Every junk truck and engine I have is for sale. Start making offers. Email in video description. This junk didn't end up in my hands because other people wanted to buy it. It's here because nobody else would give anything for it.
The engineers of the 71 series were geniuses... Those end drives - housings - Cams - Balance Shafts are interchangeable Front To Back, as to allow LH or RH Blower / Exhaust (Back or Front if in a Transverse install) and there are LH/RH rotation parts available.... Truly one of the most versatile engine systems made...
The amazing thing about the Detroit Diesel Series 71 engine {so named because each cylinder had a nominal displacement of 71 cubic inches per cylinder (actually 70.93”)} is that inline 6 cylinder engine aka 6-71 was in continuous production from 1938 until 1995 giving it a production lifespan of 57 years which is unrivaled in the heavy duty Diesel engine market as well as the light duty (passenger car & light truck) diesel or gasoline market. The 6-71 has a production lifespan 8 years longer than the Small Block Chevrolet engine (1954-2003). The series 71 engine was produced in both inline models with One, Two, Three, and Six cylinder and “V”-Type engines (first produced in 1957) with Six, Eight, Twelve, Sixteen, and Twenty-Four Cylinders. The 16V-71 and 24V-71 engines used multiple cylinder heads per bank to keep the cylinder head size and weight to manageable proportions with the 16V-71 using four cylinder heads from the inline 4-71 engine and the 24V-71 using four cylinder heads from the inline 6-71 engine. Additionally the using of multiple cylinder heads from other engines on these two large engines helped keep production cost down and maintain parts commonality. In addition to inline and V style engines the 71 series engine was produced as a “Pancake Engine” with the 6L-71 or 6N-71 that were designed for horizontal mounting for underfloor applications on larger Crown and Gillig school buses and transit buses such as the articulated Crown-Ikarus 286 and the GM-6046 also called a “Twin-Diesel or Duplex-Drive” engine which was two 6-71 engines Siamesed together making a 12-cylinder engine that was used in later model M4-Sherman tanks and small to medium sized boats such as the Higgins Landing craft during World War II as well other marine and off-road uses following the war. The worn and abused 6-71 that our esteemed host tortured tested to its finial demise is without a doubt the most produced heavy duty diesel on the planet today. One thing is undeniably for certain the effect upon modern world history that the “Screaming Jimmy”, “Driptroit”, “Green Leaker”, or simple “Detroit” 57 year production history cannot be under standard. The workhorse that is the 6-71 founds it way basically unchanged into every application possible from on-highway use in busses, and trucks, military equipment, marine, industrial, generators, construction, pumps, farming, and heavy equipment, in which it reliability has proved to be nothing short of legendary. Admittedly by today’s standards the 6-71 and for that matter all of the 2-Stroke Detroit’s are power pigs but when the 6-71 was first introduced it was nothing short of revolutionary. Before the introduction of the 6-71 Diesel engines were very large and heavy and as a result they were mainly limited to stationary engines or marine applications where weight and size were generally of little consequence. However the 6-71 charged all that with its use of 2-stroke engine architecture which gives the engine a power stroke every rotation compared to the 4-stoke engine which allowed the 6-71 to be much smaller than it 4-stoke diesel counterparts in an era when the gasoline engine was king. (Edit to correct syntax error in last sentence)
Not a fan of the things (2stroke Detroit's....have got a 353 and a 471), but what u listed here is a matter of fact... doesn't make me like them anymore...but they'll make noise , and run forever on nothing more than possum piss .. .👍👍
1938 with a design stage at least five years prior all without the help of computer assisted design and manufacturing. To me this is very impressive and attests to intelligence of all the people that made it happen. Thanks for your research.
This man deserves every subscriber he gets. I love this content, straightforward and to the point, with no cheesy music or intro/outro. Great video as always!
A fine mist is how an injector is supposed work, even after all this engine was put through it's injectors still work properly. That's a testament to quility. The only thing I have against Detroit diesels is that the are very thirsty. They require a lot of fuel.
@Kevin Guthrie yes it did once upon a time, including gasoline. But now it's all going up in price because of a certain old man and his cronies in the whitehouse. He's not even supposed to be there but somehow he is. Hmmm I wonder how.🙄 I don't want to speak his name because he disgusts me.
LOL... I like this man, tells it like it is, and doesn't hold back. Has a dry sense of humor. I wish there were more like him, the world would be less crazy 😂
Your videos are awesome. I love how you explain something and then jump to showing us what it looks like once it’s done. No wasted annoying Timelapse…. Just straight to business. Awesome.
Brilliant designed engine. Rugged, durable, all mechanical, well designed, versatile. Everything you could ever want from an industrial Diesel engine originally designed ore ww2. The fact it lived on so long is a testament to its design and durability. No engine has a bigger fan base than a Detroit 2 stroke.
I for one appreciate all the time and effort it took to disassemble this Detroit and all the other engines to show what happened. That’s a lot of work and time spent filming and editing. Thank you!
I was a diesel mechanic for over 30years. The Detroit 6V71, 6I71, 6V53 and 8V53 were built like tanks. I only experience one run away in my life time and it was frightening but yet exciting. I retired in 2017 and I do not miss working on the tractor/trailers.
