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- Опубликовано: 1 окт 2024
- The 340ci Buick V8 was only manufactured in 1966 and 1967! In today's video we bore the block and surface the deck surfaces.
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"That aint going anywhere"
~ Every machinist 4 seconds before launching whatever isn't going anywhere through the side of the machine.
🤣🤣🤣 Famous last words.
I would rather launch something out then take another chuck handle to the shoulder again lol
@@roadmonkeytj had a guy at one of our satellite shops put a part in an engine lathe with home made jaws because the part was larger than the chuck. Last thing the young man did was start the spindle.
Had another engine lathe with an air chuck let loose on a 3' long 10" diameter billet of 4140. Threw the part into the back of the lathe into a safety wall we made, blow it across the floor into a work bench and shove the work bench into another engine lathe.
Had a guy not engage the magnet on his surface grinder and put a part shaped hole right in the side of the machine.
Another guy started a program wrong on a bullard vertical lathe and launch a 250lb assembly into the doors blowing the entire front of the machine off.
Saw a guy launch a 10" hunk of m4 out of a cnc lathe right through the glass.
It's a dangerous job and thankfully I can look back on most of that tragedy and laugh now, aside from the first poor soul I mentioned. That one haunts me. 19, first job, first day of his second week.
@@jeepmanxj I would believe it all ... I'm a CNC maintenance tech now and I get to repair all that damage lol. Worst was a lathe drive had gone bad an when when the servo reset was hit the machine is supposed to go home and slow to reference dog ... Instead this went full rapid and blew the tailstock off splitting the casting of the tailstock.
Production is worse ... They ran a 1" chamfer tool (last tool) as a 4" facemill (first tool) ... Snapped it in half ... Ran the whole program then the 4" mill was ran as a chamfer tool ... It's a miracle they didn't rip the tombstone off the table
@@roadmonkeytj i deal with a dmg mori that has a really bad issue with losing work offsets. I was like 15 parts into an order and hit start it just sent the turret to some point behind the spindle blowing the jaws off totaling the spindle bearing and blowing the locking mechanism out of the turret just making it free spin.
Was amazing. My asshole created a black hole it puckered so hard.
For some of us, these vids are oddly satisfying. Please keep em coming.
For all* of us
These could be ASMR videos
Found that same level in my dads tool box after he passed, I knew it had a specific use but didn’t know what. He was also a engine builder.
It's a Starrett 98
@@ShaunHensleyprecision bubble level
@@onkcuf Correct. We use them a lot when working on turbines.
I was once over a job and they told me it was level, I pulled out the Machinist level and the Foreman under me told me he didn't want to see that on the site again.
I want my engine rebuilt by people like you guys, but its hard when most of the people around are looking for a quick buck and to get you to come back in for something they screwed up on so they can blame it on me
Then you realize a crate LS is cheaper
@@gsilva220 it's almost never cheaper, unless you're paying someone for the labor to rebuild then it is cheaper to just buy an engine.
@@BraveNewWorld-1984 Please tell me; in which case would the labor be free?
@@gsilva220 when you do it yourself
@@LiT_Moose89spoken like a true gear head to one that is one only in show and never touched a wrench.
Cool, back when GM still made like 4 different motors. So it started life as a 340, came in as a 346 and left as a 351/352?
If there’s one profession you HAVE to respect, it’s this one. The amount of knowledge, experience, skill and wisdom needed to do this is terrifyingly high.
Wait til you get into Aerospace. Makes this look like baby work.
@@stevenespinosa aerospace is the pinnacle of human engineering
Umm doctors
U can say that about any job that you dedicate your life to, mechanic, doctor, miner, hairdresser, all of those jobs the other could do but the results would most likely be poor in every case.
When I was younger dad taught me that once you get past .030 over,you get past the case-hardening and shorten the life of a rebuild.That was 40 years ago,is it still like that? When I did my 71 hilux I had it sleeved but the shop said it was past going any more over
Just depends on the motor block and it's clearances. In theory the more material you remove the weaker it is. There's even tricks to bore out to max and then strengthen the block so it does last!
This would ring true for hardened steel parts, but blocks are typically grey iron with or without sleeves of ductile iron.
It's not hardness that kills bored blocks, it's the lack of supporting material.
Maybe a dumb question - but some time ago at least, when boring and honing the cylinders, they’d always torque a plate down on the deck face to mimic the distortion from torquing down the head bolts. I notice you don’t do this? Was that a myth?
