@@PSboy_VII no he heats up the cylinder to make it expand and cooled the piston so it shrunk so it would go in easier, if they were both cold they would both be small making it harder
@@bok..Not that expensive, if you're using it every day. To keep around just for once a month use, yes. Gotta have some connections at a local university to source it cheapest...
Used to install sleeves like this ALL THE TIME. Turns a .0025" interference fit to a nice slip fit. Also gives you time to align the flats on the sleeves perfectly if they butt up next to each other or have an interrupted cut at the bottom of the cylinder that needs to be installed a certain way like the 996 Porsche. Another nice thing about doing it this way is that the sleeve expands into the recieving bore instead of pressing through the interference and eliminates any chance of galling. I always preferred to put some Loctite 620 sleeve/bearing retainer in for added measure.
is condensation between the cylinder wall and the sleeve a problem at all? I feel like I don't want my engine to be moist when assembling it but I can't find a reason why it should be an issue
@@ringlord555 True, but the comment does address a valid point. Liquid nitrogen is very cold, colder than dry ice. It freezes every gas/liquid that has a freezing point at a higher (warmer) temperature than itself and does form a frost layer (H20 and C02) around the sleeve if you're not fast with this process. In my experience this has caused zero issues when installing sleeves. Because of the temperature differential the block may as well be 500°F (as far as the frost is concerned) and will sublimate instantly if it's not too thick. Let the sleeves normalize in the nitrogen, grab it and plop it in. Done.
Piston rings never go that high regardless, sleeve is light enough that tgey won't even leave a mark on it. People talk too much and do too little from what i see 😅😅
Thank you for sharing this video. I seen one with two man installing sleeves with a block of wood and a 8 lb maul and at the end said."that's the way its done boy"
@Repent.Believe.obeyJesus either a press, or beat it. Yea you can cool the sleeve and heat the block but there's still more crush than a flanged sleeve so it needs to be "forced" in essentially so it doesn't come out.
Just heating the cylinder walls will actually make them contract - the hot metal in the middle expands, hits the cold metal and presses in. You want to heat the whole block evenly if you can. Put it in an industrial size oven if you have one around, set it to about 300 degrees. Not too hot or you can mess up the metal. Cool off the sleeves, pull out the block, drop them in and then let it cool out by air.
Why do people always have to find something to bitch about obviously the guy has done this before and knows what he’s doing can y’all agree on that good work my man keep it up forget all the haters they’re just jealous and calm down I’m just joking people
You don't really have to even heat the block. They'll still drop in straight out of the dry ice with the block at room temperature. They used dry ice at the shop i worked at in Beaumont TX. And they never heated the block.
@vineethvenugopal8613 the extremely cold temperature shrinks the metal so it slides right in. Then as it returns to room temperature it will expand and fit really tight without the need for anything else to secure it.
I know cryo can be used to make some steel parts more durable, but I think that needs much longer time at temperature. Honestly, this isn't that big of a temp swing. If the bore is like 500 F, the coolest the sleeve can be is -320 F, so like 800 F.
Also as a welder... Shops I've worked for had me superheating cast and placing chilled pins n grommets in sensitive parts every day. I'm 100 percent sure it won't harm it.
You been watching too many Hollywood movies it's not like that at all, we don't heat the blocks if you leave in liquid the correct length of time and block is at reasonable room temperature, there's only about .006 -.008 interference fit, if your scared to get one stuck then put block in hotwash to warm it a little, been using liquid nitrogen for over 40 years and tested what does and doesn't work some times deliberately sometimes no so deliberately and the best part about using shrinking from cold is as the liner or bearings etc come back to room temperature they actually seat as good as if not better than pressed fitment
Yes, I'm here to say these guys who have done it for so long successfully are doing it all wrong. Am I willing to show them how it's done? No, easier just to sit and type judgement 😏😅
Nitrogen freezes sleeve causing it to shrink. While blowtorch heats up cylinder causing it to expand.This even works when leaving sleeve in the freezer overnight. And u have a perfect fit 💯
We used to buy a block of dry ice when installing Mack sleeves. We would break it up and drop it in all six and you could hear them shrinking. But you had to be fast when installing them they could warm up really fast.