I wasn’t aware of the inline 6 two stroke detroits. I only really knew about the “screaming jimmys”. Drove a V6 in some old Prevost coaches. One of these days I gotta find the farm that had an ‘81 Peterbilt cabover in pretty good shape. Had an 8V92T in it. Told me back then he’d take $2000 for it. Would make for a fun project.
They made a 1-2-3-4-6-8&12 cylinder Detroit’s both straight and v configuration naturally aspirated-all had blowers and turbo over blower applications.
🤣🤣🤣John Finney, My Dad's farmer machinist friend. Back when Cummins was having issues ... John would buy a Versatile or Steiger and swap the junked Cummins for a Detroit. He said, "A Cummins is a piece of junk and a Caterpillar is an expensive toy"
Good to have in its time; the world is a better place now that these smoky two strokes are moved to the scrap metal pile. Thanks for showing what you did. Too bad you didn’t get to make it explode like you wanted…I’m glad it was tougher than that! Keep yourself Safe and Healthy, we need you!
No Man don't say that, it was an Excellent Video!! I've always worked in 4-stroke engine, gas and diesel and never seen inside a 2-stroke Detroit, been in Cats and Cummins. We learn something new every day. You'd be a Good Teacher!!
Back in the day them sob's were in everything screaming all day long. My first experience with one was my second cousin bought his first semi, a fleet star 2000 with a 671 and hauled grain from the field to the twin cities. I was just a kid but thought the dam thing was always on the verge of blowing up.
Greg Penner those were the days, right after I35 was finished, truckers waved to one another, no CB’s and was always looking in the mirrors and hanging out the windows looking at one another and letting each other know if there was a bull ahead on the road. Most grain trailers were not belly dumps and the elevators had a lift that picked the whole truck up to dump it. Was something to see for a young kid.
@@oldfarmer4700 they still have and use those lifts. They load DDG onto barges through there these days and there’s a lot of end dumps that go through there. It’s really kind of nice going there now. Unlike before when we’d camp out for the whole day for one load. Although that was fun too if you didn’t mind not making any money. Guys would bring BBQ grills and things like that.
671 Was one of the Greatest Diesel Engines ever built I was a firefighter from New York our Fire Engine had a 671 for ten years it never failed us leaked a lot few time I remember it pumped for 26 hours straight
Brings back a bunch of memories !!! Designed on a drafting table with a pencil and paper NO COMPUTER !! there emp proof etc versatile enduring capable engine's that started out for landing craft HIGGINS boats in WWII they've been and done everything you can imagine. A TRUE PIECE OF AMERICAN ENGINEERING AND DESIGN AND PRODUCTION LINE HISTORY THAT WILL NEVER BE EQUALED !!! great video and I'm a CAT man 😁😁😁 love em hate em they'll never die. All the best to you and yours Sir.
I skippered a delivery trip on a small coaster that had a V8 71 Series. What a great engine! It purred along without stopping all the way from Gibraltar to Plymouth - 8 days. One of the crew told me it ran away occasionally and one time they'd covered over 20 nautical miles before getting the thing back down again!
These engines and all their cousins of the 2 cycle version gave always had very good to weight ratio and they are very easy to work on - the bigger versions were a pain in the ass to set the injector rack on because you were actually dealing with 4 racks connected together ... if you weren't careful you could burn down 4 cylinders with a messed up rack setting. The 71 and 53 were dry liner engine and it required some skill to get the proper liner to bore clearence. The 92 series and 149 series were wet liners and much easier to overhaul. The detroits were very popular in marine applications and generator applications - they built the 16-149 up to 1500 kw and would put them in hospital applications that had to be up and at full load in 10 seconds or less ... you could always tell when your Detroit generator got to 1800 rpm - your nose would start to bleed... oh and our host made a little error when he made the remark about the top bearing always showing the most wear. In a 2 cycle engine there is a power stroke every time the piston comes down - so since the piston never has to be dragged down by the crank all the wear is on the bottom bering shell... I worked for the Detroit distributor in Dutch Harbor Alaska back in 1989 and 1990... and learned this - commercial fishermen can wreck an engine in every possible way and a few ways nobody has ever heard of... but on the other hand I have seen the 12-71 powering a generator turning 1200 rpm last 30,000 hours with good maintenance.. go figure.
I failed to specify that it is the main bearings where the wear is always on the bottom shell - the rod bearings always show the most wear on the top shell... this is caused by the power stroke that is applied to the rotating assembly with every down stroke of the piston ...
Love the inyector demostration. You got me thinking in the 2 troke Detroit .... why there are 4 valves .... intake is done from the liner once piston goes down and I undestand that blower push fresh air inside while expulsing the combustion gases out. So ... the valves are just for EXHAUST ? .... Love the concept. Not for eficiency, but you gota love the simplicity.
over the last 74 + years I been around working many different kinds of race cars. Diesel have not come up ... Yet now they are in your face in all kinds of Racing, pulling, boat, name it they there. Your doing a great job showing what's up
Thanks for taking the time to tear it apart and show us the guts. Worked on plenty of E model Cats, C15’s, N14’s, and ISX’s, but had never seen inside an old 2 stroker. Always loved the sound though….. Hope to see you sooner rather than later.