That a real thing. It isn't necessary for street rebuilds but pays off as specific output increases. A deckplate will replicate distortion caused by head bolt clamping forces.
As a retired machinist I appreciate this video 👊
I have a bad habit of over thinking things. OCD perhaps. When using a level, can you get a bad reading if your deck is warped?
I think the level is just used to double check or give an approximation because a bubble isn't that accurate. The deck has to be flat in reference to the crank at 45 degrees so I'm guessing there's a much more accurate way than a level to set that up.
@@dirtyaznstyle4156 that't level is for 0,02mm/m. THAT'S crasy accurate.
@@dirtyaznstyle4156 you would use dial indicators and the like in the head of the machine. I was a machinist for a couple years but I’m not familiar with this particular setup seeing as it’s pretty specific to automotive machining
@@alysongr hope youre right lol
You’re not going to get that bad of a reading. you can check it with the level and most shops have more than one level and you can check it several different ways rather than just the one and done. Do you have more than one cylinder to squared off with the crank all of your cylinders aren’t going to be warped identical so you can take an average reading of each and those types of levels are crazy accurate.
Fun fact: The 340 V8 block is the same casting as the odd/even fire 231 V6. The 215, 300 and B. 350 are the same too!
Beautiful machining work!
So you’re saying this is the same block as the one in my Regal? Mine is an ‘83 Regal base with the 231 v6
@@kararodriguez7601
Yes, the same one but with 2 cylinders hacked off.
Buicks are the best. At least the old ones were
Same engine in Land Rover discovery’s? I think those blocks were the 215.
@@jermbob92
The same. Rover bought the engine tooling from Buick for their SUV's.
Many people don't but watching machine work is therapeutic for me. My ass used to fall asleep at work standing in front of my Bridgeport watching it lol
I wish you were a shop near me. I would love to send my block and head over to get some work done.
If you want to have someone that truly knows what they're doing these guys are the guys to send your engine parts to to get them done have UPS come by and pick up your block and send it to them they are the best .
This kills me (unless I’m missing something, which is likely). A bubble level to ensure correct angles for equipment that works in the 1/1000 of an inch range?
Is the bubble just to get it close enough for some digitally-controlled super leveling?
I love your confidence in your ability and the finished product proves you’re not blowing smoke. Keep on being a master craftsman, not enough around I’m guessing.
Could you just put a sleeve in that one cylinder and keep them at 30,000 or 40,000 either way just a question from an Novice
Because you would have to take out more material to put a sleeve in than it would be to just bore it to .060" over.
Love this channel! The pride you and your dad have in the work you do is obvious and very well deserved! Your customers are truly blessed.
The classic push pull hang and even kick method and quick but precise statement of "That ain't going anywhere" is what built this countrys infastructure and defeated the Nazis in WW2 and I'm glad that it continues today... The French did not believe in this statement and we see what happened to them...French fry's. "That isn't going anywhere"
That sense of nationalism and taking pride in something someone else did while shitting on other people who also didn't take part in your you're shitting on them for.
Patriotism is a disease.
I don't know why but these videos don't get old for me. Very satisfying to see such nice work!
Do you sonic test the bores of the block before machining oversize? Never had much experience with Buick engines myself, I know some Ford and other GM engines can only be bored oversized so far safely before bore distortion becomes an issue
Didn't understand a thing, but damn that sounded cool
Just beautiful like a work of art
Especially like the way you guys are so detailed and making sure that everything is done according to the book especially when you talk about making it lined up with the crank in every detail on the center line
And they stand behind their work when your good you can do this!
Will there be a full video of this?
Full-ish lol. Not a video dedicated to just this job, but I did record some of it for the vlog.
...could watch this shit all day!!
Having seen all the horror shows that come outta the factory, I’m gonna name my car Monday
So if you’re taking material away, doesn’t that create space in the cylinder for compression to escape? I’m fascinated by this.
That's why he says oversized pistons. You get bigger pistons to compensate for less material
Yes, larger pistons and rings to match. If done correctly, as it appears that it will be, this engine will probably run more smoothly and efficiently than when it was new.
As an auto mechanic i find what you do very interesting and respectable. Very good work all the time great job man. Used your tricks in the shop btw
HOW... Do Pistons even work for any period of time if the cylinders aren't Square with the crankshaft..???