Thermodynamics says heating only the inside of the cylinder is bad, because it will make the hole size smaller because the engine block doesn't magically transfer heat within 5 seconds
Yep, I've seen dad keep those sleeves in the garage freezer heat that block even all over and just slip that sleeve right in. No effort. Just make sure it's at the right rotational degree so the rings don't catch an edge 👍
Flawless job, but did you know that unless you heat the entire engine block, placing heat in just the bore will actually make it smaller, I tried this with a micrometer, bore was machined with a torque plate, I’m a machinist and I was actually blown away
Nice and easy going down Iv seen sleeves being hammered in after being submerged in dry ice and I would say to myself I would not want a motor that has the sleeve hammered on This is what should happen when done properly
I saw another video which demonstrated that heating a hole made it smaller. Not sure if that applies here because it was a 1/2” hole in a larger piece. But the hole definitely got smaller as the piece it was in got hotter
Im no mechanic, but when anything gets heated it expands in ALL directions. So heating a hole will make the outer diameter bigger and the inner diameter smaller. Maybe he is getting rid of the moisture in the cylinder instead, who knows. But heating it up works against him in fitting the sleeve.
This is the way to do it, but do your math first ... make sure you expand the hole enough with heat and the liquid nitrogen shrinks the sleeve enough. Otherwise, you'll be beating it in with a mini sledge and a block of wood when it gets stuck. You also have to act fast when doing this, no time to dilly dally around.
I got a machine shop question because I'm just really curious, does leaving the motor make more power? Or is it only because there's not enough cylinder wall to re-bore?
This is exactly how it’s done! I’ve been around the world since yesterday and I can promise you……Ya just don’t beat cylinder sleeves in for no reason on any application!👍
That's the same way we put the axle bearings on my differential except in reverse. We put the bearing in a baby deep fryer. Well, we don't fry babies, it's called, i think, a Fry Baby. Any hot oil would do the same.
Genuine question, does freezing the metal and then putting it into a heated (for expansion I’m assuming) socket, would the heat shock be enough to fuck up the metal comp? Or would it be minimal?
Tendo estrutura e sabendo fazer fica mais fácil Agora Para aqueles que criticam quem senta a marreta Tenta fazer isso na beira da estrada, ou em uma retifica no interior praticamente sem estrutura com maquinário da década de 50
I don't know the reliability metrics on these rebuilds but wouldn't the 2 extreme temperature differences cause either the sleeves or the block to fracture when they come into contact with each other???
The last thing I do is use a pair of channel locks on a brand new sleeve and if you get the sleeves cold enough you don't have to heat the block up with a torch
How does the heat plus liquid nitrogen temps not cause cracks. I know the block is only heated enough to give enough expansion to fit the supercooled sleeve in, but I would think with how brittle liquid nitrogen makes everything else, the sleeve would crack
Dry ice in an esky for a few mins as a well. Easier to get than liquid nitrogen as most stores will have dry ice. Well in country Australia that is. Unsure about the US
That torch needs to be in the center. Do not touch the walls of the cylinder. This was a cylinder sleeve normally put in diesel engines. Best let the machine shop put the sleeves in. This can be screwed up if not careful
i used that method growing up when rebuilding my motocross bikes every 3 years. id throw the crank bearings in the freezer over night and throw the crank casing in the oven or use a heat gun and the bearings would just drop in easily. cold shrinks the metal and heat expands the metal.
I'm guessing because the liquid nitrogen makes the sleeve so cold it semi-shrinks and the torch heating the block making it expand, therefore making it an easy slide in process (obviously, I'm guessing, but alot of ppl r completely clueless)
Wouldn't the heat in the cylinder make the walls expand inward making it an even tighter fit??If the surface gets hot and expans it has nowhere to go but inward! Obviously it still went in easily but I give most of the credit to the liquid nitrogen!... and I don't really think he got the cylinder wall hot anyway...
Just a noob quick question I hope someone can educate me on. Heat expands..cold contracts. What is the possibility of either the sleeve or cylinder boar cracking, as a result of the difference in temperatures? 👍
Thats how its done , no hammers or open toe sandels involved .
😂
🫡
Nice way to crack the block
You speak from the heart 🤣
Good way to warp your deck
Heat expands, cold shrinks simple science made that 10x easier
can someone then explain to me why people dont just cool both pieces? woulndn't that make it eve easier?
@@PSboy_VIIcuz it would make them both shrink
@@PSboy_VIIit will shrink both piece which defeats the purpose of it
well yeah but wouldn't two small pieces make for an easier fit than when one is shrunken and one expanded? What am i missing?