@@bjbeardse Nope. Mechanic for a small fleet of Pete’s and Kenworths. We have around 70 power units pulling A train belly dumps and pneumatics, and also some B train flatbeds.
Funny though, when I hired on, there was a ‘96 Star Car there. 46K rears, triple frame, E model Cat. Not a bad truck, but needed the entire state of Montana to turn around.
Reminds me of when I went to school for these engines in early 1980, the Navy used to have lots and lots of them. They still use them in some applications.
@KT3406E I cannot believe the 'good' condition of that engine after what you did to it! These Detroits are seriously well engineered and built! I wish i could get my hands on one here in the UK.
If we stuck an alternator, rectifier, smoothing capacitors and an inverter onto the end of one of these, it would be still be providing emergency power to the house and workshop when we're all dead and gone.
You make fun of these Detroit 6-71s cuz of lack of power and high fuel consumption but what you're forgetting is these were around long before WWII and were better than anything CAT, Cummins or anybody else had, these diesels were the main diesel for small ships, boats subs larger trucks etc. till maybe the 70's. It's an old design that worked great, I get it, old and out dated now but they were the diesel that help win the war........keep up the good work. BTW, thankyou for not adding annoying music, long personal intros, bragging about yourself and wasting our time with useless chit chat.....think maybe giving other youtubers classes on this, you have earned my "like" and Subscription.......cheers.
I have a 6-71 running a water pump on a deep well at our farm. It's been there 30 plus years. It wasn't hard to find another to rebuild and replace it early this year. Someone just gave me one if I'd just come to get it out of their shop. Some people's trash is someone else's treasure. I like everything posted on this channel by the way and I own a couple of these very sought-after incredibly valuable engines. She really wasn't actually as bad as I thought it would be after that thrashing at max RPM. Wishing I could afford to have him rebuilt a C7 for me. I would be positive it was right, that's for certain.
We've talked about putting one on a pump, but the wells here aren't very deep and don't require much for HP. The little 4 cylinder Deeres are easier on fuel, so it really doesn't make much sense to rig one up to do it.
@@KT3406E My dad put a 4 cyl Deere in his pick up about 30 years ago. The damn thing is still running and gets nearly 30mpg. It's up to 4 owners and rattles like a pre-cup Cat, but it will not die. We didn't set up the well the first time (370') and if it wasn't for changing the mounts, etc, anything over 6oo ft-lbs of torque would do the job. Since you are reading comments, you have got to be one of the best Cat people and builders I've ever seen, and I'm old...lol Thanks for the content... Have a great day!
Great disassembly of that overheated Detroit diesel engine, I thought 2 stroke engines had no valves, so I learned that, that is not always the case. Excellent commentary and explanation what does what on there engines. Keep them video's coming.
This guy is Very good with Cats, and goes through the extra efforts to to put out the quality videos that he does... However in This video, there was Nothing satisfying about it at all... was pure Stupidity to do what he did. That engine could possibly have been a good core for a full Re-manufacturing, giving it a whole new lease on life. For those of you who seem to think that the 2 cycle Detroit's are "dead and buried".... there are currently Over, 1.3 Million of them in operation, world wide.. and more returning back to life all the time, as people locate them and are having them either re-built, or re-manufactured.
@@Romans--bo7br buddy it was satisfying to watch , dint come here for a lecture, 2 stroke diesel, is garbage for 3rd world countries. Under powered throw away motors at this point. Your the type to sneak up behind a old unless 2 stroke diesel truck and pleasure yourself to how useful it might be.
I get it! I get to see engines taken apart I would never have. Problem is, I would like to have been there to help. Sounds dumb because that’s your line of work. To me it would be a great experience. Keep it up, love every minute!
Amazing that the abuse this engine endured and new pistons, rings, liners, bearings and would be good as new. (I would suspect cracks though, definitely in the head).
I just subbed because i enjoyed that autopsy so much. Even after that incredible torture test the bearings still look that good to me is amazing. Those old oil slobbering motors were sure built to last. I never knew the blower pressurized the crankcase the way it did. I never really thought much about it but thats where the intake is so...thanks for the look around, i learned a few things.
Those engines would work well as stationary power units for sawmills, generators, etc.. I was a mechanic for over forty years on class eight road tractors and done some work on Caterpillar D-8 dozers. Watching you blowup engines is entertaining but being as I spent my life rebuilding and keeping engines from blowing up, I find watching it happen, a bit disturbing. Can`t get past it. Really enjoy your channel, thanks for making these great videos.
My dad had a workboat that was powered by a 6-71 Detroit. I attribute some of my hearing loss to standing by the motor operating a clam rig with nothing between me and it but a 1/4" of plywood. When dad finally sold the boat you could see the flywheel through rust holes in the housing. The damn thing would still start and run.
I saw the video of that 6-71 running away, so it was awesome to see the teardown. Thanks for all that extra effort that I'm sure you did not need to do :) ... I mean that seriously, not sarcastically.
Thank you for continuing to make these videos. I thoroughly enjoy watching them. Pretty amazing how some of this was actually "engineered" in the 40's and 50's.
