was very very bad lol. It was shit work 🤷

[@agen1man]

Agreed, it's a real shit-show. Trust, but verify!

[@halogod0298]

I called it. Bad machine work

[@mohammedfahmi897]

What a man ! I am really surprised of how determined you are to finish what you started. All the support for you Alpine HERO 💙 Greetings from Yemen 🇾🇪

[@MackaliMesut]

The guy at 25:45 was a spy from Alpina.

[@mariochan534]

35:21 was legendary. Made me shake off the despair I was feeling 🤣 Kep up your amazing work man, your determination is inspiring!

[@deltaw7363]

balkan humour xD

[@aleksandr_718]

For the past two weeks I was trying fight transmission leaks on my project car (Saab 9000) and when I thought I’ve got it, it started leaking again, the same day you’ve posted the video about blown engine. I feel you, Sreten. I know, the scale of problems is quite different, but your videos help me, and I’m sure a lot others not to give up on their cars. Big hello from Saint-Petersburg!

[@MiscVids731]

Exactly this. Sreten's videos motivate me to get out to the garage and keep on working on my '91 1UZFE

[@rdbaker31]

A tough episode to watch but glad you got to the bottom of it, although very frustrated at the cause. I’ve learned something again as I always do watching your videos. I guess the positive is that we’ve all learned from this experience and we all look forward to the next chapter of Project Chicago! Chin up Sreten, you are doing amazing work.

[@antoha42]

You deserve much more views Huge job High quality content can’t really find in our days KZbin Thanks for your videos

[@M1r092]

I admire your courage to go though all of this and I love your new plan. If the Alpina is to die, let it be done in spectacular fashion. Sometimes the ones that guve us the most grief are the ones we then love the most. Im definitely getting some merch to help you out, my man. Sending some Balkan vibes your way from Bulgaria, brate!

[@sat_sonic]

I cannot believe what you’re having to go through. Hang in there you got this! P.S. I recommend going with the used low mileage motor 😀

[@lwkon3113]

Bummed out about the engine but I love this video. It is the most interesting one by far. I love it when you troubleshoot engines, make it more interesting. In reality, you can't win all the time. Everyone fails and Sreten show us he is also human and that's really genuine for an auto channel.

[@fessiritari]

Cylinder dimensions may be different after cylinder head is torqued to spec. That can be one reason why cylinder is egg shape when head is off and it would also explain part of why tolerances were wrong.

[@jonasholzem2909]

How would you measure that? Put on the heads without pistons and measure through the bottom?

[@maedmaex125]

@@jonasholzem2909 With a torque plate that mimics the clamping of the cylinder head, and probably these cylinders should be honed to spec with one attached. Also the transmission clamping distorts the nearest cylinders.

[@halogod0298]

@@jonasholzem2909 torque plate.

[@patriciomunoz2830]

@@maedmaex125 sounds like BS

[@jonasholzem2909]

@@maedmaex125 Thanks for the info! Interesting stuff!

[@heavyweight6440]

Send the block to Subi-Performance and it will be great I guess :D Sreten, it really hurts me to see you so downed by all of this. It would also break my heart, all the hard work, taking measurements two times, three maybe even four times to be 1000% sure you have taken the right measurement, all the hours slowly completing the engine, trying not to forget any step. Marking all the bolts you torqued, working in BMW/Alpina spec, checking every clearance 20 times over just to be sure. I also work like that - I think I would start crying right there... You are a very good man with the will to accomplish great, even if you have to do horrendous stuff twice! Love you, greetings from Braunschweig!

[@congt9288]

From and ex Marine Engineer I can only admire your patience, perseverance and engineering skills.

[@stephenallen6419]

I feel your pain, but don't give up, I love watching these videos... and the others you do