I have a question if you don't mind
I have a 91 Tran am with the TPI 305 The guy I bought the car from hands me a box of 0.30 piston would that make the 305 a 306??? Or 308 I don't know if it be worth the rebuild or not the most I've found wrong with the car is valve stem seals with the touch of blow-by
I got called to an engine "rebuiled" shop⁵ once, many decades ago. The owner of that one man business engaged in half-ass mechanical work.he advertised, "Rebuild any engine for $395." He used a worn out VanNorman portable boring bar with worn out bushings. The stories I could tell about this guy would cause real mechanics to cringe. He also sharpened his carbide cutters by freehand on a greenstone...insane. Any way, I used Rottler portable boring bars with the vacuum hood on engines in frame. The difference between that guy and I was that I knew what I was doing.
I was to touch up his bore job, which cylinder walls looked like a phonograph record finish. He also used a ball hone to finish his insane bore job. It looked to me that the piston rings of his "rebuild" would be worn out after the first 30 minutes of running. The guy went out of business after only a couple of years because of his bad reputation. One gets what you pay for.
Ya I want you to build me a 6.0l vortec for my 2007 Chevy Silverado 2500hd 4x4. There is nothing wrong with it right now at all but I see your true passion for what you do. I love my truck and it still looks and drives like the day it was built. 195,000 roughly on it. I want to just make give her a new heart and some seious horsepower and still be legal in CA. Gonna look you up
Your work is really very impressive 👏👏👏👍
Is .060 over the max on a Buick engine? Just curious
Gonna run hot!!
@@ascott6804
Myth...
@@dmur612 ...thats ok for strip/street but daily isn't gonna heat? Water jackets on those were tight anyway,right?
Buicks are like Olds compared to a Chevy block. They have hotter thermostats, bigger bores, shorter strokes, and bigger valves. They’re designed for extra heat and durability. You can always heat treat the internals, cross drill the crank and cam bearings for better oil distribution, and add a supercharger for extra air.
What's the largest oversize pistons you've put into an engine?
.060 that block is junk now
Why don't you use a pressure plate to simulate assembly when you bore the cylinders?
I love to watch you cut those cylinders and true up the head. Metal shop in high school was a fun class for me and quite educational. More kids need exposure to this sort of thing. Not every kid can be a RUclips star (even though you kind of do both).
Do you ever use torque plates when boring the cylinders?
An Aerospace machinist enjoying what you do here.
We don’t use a torque plate when boring, only when honing. Boring is meant to be a “roughing” process, so in my opinion there wouldn’t be any benefit to a torque plate during boring as any distortion will be fixed during honing.
If someone has some reliable evidence that says otherwise I’m all ears, but from my own experience I don’t think it’s needed during boring.
@@JAMSIONLINE that would be an interesting test to see.
Where do you order new pistons from? Are they custom made?
Your skill set is a list work of art
You know what you're doing kid ! Keep up the good work .
60 over is better than 30 over, right guys?
It's really easy to put together an engine,
as long as the machine shop did a good job.
Just a humble observation here but at .060" over would it have not been better too to press in 8 sleeves to keep it nice and stout and closer to the original measurements? How much casting material is still left around each cylinder at this point that any cylinder may be prone to a crack is the reason why I ask? Under no way to critique the work, HELL NO, great work!
I like your theory, but at $100 bucks a pot, that's one expensive block, eventually.
@@RMinOZ1 Ouch, I did not stop to think what each sleeve (the process and sleeve) would end up costing?
So let me get this right ..you were cutting at 40 but could not achieve that so u cut at 60 now needing new pistons but isn't that way better over all for both the owner and car ..bigger piston bore equals way more bang for your buck which in term means a lot more displacement and extra power ...have I got this right !!
No. The additional displacement is negligible and 060 over means that block most likely will have to be sleeved at the next overhaul or be disgarded.
@@paisleyprince5280 ok cheers buddy wasn't sure always heard when u widen a cylinder and add new pistons and rings u get more power ..my bad ...cheers for that
I have two engines that I want work done on, i think I am fairly close to you guys
Flat true and shiney lol that last one gets me
A good engine job is pricey a cheep engine job causes problems down the road
Cheap engine job is pricey...
Down the road!
I know yall don't just use a Starrett 98 to check how level it is. What is that thing like .002" over 12"?