That shaft you were messing with for the Blower from the drive gear is called a Quill Shaft . It was made to break to save the Blower from damage...in those ol 113s APC'S....IF the line doggie crank them up cold and not let it idle to warm up ...and did a quick Rev up on it ,you could about expect the quill shift to break and engine would shutdown immediately....replaced many of them ...
Say what you want about Jimmys, they are tougher than wood pecker lips. I've seen them ingest everything from gravel to salt water, and everything in between! A jimmy will get you home, Period. No small thing when you're offshore. I'm not a huge fan of them either but it had to be said. Taker easy...
@@toddgittins5692 my cousin had a 8v71 in a ford grain truck and a 903 in the other both were wornout but the 8v71 out lived the 903 the other grain truck was a ford also it was a 2 decades newer and blew up way before the 8v71
hey man that was very informitive liked the fuel valve spray shot and the inside .the rings were welded to the piston .nice job man!!!i enjoyed it very much thanks!!
WE JUST DON,T WANT TO SEE A SMART AND TALENTED FELLA LIKE YOURSELF GET HURT IN ANY WAY,.....WE NEED MEN LIKE YOURSELF.....THE KIND OF PEOPLE WHO BUILT THIS COUNTRY ...USA !!
I’d like to see a runoff between a Detroit a cat a Cummins and a Mac. See which one dies first and which one takes the most damage. That should piss off a few people.👍😁😁😁
My thoughts exactly. Considering the punishment dished out to that high mileage Detroit and how long it lasted, I wouldn't be surprised if it took the honours in a runoff.
Maybe in addition to selling engine parts you should offer these junk trucks for sale before you trash them I can use this stuff around the farm.
Every junk truck and engine I have is for sale. Start making offers. Email in video description. This junk didn't end up in my hands because other people wanted to buy it. It's here because nobody else would give anything for it.
At least you can make a few pennies to rub together from scrapping everything there.
@@nathankirschbaum3856}
It's usually not worth the time for internet sales, "Oh I actually don't have the money this week..."
I could use a chinese toaster..
The engineers of the 71 series were geniuses... Those end drives - housings - Cams - Balance Shafts are interchangeable Front To Back, as to allow LH or RH Blower / Exhaust (Back or Front if in a Transverse install) and there are LH/RH rotation parts available.... Truly one of the most versatile engine systems made...
Haha aluminum alloy :3
The amazing thing about the Detroit Diesel Series 71 engine {so named because each cylinder had a nominal displacement of 71 cubic inches per cylinder (actually 70.93”)} is that inline 6 cylinder engine aka 6-71 was in continuous production from 1938 until 1995 giving it a production lifespan of 57 years which is unrivaled in the heavy duty Diesel engine market as well as the light duty (passenger car & light truck) diesel or gasoline market. The 6-71 has a production lifespan 8 years longer than the Small Block Chevrolet engine (1954-2003). The series 71 engine was produced in both inline models with One, Two, Three, and Six cylinder and “V”-Type engines (first produced in 1957) with Six, Eight, Twelve, Sixteen, and Twenty-Four Cylinders. The 16V-71 and 24V-71 engines used multiple cylinder heads per bank to keep the cylinder head size and weight to manageable proportions with the 16V-71 using four cylinder heads from the inline 4-71 engine and the 24V-71 using four cylinder heads from the inline 6-71 engine. Additionally the using of multiple cylinder heads from other engines on these two large engines helped keep production cost down and maintain parts commonality. In addition to inline and V style engines the 71 series engine was produced as a “Pancake Engine” with the 6L-71 or 6N-71 that were designed for horizontal mounting for underfloor applications on larger Crown and Gillig school buses and transit buses such as the articulated Crown-Ikarus 286 and the GM-6046 also called a “Twin-Diesel or Duplex-Drive” engine which was two 6-71 engines Siamesed together making a 12-cylinder engine that was used in later model M4-Sherman tanks and small to medium sized boats such as the Higgins Landing craft during World War II as well other marine and off-road uses following the war.
The worn and abused 6-71 that our esteemed host tortured tested to its finial demise is without a doubt the most produced heavy duty diesel on the planet today. One thing is undeniably for certain the effect upon modern world history that the “Screaming Jimmy”, “Driptroit”, “Green Leaker”, or simple “Detroit” 57 year production history cannot be under standard. The workhorse that is the 6-71 founds it way basically unchanged into every application possible from on-highway use in busses, and trucks, military equipment, marine, industrial, generators, construction, pumps, farming, and heavy equipment, in which it reliability has proved to be nothing short of legendary. Admittedly by today’s standards the 6-71 and for that matter all of the 2-Stroke Detroit’s are power pigs but when the 6-71 was first introduced it was nothing short of revolutionary. Before the introduction of the 6-71 Diesel engines were very large and heavy and as a result they were mainly limited to stationary engines or marine applications where weight and size were generally of little consequence. However the 6-71 charged all that with its use of 2-stroke engine architecture which gives the engine a power stroke every rotation compared to the 4-stoke engine which allowed the 6-71 to be much smaller than it 4-stoke diesel counterparts in an era when the gasoline engine was king. (Edit to correct syntax error in last sentence)
Not a fan of the things (2stroke Detroit's....have got a 353 and a 471), but what u listed here is a matter of fact... doesn't make me like them anymore...but they'll make noise , and run forever on nothing more than possum piss .. .👍👍
they are a tuff motor i wanna see him put one of his cat to the test till it blows and see how far the parts go
@@randallelder486 yeah no shit...I've got a few cats too...I like them but they're overrated ...I think
Wait, were you my instructor in "C" school when I was first in the Navy!?
