Did you know that there are a lot more accidents today involving 18 wheelers than there was 30 years ago. I think part of the reason is because modern semis are too damn quiet. When people heard a screaming Detroit diesel coming down the road, they got the hell out of the way!
Sadly, the loudest vehicles on the planet, still do not make up for the stupidity of those that rather text on their phones, or search for something while they are supposed to be driving. I have a friend that had a loud motorcycle, and it did not stop the stupid ass college girl from pulling out in front of him when she went to make a left turn at a light. Loud pipes only save lives, when people are smart enough to pay attention to what is around them.
I remember driving a 6-71 for a week or so while I was waiting for my highway truck to come home after my vacation ended. The boss was getting phone calls complaining about the smoke the truck put out. There was smoke laying down on the road 3-4 truck lengths behind me. But it was a glorious noise.
Love the sound of the 6-71's.. Can hear them coming a mile away..;-) Their engines sound like they are doing 100 mile an hour. when in fact they are just cruisin' at 40 mph..lol
2Stroke Diesel Power think it’s 07 and newer. Truck kept losing water, a man was at the parts store one day and told me the newer Detroit’s were notorious for blowing head gaskets. Took it to the local mechanic which found three cracks in the head which cost me 18 stacks. Still haven’t got it fixed every time I get it back the bitch starts leaking water from somewhere different. Barely got 500k on it. But I got a 94 Pete with a CAT damn near tuned wide ass open with well over a million miles and it runs with no problems and hauls ass.
I used to work at the city bus company,,yes those Detroit's are a coldblooded --itch to start,,but they sound lovely,,especially driving round the city all day,,,beats listening to all the loudmouth passengers LMAO....nice truck and video
Charcoal briquettes on a metal garbage can lid slid under the front axle. Add a can of ether and 4 spanking new 31-series deep cycles you might get it started today. The trick is to just not turn it off after Halloween. Just let it glug-glug-glug idle every night in the back of the yard.
They really aren't when the rack is run right, and they are tight. Plus, they recirculate enough fuel that it wont gel once its running. As long as the fuel is liquid, we never had trouble starting them.
The best sounding diesels....period!! Shame they don't make these beauties anymore. I used to love hearing them in the old metro buses back when I was a kid. Personally, I think the 671 is the best sounding of the old Detroit Diesel 2 strokes. Even better than the 8V92. 👌
I rebuilt a few of those 238 and 671's. Balancing that rack was tricky. And you had to have a piece of plywood to throw over the intact on first startup in case it ran away. Cool Sound. Nothing like a 2 cycle diesel.
That SOUND ,.....that F@#$ING SOUND ........I started driving in 1982 (13 year career) ,...the company I drove for had a small fleet of these and I ROARED up and down the west coast of Florida..........that sound will give you nightmares!!!
That's sweet. I drove a few of them over the years. I have an '87 Hahn Fire Engine with a 6-71 auto trans and Jake. Love running through town wide open doing 30 mph!
i got a 8v92 and starts half a crank and i got the truck out of a junk yard motors not rebuilt and had water in the oil pan and put clean oil and diesel and it the best running motor i have right now
Learn to shift the auxiliary. That's what the button on the stick is for. Then there won't be such a lag between gears and it'll sound even sweeter with the quick shifts.
yes we (he) knows that now, but it is a 4 speed with a 4 speed air shifted aux. so he just stuck it in 3 aux and drove unless on the highway he would then go to 4th aux. But now we know that you shift with aux 1-4 and then shift to second then aux 1-4. and so on and so forth. this is information that we looked up, so perhaps it is wrong. but it does sound easier, especially with a non synchronous transmission.
he shifted that pretty well for a detroit and a cold transmission. Lots of people rev the hell out of them and jam it into the next gear who aren't used to them.
post adapter is wrong one--there is a deeper one for 31-series battery that comes all the way down against the lead on the battery--making the threaded rod part of the circuit creates resistance and therefore heat.--But love these old two-stroke detroits!!!! Love the part where he says just go full throttle. Till it starts, all these old two-strokes were full throttle, it's in how the governor works.
@0:46 Adding to the problem of overheating cables , Is the cable terminal is not completely down onto the battery terminal. Poor connection makes it heat up
I was wondering if anyone was going to bring up the issue of contact resistance. Clean, tight connections over as much surface area as possible is the key to low resistance.
on the out side it wouldn't matter, they were threaded terminals and whom ever had it before us over tightened them and stripped the threads. it was melting on the inside, there probably wasn't much connection at all, hence the new battery we got made it fire up so quickly.