@@PSboy_VII no he heats up the cylinder to make it expand and cooled the piston so it shrunk so it would go in easier, if they were both cold they would both be small making it harder
This method looks slicker than pressing the sleeve in with hydraulics.
Liquid Nitrogen is pretty expensive so if you are rebuilding alot of engines this is not cost effective.
@@bok..Not that expensive, if you're using it every day. To keep around just for once a month use, yes. Gotta have some connections at a local university to source it cheapest...
But it's still like 2 bucks a litre. And you can pour it back in the Dewar when you're done (except what you vaporised to cool the sleeve, of course)
Dry ice is a option
@@bok..liquid nitrogen is super cheap.
Finally someone doing it clean ! No hammer, no bruteforce, pure slick n' slide :)
Amennn :-)
Whiffed on the pliers though. He could have handled the sleeve with thick gloved hands instead of putting scratches on the sleeve.
@@user-wq5ob8nb1tthat gets bored out...
me when your mom
@@cunjoz cute, haha virgin
Dry ice works good as well. Been using it for 25 years.
Yeah, but you can't use the leftover CO2 to make icecream.
@@petert3355good point
Good to know I can do this on dry ice, I'll probably be using it in the near future, thanks!
Isn’t dry ice the same thing as liquid nitrogen?
@DailyTv22 nope.
Dry ice is solid CO2.
Liquid nitrogen is Liquid N2
Used to install sleeves like this ALL THE TIME. Turns a .0025" interference fit to a nice slip fit. Also gives you time to align the flats on the sleeves perfectly if they butt up next to each other or have an interrupted cut at the bottom of the cylinder that needs to be installed a certain way like the 996 Porsche. Another nice thing about doing it this way is that the sleeve expands into the recieving bore instead of pressing through the interference and eliminates any chance of galling. I always preferred to put some Loctite 620 sleeve/bearing retainer in for added measure.
is condensation between the cylinder wall and the sleeve a problem at all? I feel like I don't want my engine to be moist when assembling it but I can't find a reason why it should be an issue
@Simon-bu4kc liquid nitrogen quickly turns to gas at room temp, none of the actual liquid stays on the part.
@@ringlord555 True, but the comment does address a valid point. Liquid nitrogen is very cold, colder than dry ice. It freezes every gas/liquid that has a freezing point at a higher (warmer) temperature than itself and does form a frost layer (H20 and C02) around the sleeve if you're not fast with this process. In my experience this has caused zero issues when installing sleeves. Because of the temperature differential the block may as well be 500°F (as far as the frost is concerned) and will sublimate instantly if it's not too thick. Let the sleeves normalize in the nitrogen, grab it and plop it in. Done.
@@ringlord555 I was thinking about moisture drawn from the air due to the temperature difference
Great thread
This is how the factory does it with valve seats and liners. Well done.
I usually just show the sleeve a picture of my mother in law
THE SLEEVE ISNT THE ONLY THING THAT CONTRACTS!
For the people saying its ruined from using pliers on it clearly arent the brightest bulbs in the pack.
Wut there’s no way the knurling on the Pliers didn’t leave a mark not saying it won’t run but it’s definitely a detriment to the engine
Clearly you like must like to eat crayons.
@@EliAngwin”clearly you like must like to eat crayons” - illiterate crayon enjoyer
Not ruined, but it is stupid to put pliers on a fresh sleeve like that
Piston rings never go that high regardless, sleeve is light enough that tgey won't even leave a mark on it. People talk too much and do too little from what i see 😅😅
Thank you for sharing this video. I seen one with two man installing sleeves with a block of wood and a 8 lb maul and at the end said."that's the way its done boy"
That is quite literally how it is done on sleeves that aren't flanged.
@@ethandezwartit’s A way to do them.
How do you do them is the question?
@Repent.Believe.obeyJesus either a press, or beat it. Yea you can cool the sleeve and heat the block but there's still more crush than a flanged sleeve so it needs to be "forced" in essentially so it doesn't come out.
Just heating the cylinder walls will actually make them contract - the hot metal in the middle expands, hits the cold metal and presses in. You want to heat the whole block evenly if you can. Put it in an industrial size oven if you have one around, set it to about 300 degrees. Not too hot or you can mess up the metal. Cool off the sleeves, pull out the block, drop them in and then let it cool out by air.
Why do people always have to find something to bitch about obviously the guy has done this before and knows what he’s doing can y’all agree on that good work my man keep it up forget all the haters they’re just jealous and calm down I’m just joking people
Someone could do any job in the world perfectly and people on TH-cam will find a way to bitch about it.