1938 with a design stage at least five years prior all without the help of computer assisted design and manufacturing. To me this is very impressive and attests to intelligence of all the people that made it happen. Thanks for your research.
“You get what ya get I guess” best way to describe this channel lmao great video
Lame vid. No light.
Man you have shown me so much more about these then I thought I'd ever know
Came here to see this comment.
This man deserves every subscriber he gets. I love this content, straightforward and to the point, with no cheesy music or intro/outro. Great video as always!
Learned a lot about blower motors and the fuel injector demonstration was awesome, thanks!
A fine mist is how an injector is supposed work, even after all this engine was put through it's injectors still work properly. That's a testament to quility. The only thing I have against Detroit diesels is that the are very thirsty. They require a lot of fuel.
Hunter Moss Fuel used to be cheap
@Kevin Guthrie yes it did once upon a time, including gasoline. But now it's all going up in price because of a certain old man and his cronies in the whitehouse. He's not even supposed to be there but somehow he is. Hmmm I wonder how.🙄 I don't want to speak his name because he disgusts me.
@@K-Effect Regarding the inflation fuel is still pretty cheap.
Albin Klein How about this, fuel is still cheap but to compete and afford efficiency isn't
LOL... I like this man, tells it like it is, and doesn't hold back. Has a dry sense of humor. I wish there were more like him, the world would be less crazy 😂
Glad you’re active again!
Your videos are awesome. I love how you explain something and then jump to showing us what it looks like once it’s done. No wasted annoying Timelapse…. Just straight to business. Awesome.
Brilliant designed engine. Rugged, durable, all mechanical, well designed, versatile. Everything you could ever want from an industrial Diesel engine originally designed ore ww2. The fact it lived on so long is a testament to its design and durability.
No engine has a bigger fan base than a Detroit 2 stroke.
Tbf, I just like the sound of them.
Sounds like a proper engine should sound like when it revs really high.
All parts within a series were interchangeable, amazing.1 -71 to 8V-71 .We won't see that again.
1930’s technology,still working great. That governor setup is pretty ingenious. I worked on a ton of those, mostly 8v71’s and 8v92’s. In buses.
I for one appreciate all the time and effort it took to disassemble this Detroit and all the other engines to show what happened. That’s a lot of work and time spent filming and editing. Thank you!
This is a great notification to get. Also congrats on 100k subs :)
I was a diesel mechanic for over 30years. The Detroit 6V71, 6I71, 6V53 and 8V53 were built like tanks. I only experience one run away in my life time and it was frightening but yet exciting. I retired in 2017 and I do not miss working on the tractor/trailers.
I wasn’t aware of the inline 6 two stroke detroits. I only really knew about the “screaming jimmys”. Drove a V6 in some old Prevost coaches. One of these days I gotta find the farm that had an ‘81 Peterbilt cabover in pretty good shape. Had an 8V92T in it. Told me back then he’d take $2000 for it. Would make for a fun project.
They made a 1-2-3-4-6-8&12 cylinder Detroit’s both straight and v configuration naturally aspirated-all had blowers and turbo over blower applications.
Lmao I love your savage don't care honesty about everything or nothing , need more people like you in this pathetic time frame we live in. Amen 🍻
Exactly said!! We need more "savage honesty".
Imagine saying amen to yourself
@@EATSLEEPDRIVE2002 when you say something that good you gotta lol
When he said Chinese kids would be making toasters out of it in no time that had me laughing a good 5 minutes, rare I get a kick like that
Yeah but we need less people purposely wrecking these pieces of history
🤣🤣🤣John Finney, My Dad's farmer machinist friend. Back when Cummins was having issues ... John would buy a Versatile or Steiger and swap the junked Cummins for a Detroit. He said, "A Cummins is a piece of junk and a Caterpillar is an expensive toy"
Anther great vid thanks for taking time out of your busy schedule to entertain us diesel freaks and congrats on the 100k mile marker
You might hate it but it was an amazing engine!
Good to have in its time; the world is a better place now that these smoky two strokes are moved to the scrap metal pile.
Thanks for showing what you did.
Too bad you didn’t get to make it explode like you wanted…I’m glad it was tougher than that!
Keep yourself Safe and Healthy, we need you!
Kinda enjoyed that. You went into alot more detail then guys that actually like detroits do.
No Man don't say that, it was an Excellent Video!! I've always worked in 4-stroke engine, gas and diesel and never seen inside a 2-stroke Detroit, been in Cats and Cummins. We learn something new every day. You'd be a Good Teacher!!
Back in the day them sob's were in everything screaming all day long. My first experience with one was my second cousin bought his first semi, a fleet star 2000 with a 671 and hauled grain from the field to the twin cities. I was just a kid but thought the dam thing was always on the verge of blowing up.