I go to a place to get topsoil for my moms garden and they have this machine that makes mulch from logs and debris and such they run 3 shifts 7 days a week, and that machine is powered by a 6-71 Detroit just like you got and it is just on the governor 24/7 the entire time I’m waiting to get loaded the scream of that Detroit is in the background. I love that sound so much. God knows how many hours and how many rebuilds are on that motor it’s just keeps chugging
A lot of growl and bark--fits the definition of a Detroit Diesel. "A mechanical device that converts diesel fuel into noise" haha--drove a lot of them though, and this guy did shift well, at least at the first.
I had a 671 in a GMC truck ran away due to bad blower seals pulled the emergency shut off on the dashboard and the whole handle and wire pulled right out and came disconnected had to hurry up open the hood and closed the emergency flap on the blower good times good Motors
FYI the trick to getting an old Detroit 2 stroke to start in the cold is short crank followed by a pause and repeat until it starts. This gives the combustion chamber a chance to heat up. Extended crank just melts things. Also not a good idea to use starting fluid. The cylinders are full of unburned fuel as the injectors inject more and more fuel hence the white smoke coming from the stack. The starting fluid will ignite while the Piston is on it's compression stroke before reaching TDC that ignites the unburned fuel in the cylinder forcing the crankshaft backwards. If this explosion is big enough you will end up with bent rods. Seen it many times you might get lucky a few times but eventually it's going to hurt.
You could always try heel and toeing your downshifts, or use your left foot on the brake and go clutchless (depends on the pedal placement). Thanks for a great video. I enjoyed driving my Sterling with a DD14 and 18spd road ranger
I hauled pulpwood in the late 60's and 70's with a 6-71, double stick 5/4 tran. You only use the clutch to get going and when you stop. Once your moving you don't use the clutch to shift. Fun truck to drive, pedal to the medal and keep pulling gears. Bang your head when getting in it and drive it like you stoled it.
SOOOOOO GOOD!!! 🤤🤤🤤😋😋😋👍🏻🤘 we had a ‘73 short nose Brockway roll off truck with a 6-71 and it blatted exactly like this one! Absolute BLISS, can’t get enough of it! I dug that truck so much, and it is absolutely true that these are rge greatest diesels in world history-because they ARE! (And THE instead of rge above-oops!) The 2 stroke diesel is the ideal, correct principle for a diesel. Also the most efficient and proven so. This inlime 6 cylinder Clark cycle 2 stroke diesel is based on a 1912-1914 Elmore car engine after GM bought them out. Even as a gasoline engine they were VERY efficient! The first application of the Clark cycle was in the “Wolverine” gasoline marine engine around 1899! It kicked the crap-ola 4 stroke cycle to the curb with ease and was very good ob fuel thanks to a uni-flow scavenging set up with a single pretty big valve in the head and exhaust ports in the cylinder, so the opposite of the Detroit. Either way will work. Even simple loop scavenged 2 stroke engines are fantastic. These wonderful GM Detroit diesels, along with the mid size Cleveland Diesels, and the big EMD locomotive engines also in the best in the world status like the Detroit line are all awesome! Detroit diesel also had the 2-51 and 4-51 engines that had no valves and were loop scavenged like a gasoline 2 stroke but using a roots blower like this Clark cycle 6-71, but working vas a Day cycle 2 stroke which the gas engines are as well. I have 2 rare valveless Day cycle loop scavenged engines and hope to find an even rarer 2-51 2 cylinder! Awesome stuff! I am glad these absolutely awesome 2 stroke diesels are now getting the recognition and appreciation they so much deserve! They will never be beat, unless 2 stroke diesels come back. They will! Cheers all! 😋🤤
Fer Serrano and still learning how to start the engine sitting making engine sounds and acting as if you were driving don't count plus you eat to much 💩💩💩💩💩💩💩💩💩💩
Miss that sound, must have been 20 plus years since. One of our aircraft tow mules had this engine, started every day, no matter the temp in Edmonton AB
A truck that only real men could drive! You have to know how to shift an 18spd road ranger gear box. Detroit diesel sounds good, they sound like nothing else out there.