People bitch because its a way for them to prove superiority. They can pretend they have more expertise and feel better about themselves.
Your First comment is right on point!
This! Exactly. Some people are just cranky and they take out their anger on strangers on the internet. I feel sorry for them.
Omg you used pilers to hold the sleeve, it's no good no , it's marked it up .. its fine people , light pressure is not going to hurt that sleeve
Holy shit, someone doing it correctly on a short, that’s a first.
Ur the only comment saying this lol. Fvckers on the internet think they know everything. No matter what
He grabbed and marred it with channel locks😂 this is not right
You don't really have to even heat the block. They'll still drop in straight out of the dry ice with the block at room temperature. They used dry ice at the shop i worked at in Beaumont TX. And they never heated the block.
Could you please tell me why they are using liquid nitrogen here.
@vineethvenugopal8613 the extremely cold temperature shrinks the metal so it slides right in. Then as it returns to room temperature it will expand and fit really tight without the need for anything else to secure it.
@@christopherrogers303 Thanks
As a welder, I am concerned about the integrity of the metal with the temp changes like that lol, looks simple and clean tho!
That was my first thought. That cracks or micro cracks it would possibly create.
I know cryo can be used to make some steel parts more durable, but I think that needs much longer time at temperature. Honestly, this isn't that big of a temp swing. If the bore is like 500 F, the coolest the sleeve can be is -320 F, so like 800 F.
Also as a welder... Shops I've worked for had me superheating cast and placing chilled pins n grommets in sensitive parts every day. I'm 100 percent sure it won't harm it.
@@tdatitanas a expert i say it got harmed because the high magnitude heat was in small area only, while the whole thing should be heated
Even if no cracks, I'm not sure if it doesn't have impact on crystaline structure.
They use pliers because yeah, try picking that shit up with your bare hands, I dare you.
you callin me a queer?
Two sticks would be Better, wood Is softer than metal...
@@TM450FI true
You been watching too many Hollywood movies it's not like that at all, we don't heat the blocks if you leave in liquid the correct length of time and block is at reasonable room temperature, there's only about .006 -.008 interference fit, if your scared to get one stuck then put block in hotwash to warm it a little, been using liquid nitrogen for over 40 years and tested what does and doesn't work some times deliberately sometimes no so deliberately and the best part about using shrinking from cold is as the liner or bearings etc come back to room temperature they actually seat as good as if not better than pressed fitment
I’m pretty damn sure you could pick that up with an oven mitt no problem 🤣🤣
I come to the comments to hear all the keyboard experts tell me how this guy is doing it wrong. I wasn't disappointed.😂
Yeah vids like this bring out all the millions of pros who've done this for 39 years and are here to tell him he did it wrong. 😂
Yes, I'm here to say these guys who have done it for so long successfully are doing it all wrong. Am I willing to show them how it's done? No, easier just to sit and type judgement 😏😅
Hahahaha
Nothing like pliers in a fresh sleeve
I was more concerned with the "Mike weld only!" on the glove while handling liquid nitrogen 😂😂
Nothing like having to bore/hone a sleeve after installing one….. 🤦♂️
@@MechanicalMafiosothey don’t know these things
Not like a fresh sleeve has to be honed anyways 🤷♂️😂🤡 you TH-cam mechanics make me laugh harder every day
Top has to get machined to fit head machine flat. will be bored to piston spec.
🏆 best sleeve installation on TH-cam hands down
I disagree' pliers on a sleeve scoring the metal .
Valve seats are installed the same way where are needed
Man that was satisfying. Hardly any resistance at all.
Thats a man who done this longer then most of us been alive boys
Yep, the Sketchers are also a clue at that 😂 lookin good too
Nitrogen freezes sleeve causing it to shrink. While blowtorch heats up cylinder causing it to expand.This even works when leaving sleeve in the freezer overnight. And u have a perfect fit 💯
We used to buy a block of dry ice when installing Mack sleeves. We would break it up and drop it in all six and you could hear them shrinking. But you had to be fast when installing them they could warm up really fast.
not a car guy, but wouldn't that thermal shock warp/crack the sleeve?
That's what I thought
The inherent geometry of the parts meeting gives a very even heat transfer so it is unlikely
Start the engine from cold and it gets very hot very quickly the difference would be a lot greater than this fitting trick.
The boring and honing process is done after the sleeves are installed so any warping or out of round condition is corrected.