I spent many days sitting in Savage at harvest mistakes...
Greg Penner those were the days, right after I35 was finished, truckers waved to one another, no CB’s and was always looking in the mirrors and hanging out the windows looking at one another and letting each other know if there was a bull ahead on the road. Most grain trailers were not belly dumps and the elevators had a lift that picked the whole truck up to dump it. Was something to see for a young kid.
@@oldfarmer4700 they still have and use those lifts. They load DDG onto barges through there these days and there’s a lot of end dumps that go through there. It’s really kind of nice going there now. Unlike before when we’d camp out for the whole day for one load. Although that was fun too if you didn’t mind not making any money. Guys would bring BBQ grills and things like that.
It was on verge. You just got lucky.
Cool insight into the Detroit strangeness. Came for the violence stayed for the education lol great video.
671 Was one of the Greatest Diesel Engines ever built I was a firefighter from New York our Fire Engine had a 671 for ten years it never failed us leaked a lot few time I remember it pumped for 26 hours straight
Brings back a bunch of memories !!! Designed on a drafting table with a pencil and paper NO COMPUTER !! there emp proof etc versatile enduring capable engine's that started out for landing craft HIGGINS boats in WWII they've been and done everything you can imagine. A TRUE PIECE OF AMERICAN ENGINEERING AND DESIGN AND PRODUCTION LINE HISTORY THAT WILL NEVER BE EQUALED !!!
great video and I'm a CAT man 😁😁😁 love em hate em they'll never die.
All the best to you and yours Sir.
You are the best, I’ve been wrenching for 40 years for a living , luv the humor and could not agree more with you.
Seriously, thanks for your videos to teach us about diesel motors and it looks like they were invented early on and still work great today
I skippered a delivery trip on a small coaster that had a V8 71 Series. What a great engine! It purred along without stopping all the way from Gibraltar to Plymouth - 8 days. One of the crew told me it ran away occasionally and one time they'd covered over 20 nautical miles before getting the thing back down again!
These engines and all their cousins of the 2 cycle version gave always had very good to weight ratio and they are very easy to work on - the bigger versions were a pain in the ass to set the injector rack on because you were actually dealing with 4 racks connected together ... if you weren't careful you could burn down 4 cylinders with a messed up rack setting. The 71 and 53 were dry liner engine and it required some skill to get the proper liner to bore clearence. The 92 series and 149 series were wet liners and much easier to overhaul. The detroits were very popular in marine applications and generator applications - they built the 16-149 up to 1500 kw and would put them in hospital applications that had to be up and at full load in 10 seconds or less ... you could always tell when your Detroit generator got to 1800 rpm - your nose would start to bleed... oh and our host made a little error when he made the remark about the top bearing always showing the most wear. In a 2 cycle engine there is a power stroke every time the piston comes down - so since the piston never has to be dragged down by the crank all the wear is on the bottom bering shell... I worked for the Detroit distributor in Dutch Harbor Alaska back in 1989 and 1990... and learned this - commercial fishermen can wreck an engine in every possible way and a few ways nobody has ever heard of... but on the other hand I have seen the 12-71 powering a generator turning 1200 rpm last 30,000 hours with good maintenance.. go figure.
I failed to specify that it is the main bearings where the wear is always on the bottom shell - the rod bearings always show the most wear on the top shell... this is caused by the power stroke that is applied to the rotating assembly with every down stroke of the piston ...
Love the inyector demostration. You got me thinking in the 2 troke Detroit .... why there are 4 valves .... intake is done from the liner once piston goes down and I undestand that blower push fresh air inside while expulsing the combustion gases out. So ... the valves are just for EXHAUST ? .... Love the concept. Not for eficiency, but you gota love the simplicity.
Yes, all 4 valves are exhaust valves.
over the last 74 + years I been around working many different kinds of race cars. Diesel have not come up ... Yet now they are in your face in all kinds of Racing, pulling, boat, name it they there. Your doing a great job showing what's up
Thanks for taking the time to tear it apart and show us the guts. Worked on plenty of E model Cats, C15’s, N14’s, and ISX’s, but had never seen inside an old 2 stroker. Always loved the sound though….. Hope to see you sooner rather than later.
Lemme Guess... You drive a Western Star Ken?
@@bjbeardse Nope. Mechanic for a small fleet of Pete’s and Kenworths. We have around 70 power units pulling A train belly dumps and pneumatics, and also some B train flatbeds.
Funny though, when I hired on, there was a ‘96 Star Car there. 46K rears, triple frame, E model Cat. Not a bad truck, but needed the entire state of Montana to turn around.
So what you're showing is that a dingle ball hone, set of rods and pistons and she'd cheech right into life again. Impressive
The injector demonstration was pretty cool. Always neat to see the guts of these dinosaurs.
I look forward to every video you put up man. Learning a lot and thanks for putting them together for us!
I keep expecting him to say "we'll leave the light on for you" 😆
Reminds me of when I went to school for these engines in early 1980, the Navy used to have lots and lots of them. They still use them in some applications.