G a w d, I don't understand the thousandths terminology but I love ❤ this sooo much. I hv to continuously view this vid to finally start "getting it" wow 👏
.060 (sixty thousandths) is how much they over sized the bores. It's how we read measurements for engines. It means that the new pistons will be oversized by sixty thousandths to accommodate the new bore size. I hope this helps
@@jimrossabrena7955 more importantly, 60 thou is 1.524mm. one and a half millimeter is thicker than an american dime (1.34mm). Depending on the stroke it could increase the displacement of the engine by 10 cubic inches. Not an insignificant change.
What clearances do you machine the bores to .001 over ,.0015??
Was curious what the standard was for Street or high performance application's thanks
beautiful…. quality craftsmanship
340 Buick is a real torquer, drove one in a heavy 60's LeSabre, lit up the tires at will.
How are you wo sure that your able to achieve that number without blwokg through damaged sleeves...
I've been watching some of these videos, but he got me this time...in the last machining video, he mentioned this engine, but in order to get this video, I had to "like and subscribe".
I don't think I really had to do that, but here I am 😆
How often do you need to service the mill for decking blocks? Does the cutting tool last 'X' amount of passes before it must be replaced, or does it stay sharp for years?
They wear out as any tool would sometimes slowly sometimes instantly depends on the work. Im guessing these are cbn or carbide button inserts.
or change the cylinder skirts
Looks like your bubble water is low. Lol.
Myself, ever since I got a digital level, I don't trust bubble levels.
The digital gets me to within 1/10 th of one degree.
Please tell me you didn’t actually machine that to the precision of a level and a tape measure. Please...
How would You do it?
Tape measurer is only used for the depth of the cut, as going any further wont really hurt it but it would be pointless. so it dosent need to be precise, just enough so it stops when it's at the end of the bore
Do some math ……. I’m out !!!!
Nice love buick. Just got my hands on a 430. What do you think it would cost to get a cleaning in the block and heads. And a hown. I probably spelled that wrong
Good thing it’s shinny! The most important part! 🤣😂🤣
By now it’s more like a 341. 🤣😂
Unless they putting that thing in an antique….
Why?? I mean just, why!?🤣😵
Closer to 350+-. They're not a bad engine but having had old Buicks parts are expensive and harder to find. I would imagine this is going back in an original Special or Skylark.
All the best for 2024.
If it was my own engine I would have stopped at .040". That looks like it's below the ring stroke.
Badass...you have my dream job, of which would feel like a hobby if it was me!
.060 is the max usually correct?
Usually and that’s even too much for some but there are a few that can go much more such as a Ford FE/ 360/390 etc.
Is a 340 Buick really worth all that?
Yes. 🏁
Level affected by inertia over gravity suggests the Earth rotation will always shift it to the left
I think you do great work & woulld be happy having you do my engine work but that level doesn't seem super accurate. I think I'd be using my Starett 199 w/.0005"/foot grads. even though it's not a level for everyday use.
Buicks are thin wall & can be dicey @ 0.060" over. I'd sonic test if you haven't. Wouldn't that shadow at the bottom of that one cylinder been below the bottom of the rings @ BDC?
I didn’t know that a 1970 440 of mine was already bored .040 over when we got it. So we had the machine shop set it for .060 over buuuuuut the previous shop (in like 1974) screwed up squaring the deck so badly it was at .090 at the bottom of the bores. Eight sleeves later I have a twice rebuilt, standard bore engine. The things you do to preserve numbers matching components.
I’m in the NYC area and I own an 84 Coupe De Ville with a 472 swapped motor. I would love to restore it, but am also torn between upgrading the swap to an LS. Staying with the 472, what should I expect in regards to price for a rebuild of the 472?
okay so you're telling me it can only do 20 psi now instead of 26
SEND IT
I gotta ask you but one question are you good enough😮. Did you demagnetize? The cylinder block. You can do this by wrapping a very long extensioncord around and through the cylinders. Plug in a sixty watt light bulb let it set overnight. AC de magnetizes, DC magnetizes. 😅
I guess I was spoiled because all my machine work was done building NASCAR Cup engines. Never had problems like you do in the real world where some people think .002 is close enough. And it may be for a limited amount of time. Luckily everything we used was 100% machined by us no outsourcing anything. Cylinder heads had to be bought but we always cut some off the matting surface so took away and added material to the intake ports to get the best numbers on the flow bench.
"Fix it perfectly square to the crankshaft" using a level, sure ok🙄
I dont have the skill and the tools to do it, but can you use a "trash" v 8 block and if only one side is not fixable, would you be able to turn that side into a comppresor? Or maybe just the broken cilinder? Just asking because im curious. And if this is possible could you do it woth ani broken cilinder? Like you could make a air tigth seal but i wont work for combustion? Using low temp solder, jb weld, epoxy,etc?