@@martinfidel7086the engine block can in fact crack if it gets hot or cold too quick
thermo-dynamics...i LOVE it..this application is flawless..dry ice is just as effective..for reference there is a slight chance of explosion.
Thermodynamics says heating only the inside of the cylinder is bad, because it will make the hole size smaller because the engine block doesn't magically transfer heat within 5 seconds
I did something similar to this
It was a metal port similar to the sleeve
I used a Rapid Therm instead of Liquid Nitrogen
Yep, I've seen dad keep those sleeves in the garage freezer heat that block even all over and just slip that sleeve right in. No effort. Just make sure it's at the right rotational degree so the rings don't catch an edge 👍
Experience... not available in stores
How true 👍
Flawless job, but did you know that unless you heat the entire engine block, placing heat in just the bore will actually make it smaller, I tried this with a micrometer, bore was machined with a torque plate, I’m a machinist and I was actually blown away
Fits like a glove.nice.no hammering or kursing or swearing.😂
A refrigerator freezer works also. Just heat a little longer 👍
Simple physics is always cool. Try the same thing with A opinion, bearing and opinion The results are very satisfying
I'm surprised thermal shock isn't a problem here. That's a massive temperature difference.
Nice and easy going down
Iv seen sleeves being hammered in after being submerged in dry ice and I would say to myself I would not want a motor that has the sleeve hammered on
This is what should happen when done properly
А от такого перепада температур, ничего не будет?
No.
I saw another video which demonstrated that heating a hole made it smaller. Not sure if that applies here because it was a 1/2” hole in a larger piece. But the hole definitely got smaller as the piece it was in got hotter
The way it perfectly slid in the rest of the way when he let go of it is just 😩
Beautiful
People that have never done the job are usually the 1st to point out mistakes
It's not the way I would've done it. But I'm the best in the world and have done this literally billions of times in just the last month so... 🤷♂️
The definition of work smarter not harder is being demonstrated.
Im no mechanic, but when anything gets heated it expands in ALL directions. So heating a hole will make the outer diameter bigger and the inner diameter smaller.
Maybe he is getting rid of the moisture in the cylinder instead, who knows. But heating it up works against him in fitting the sleeve.
This is the way to do it, but do your math first ... make sure you expand the hole enough with heat and the liquid nitrogen shrinks the sleeve enough. Otherwise, you'll be beating it in with a mini sledge and a block of wood when it gets stuck. You also have to act fast when doing this, no time to dilly dally around.
I had to do this with bushings and one slight misalignment and gets stuck and expands your screwed lol
Thank you for being great because that's how it should be done
I got a machine shop question because I'm just really curious, does leaving the motor make more power? Or is it only because there's not enough cylinder wall to re-bore?
Ima have to try this if I ever have to rebuild an engine
setting hot and cold metals to fit each other,
so what actually happened after?
i know it's not just that the sleeve fits right thru the block
Science at its finest
Temperature shock doesn't hurt the sleeve?
Not not as long as you don’t let it drop down into its seat too hard
The sound when he drops it to the bottom!
А если просак и цилиндр застрянет по середине, и кувалды нет под рукой, чтобы пока есть зазор, дать пендаля.. иначе пилить, выколупывать😊
El choque termico no seria un problema?
This is exactly how it’s done! I’ve been around the world since yesterday and I can promise you……Ya just don’t beat cylinder sleeves in for no reason on any application!👍
Well done ! No oil or shovels, or mallets with goats and chickens running around !
That's the same way we put the axle bearings on my differential except in reverse. We put the bearing in a baby deep fryer. Well, we don't fry babies, it's called, i think, a Fry Baby. Any hot oil would do the same.
Genuine question, does freezing the metal and then putting it into a heated (for expansion I’m assuming) socket, would the heat shock be enough to fuck up the metal comp? Or would it be minimal?
Tendo estrutura e sabendo fazer fica mais fácil
Agora
Para aqueles que criticam quem senta a marreta
Tenta fazer isso na beira da estrada, ou em uma retifica no interior praticamente sem estrutura com maquinário da década de 50
Yup, awesome!
Sıcak soğuk,bu şekilde silindir çatlamıyor mu?
I don't know the reliability metrics on these rebuilds but wouldn't the 2 extreme temperature differences cause either the sleeves or the block to fracture when they come into contact with each other???
I love how he’s using the wrong tool to grab the sleeves !!!😮
Doesn't the low temperature of liquid nitrogen alter the sleeve's metal stucture negatively?