The us army still uses them to this very day in self propelled howitzers 8v71
that was certainly the very best overall inspection we have seen thank you from the UK
Love your videos, you've got a gift for explaining stuff in a way I get. Thanks 👍👍
Them old 2 stroke Detroit's were some TOUGH engines
@KT3406E I cannot believe the 'good' condition of that engine after what you did to it! These Detroits are seriously well engineered and built! I wish i could get my hands on one here in the UK.
If we stuck an alternator, rectifier, smoothing capacitors and an inverter onto the end of one of these, it would be still be providing emergency power to the house and workshop when we're all dead and gone.
You make fun of these Detroit 6-71s cuz of lack of power and high fuel consumption but what you're forgetting is these were around long before WWII and were better than anything CAT, Cummins or anybody else had, these diesels were the main diesel for small ships, boats subs larger trucks etc. till maybe the 70's. It's an old design that worked great, I get it, old and out dated now but they were the diesel that help win the war........keep up the good work. BTW, thankyou for not adding annoying music, long personal intros, bragging about yourself and wasting our time with useless chit chat.....think maybe giving other youtubers classes on this, you have earned my "like" and Subscription.......cheers.
Славный был мотор, возможно кому-то из зрителей достанется хороший тостер. Жду оборотистый V-образный с укороченного автобуса. Спасибо за видео!
Bus grease monkey may like it
Внезапно, не ожидал увидеть тут придонков))
Glad you decided to tear this down, thanks for posting!
It really good to see someone working w safety always in nind
I truly enjoyed watching you pull that "ultra rare" Detroit apart. Thank you sir, I hope you have an awesome Thanksgiving!
I have a 6-71 running a water pump on a deep well at our farm. It's been there 30 plus years. It wasn't hard to find another to rebuild and replace it early this year. Someone just gave me one if I'd just come to get it out of their shop. Some people's trash is someone else's treasure. I like everything posted on this channel by the way and I own a couple of these very sought-after incredibly valuable engines. She really wasn't actually as bad as I thought it would be after that thrashing at max RPM. Wishing I could afford to have him rebuilt a C7 for me. I would be positive it was right, that's for certain.
We've talked about putting one on a pump, but the wells here aren't very deep and don't require much for HP. The little 4 cylinder Deeres are easier on fuel, so it really doesn't make much sense to rig one up to do it.
@@KT3406E My dad put a 4 cyl Deere in his pick up about 30 years ago. The damn thing is still running and gets nearly 30mpg. It's up to 4 owners and rattles like a pre-cup Cat, but it will not die. We didn't set up the well the first time (370') and if it wasn't for changing the mounts, etc, anything over 6oo ft-lbs of torque would do the job. Since you are reading comments, you have got to be one of the best Cat people and builders I've ever seen, and I'm old...lol Thanks for the content... Have a great day!
I was hoping this would be uploaded!
That video was amazing!
Also congrats on 100K subs man!! Keep up the great work!
Great disassembly of that overheated Detroit diesel engine, I thought 2 stroke engines had no valves, so I learned that, that is not always the case. Excellent commentary and explanation what does what on there engines. Keep them video's coming.
FYI: Your videos are one of three content creators that I give a 👍 to before I even start watching. Thanks for the great content!!
The way, you disassemble/ rebuild / tourcher these diesels on your channel, is extremely satisfying to watch. Thanks for makin it happen
This guy is Very good with Cats, and goes through the extra efforts to to put out the quality videos that he does... However in This video, there was Nothing satisfying about it at all... was pure Stupidity to do what he did.
That engine could possibly have been a good core for a full Re-manufacturing, giving it a whole new lease on life.
For those of you who seem to think that the 2 cycle Detroit's are "dead and buried".... there are currently Over, 1.3 Million of them in operation, world wide.. and more returning back to life all the time, as people locate them and are having them either re-built, or re-manufactured.
@@Romans--bo7br buddy it was satisfying to watch , dint come here for a lecture, 2 stroke diesel, is garbage for 3rd world countries. Under powered throw away motors at this point.
Your the type to sneak up behind a old unless 2 stroke diesel truck and pleasure yourself to how useful it might be.
I probably sub to 10 channels on here, but this is my favorite. Old boy disappears for a few months and then 2 vids.
As the safety police commander, I approve of this oil pan removal technique.
I get it! I get to see engines taken apart I would never have. Problem is, I would like to have been there to help. Sounds dumb because that’s your line of work. To me it would be a great experience. Keep it up, love every minute!
A great feature about DD is getting the Pistons, rings pre installed, connecting rods and liners as 1 unit. Drop in and done!
Amazing that the abuse this engine endured and new pistons, rings, liners, bearings and would be good as new. (I would suspect cracks though, definitely in the head).
Informative as hell and deadpan funny as hell. One of my favorites.
That was very MUCH a fascinating video! ..... LOVE watching these tear-down videos here in the UK 😎
Thank you.
Thank you for the teardown and commentary! Your videos are always great watching.
Detroit 6-71 scrap into a Chinese made toaster, LMMFAO!!!! Love your channel, CONGRATS on passing 100K!!!!
Thanks for breaking that engine down. I love how they sounded .
Good to see another video from you thank you
I just subbed because i enjoyed that autopsy so much. Even after that incredible torture test the bearings still look that good to me is amazing. Those old oil slobbering motors were sure built to last. I never knew the blower pressurized the crankcase the way it did. I never really thought much about it but thats where the intake is so...thanks for the look around, i learned a few things.