Edit: if this possible i do find that this couñd be use for air ride on a car or truck and this would be nore unique on a build
So did all that machining increase the displacement of that engine? by how much? and will it improve performance Or will it kill the fuel mileage... Just wondering...🤔
When I get my 1988 Jaguar XJS, I'm gonna need a full engine rebuild for 8k rpm. If you guys can handle a 5.3L V12 I'll happily have you guys do the work.
Funny how it is always :the last guy' that screwed up... No way it can be this guy being off a little...
Just stop playing the blame game when there is no need for it. Otherwise, the next one will be you catching the blame for something you didn't do...
If it's going only .010" over we won't run the boring bar through it first for this very reason. If you consider you're removing at most .0035" of cylinder wall per side and the length of the sleeve, that is bugger all for tolerance of misalignment.
I worked at a machine shop like this and man it was my favorite job ever but they didn't pay hardly anything. $10 per hour and I had to drive 20 miles one way and the gas prices were about like they are today *cough cough* thanks Obama and now thanks Biden.
I operate and program a 4 axis CNC for 20 years and I love this channel you have a digital read out but all your work on these block are more or less all machining by hand ? Right ? Are you guys close to missouri I would want you to do my engine block on most these channels they don’t say anything about there indication or tooling
If i ask the machine shop to bore my block to 103.505mm what is the acceptable range for error? In mm . The car will be used daily with little performance tests with friends. Sorry idk who to ask u seem have a good knowledge about boring
The 340 was a stroked 300...Buick's only undersquare V8, only one year...'67.
I had a job cleaning and widening cylinders for a while.. but i had to quit.
That was the most boring job ive ever had.
(Dont *block* me... Just a joke.)
Ok... I'm not a mechanic but isn't 60 over thinning the cylinder walls too much? Wouldn't sleeves be better? I mean at 60 over wouldn't u have to add inter coolers and high pressure oil pump etc. ?
Since they were looking for only .040, could it have been sleeved for that oversize? Or is it just not worth it in comparison to just taking it .060?
Hey are .050 pistons for a 350sbc readily available? It looks like you might b able to get them. I have a worn .030 bore on an sentimental engine but im leary about investing the $ to do a .060" overbore with the potential issues they can have.
Nice RMC1000 Machine, however, it doesn't look like a great block squaring fixture, it doesn't reference the cam and setting it with a level means it's only as square as it was the last time it was decked.
I appreciate the work you guys do and the thorough explanations you give.
It appears that the lower shadow you mention is not on the thrust or reactive side of the piston.
It also appears to be lower than the ring travel area.
It does appear to have been caused by the prior boring not being perpendicular to the crankshaft centerline.
Under these circumstances, wouldn’t it have had no adverse affects at the planned 0.040 overbore?
Man that 340 looks like an overheating pig. There are barely any coolant passageways in the block. Unless it was a cross flow in the block then up and cross flow through the head.
I like watching your videos I'm retired now and I don't miss having to fix somebody else's screw UPS although for me it was a challenge that sometimes I enjoyed
Came into the shop as a 340 Buick and left as Chevy 350… now send it home with a juice box and Snickers for that EXTRA touch
I'm missing how checking the level on the top gives you perfectly perpendicular to the crank. If the top surface was machined wrong previously it's a useless reference.
Life would be muchhhhhhh easier if people from America would just switch to the metric system.
What d fk is 0.003"???? Holy fuk
How does that conversation with the customer go? 😅 “Sir it’s gonna be an extra $$$ for machining and we’ve got you by the balls so the bigger pistons are gonna be $$$ extra as well.”
When you guys get one cylinder that won't clean up with the boring tool, do you bore that one cylinder over and install a bigger piston just in that one cylinder?
Or do you go back and bore all of them over and use identical bigger pistons in all cylinders?
Just curious.
What can you machine on an EV drive motor? 😂. Seriously great machine shops and mechanics will be another casualty in Biden’s war on fossil fuels
Sorry for a dumb question but new to this, but when you order the pistons is the only way to make up from the size difference from stock to oversized custom/oversized pistons, or is there another way?
That's the first engine that I ever rebuilt it had wiped out the cam bearings and camshaft it came out of a 67 Buick LeSabre that ran like a scalded dog . Wish I still had it !