I would heat up only the whole block in an oven, if any
An art work
Perfect!!!
Excellent
The last thing I do is use a pair of channel locks on a brand new sleeve and if you get the sleeves cold enough you don't have to heat the block up with a torch
The piston ring doesnt go that high and even then it doesnt take that much pressure to grab a sleeve.
The liquid nitrogen is to shrink the cylinder, and then it expands in the column to create a stronger fit... right?
Would it work if I put the sleeve in my freezer overnight?
How does the heat plus liquid nitrogen temps not cause cracks. I know the block is only heated enough to give enough expansion to fit the supercooled sleeve in, but I would think with how brittle liquid nitrogen makes everything else, the sleeve would crack
Nice!
We were shown how to do this in tech school and I've never used it since. Everyone just buys new blocks for their restomods
Наверняка понадобится ещё расточка гильзы, что бы было всё ровно.
Расточка обязательная процедура после гильзовки.
Sleeve I D (inner diameter) is slightly small at room temp. Usually bore 0.20 after install.
Sometimes 0.10 (inches).
Where's the 7 Eleven guys with the block of wood, 10lb sledge, and sandals at?
Bearing races will never e a problem again…
Now THAT’s hard core 😀😎
Works for wheel bearings, but this is sweeeeeetttt 😊
Esa llama ahí no dilata nada. Bien por el nitrógeno. El calor sólo funciona si lográs calentar el bloque completo.
I didn’t see any safety sandals on so 8/10
Dry ice in an esky for a few mins as a well. Easier to get than liquid nitrogen as most stores will have dry ice. Well in country Australia that is. Unsure about the US
Few shop centers have dry ice.
Almost all grocery stores carry dry ice, u may have to ask for it. My local store has it right next to the ice cooler.
That torch needs to be in the center. Do not touch the walls of the cylinder. This was a cylinder sleeve normally put in diesel engines. Best let the machine shop put the sleeves in. This can be screwed up if not careful
I cant beleive it doesnt crack when you drop it in that chamber you just hit with the torch.
بدون زيت عندما تحاول نزعها مرة اخرى يكون الامر صعب من الافضل استعمال الزيت مثل طريقة المصنع
If only my area had liquid nitrogen
Dry ice works too.
It’s always the idiots with no experience in the comments telling what seems to be a seasoned professional how to do his job.
Y el cambio termico no malogra el monobloc??😮
i used that method growing up when rebuilding my motocross bikes every 3 years. id throw the crank bearings in the freezer over night and throw the crank casing in the oven or use a heat gun and the bearings would just drop in easily. cold shrinks the metal and heat expands the metal.
Doesn't rapid heating and cooling affect steel properties?
Would that break if dropped or crack at all from the temp stress?
What engine was this for? What use is it destined for? Curious...
For all y'all want to be mechanics , I'm seeing that he bored out the cylinders way too much. That's why the sleeve fell in like it fell in. 😊😊😊
Um no not even close
Nu uh
Tell me you've never built a diesel without telling me
I'm guessing because the liquid nitrogen makes the sleeve so cold it semi-shrinks and the torch heating the block making it expand, therefore making it an easy slide in process (obviously, I'm guessing, but alot of ppl r completely clueless)
Your guess is quite correct.
Heat expands metal….cold shrinks metal black magic at its finest
Wouldn't the heat in the cylinder make the walls expand inward making it an even tighter fit??If the surface gets hot and expans it has nowhere to go but inward! Obviously it still went in easily but I give most of the credit to the liquid nitrogen!... and I don't really think he got the cylinder wall hot anyway...
А блок не лопнет от перепада температур? Слышал только что гильзы замораживают и они со свистом заходят.
Резаком греть блок из алюминиевого сплава!?Нобелевская премия,где ты?Вот твои герои...
Why? Genuine curious question I know nothing about engine work
Looks cool as hell with the nitrogen smoking like
Using LN2 has a risk of causing micro-cracking.
Just a noob quick question I hope someone can educate me on. Heat expands..cold contracts. What is the possibility of either the sleeve or cylinder boar cracking, as a result of the difference in temperatures?
👍
ماشاء الله تبارك الرحمن
Best way to install 2 stroke sleeves! 🤘❤️
i think 2 stroke sleeves dont just fall in because of the higher tolerance because they cant spin after being installed
@@11sjv they still get the same interference. Shrinking them makes them way easier to line up.