Don't know shit from shinola when it comes to engines, but I enjoy watching and listening to this guy.
Those engines would work well as stationary power units for sawmills, generators, etc.. I was a mechanic for over forty years on class eight road tractors and done some work on Caterpillar D-8 dozers. Watching you blowup engines is entertaining but being as I spent my life rebuilding and keeping engines from blowing up, I find watching it happen, a bit disturbing. Can`t get past it. Really enjoy your channel, thanks for making these great videos.
Good to have you back brother
It was worth watching to the end..."Chinese thirteen year old making toasters" That was very funny.
We’re the ones buying them. The joke’s on us.
My dad had a workboat that was powered by a 6-71 Detroit. I attribute some of my hearing loss to standing by the motor operating a clam rig with nothing between me and it but a 1/4" of plywood. When dad finally sold the boat you could see the flywheel through rust holes in the housing. The damn thing would still start and run.
Congratulations for 100k subs!
I like your cool sense of humor.You do know diesels thats for sure.
I saw the video of that 6-71 running away, so it was awesome to see the teardown. Thanks for all that extra effort that I'm sure you did not need to do :) ... I mean that seriously, not sarcastically.
Loved the toaster comment..!!! Needed the laugh this morning
Thank you for continuing to make these videos. I thoroughly enjoy watching them. Pretty amazing how some of this was actually "engineered" in the 40's and 50's.
Best video on 671 yet Iv seen, thanks man!
Being an Old Detroit man,I enjoyed the whole thing!!!
Why is is so satisfying to watch an engine teardown? I guess I just like to see how things work inside.
Always great notification to get. And congrats on 100k subs!!! At 5:00 in, that's one way to get your meds.!
That shaft you were messing with for the Blower from the drive gear is called a Quill Shaft . It was made to break to save the Blower from damage...in those ol 113s APC'S....IF the line doggie crank them up cold and not let it idle to warm up ...and did a quick Rev up on it ,you could about expect the quill shift to break and engine would shutdown immediately....replaced many of them ...
Dudes dry humor still cracks me up 😂
Say what you want about Jimmys, they are tougher than wood pecker lips. I've seen them ingest everything from gravel to salt water, and everything in between! A jimmy will get you home, Period. No small thing when you're offshore. I'm not a huge fan of them either but it had to be said. Taker easy...
My dad has a yacht. Has two 6-71 TAs. I pissed in the intake side of one of em and nobody ever knew
Try pulling a heavy load with one in a truck, your opinion my be different.
@@toddgittins5692 my cousin had a 8v71 in a ford grain truck and a 903 in the other both were wornout but the 8v71 out lived the 903 the other grain truck was a ford also it was a 2 decades newer and blew up way before the 8v71
They’ve been pulling heavy loads in trucks since 1938.
@@toddgittins5692 Man up and drive the thing, you can't lug one around like a 4 stroke.
This is my new favorite channel👍
That engine is in pretty good shape considering you ran it to almost destruction. I’m impressed.
Amazed that the bearings held fairly well during its life and final abuse.
hey man that was very informitive liked the fuel valve spray shot and the inside .the rings were welded to the piston .nice job man!!!i enjoyed it very much thanks!!
Love your videos and demos! Both the demolition and demonstrations!
Thanks! It amazes me how much abuse some components can take
I enjoyed it. It was cool seeing what parts were toast and which weren't. Looking forward to buying one of those Detroit toasters lo ok
2 stroke Detroit's just find their way to you're place so you can put them out of their misery great vids bud
Always looking forward to your videos, even if its dismantling an old junk engine.
Great vid, was right there with you. Very enjoyable in a lazy Saturday morning down under.
Best vid I saw all week. Thanks
WE JUST DON,T WANT TO SEE A SMART AND TALENTED FELLA LIKE YOURSELF GET HURT IN ANY WAY,.....WE NEED MEN LIKE YOURSELF.....THE KIND OF PEOPLE WHO BUILT THIS COUNTRY ...USA !!
Always have that same thought whenever I use one of those garbage 3 jaw pullers.
Congrats on the subs. Screwing around blowing stuff up is fun and your serious work is top-notch. I've learned from both.
Great to watch you keeping yourself amused and putting on a hell of a show couldn’t stop laughing great one
i never get tired of this guys content. funny fckr
I enjoy all your videos. Learn a lot.
Had two pickup trucks in my life, both diesel. No substitute.
One heavy duty to another, well done for making light of this engine, well done sir.
The runaway king ;)
I’d like to see a runoff between a Detroit a cat a Cummins and a Mac. See which one dies first and which one takes the most damage. That should piss off a few people.👍😁😁😁
Best include a Cat and Thirteen Letter Shit Spreader too! For completeness...
My thoughts exactly. Considering the punishment dished out to that high mileage Detroit and how long it lasted, I wouldn't be surprised if it took the honours in a runoff.
Detroit would still be running after the cat and Cummins grenade and blow parts all around the room
@@wendelpfefferkorn2940 Oh shit, here we go... Classic battle of the blocks.