Yes, but my point was unlike today,s trucks with push button shift, might as call it an semi-auto gear box, older trucks you had to know to shift gears PROPERLY, mess it up and you pull over and start from scratch! I know, why, it happened to me once with many cars behind me!
Replace the thermostat for quicker warmup. Ether for cold start. I have a 6-71 in a '41 Kenworth fire engine. No bulges in the exhaust tubing. Best equipment ever invented for turning diesel fuel into smoke and noise!
Instead of the little 25 amp maintenance charger, you need a 250+ amp start booster to keep from melting the batteries. When the voltage drops the amps increase to balance the ohms equation.
Multi-fuel was not long for this world. It was just a super high compression diesel with low output, designed on a engine from the 1930's. I am glad it happened and love the engine, but calling it anything but a turd was just a lie. They were reliable, would drink anything, but were inefficient and so lacking in torque and HP. My M35 is a love of mine... but if that head gasket goes again in the next decade I am ripping that engine out and putting in a 4-71.
Have to agree with Matthew shot of ether and a block heater would save you lots of wear and tear on your starter and wiring....Once you got her running she sounded good ....Was a cold natured SOB....We had a 76 GMC 671 Detroit 238 HP 10 spd tandem axle with a 24ft rollback body....Shifted that old girl without the clutch pedal......Was a good old truck....Slobbered a little oil.....Dont lug em hammer down....Keep an eye on the oil and the coolant...Will treat you good.....Your old Ford talks to ya.....Take Care Good Luck and have fun.....
You need a block heater, an oil heater or a weber and a bag of kingsford briquets strategically placed will work in a pinch. My Dad fired up the KW wrecker 12v71 tt many a time in neg temps with a portable weber.
yea, we had nothing on hand and a failing battery. but with the new batteries it doesn't need any help, fired it up just yesterday about 15 degrees, took like 5 seconds and it came to life
yea, been there many times, an old battery, a cold snap and you're going nowhere. Well, it's low 40's right now and I know tomorrow morning my battery will be turning my pickup engine over in slow motion if it dips below 0. The wrecker needs batteries but I cant afford 4 batteries right now my battery charger/booster gets the job done and once started the detroit loves to idle for hours and hours. I don't operate commercially I kinda provide a community service for a fair price and if I have the free time. I winched out 2 stumps last weekend for $100 lol speaking of batteries... Always made me wonder how the Astronauts drove that battery powered moon buggy around in 71 in minus 200+ with batteries of the time? Thinking about that will give you a headache lol cheers
Our 671 just a sniff of either is all ours ever needs and it sits out all winter !! Ah that famous lope..lol We have a Ford 9000 with a GM 671 with a Spicer 16 speed that is a Gardner Denver 1000 Well Drilling Rig great app !!
love the old 2-strokes but the only thing with them is every 500,000 miles they must have an inframe rebuild done and every 1,000,000 miles they must be pulled out and completely gone through and rebuilt used to do them all the time in my 1 man shop took about 4-5 days to rebuild a straight block about 5-6 days for a v-block
i am posting a video today (2/21/17), and all it needed was good batteries, it starts just off of compression fine. around 30 degrees in the new video.
ether will dry out the bores over time (not as lubricating as diesel) if you keep using it and will start scoring the liners over the years, works when you need it though
Hey Guys.... Cool Truck engine there. Love Detroit 6-71. You with a camera... You must be Danish what a can her Maybe? Inn start with 40-44 like you say "Kom Så" At Danish... Maybe a take wrong. Cool Detroit Diesel Love it
One thing I am hoping that we build in St. Louis is a truck museum. I sure would love to see those instead of stupid crack houses. I think gangs are stupid, but semis with Detroit diesels are awesome.
gotta love fuller. Once you learn it u will never forget I can tell it too :). I seriously hate all other manuals, but atleast in here where I live its pretty rare to have manuals anymore. I-shift or opticruise.
I had a lot of 238 Detroit’s the best and easiest way to crank them I squirt gasoline on the air cleaner about a 1/4 cup . It will crank right up and starting fluid is hard on the engine head and head gasket.
the 6.7 is the first diesel I know of that was completely made by ford and its pretty good. the 6.0 and 6.4s are Navistar engines and are pretty shitty boat anchors
Would you believe the 6L71 Detroit Diesel engines were in Garbage trucks like the White GMC Xpeditor Maxon Front loader and Ez pack Rear Loader garbage truck
That was awesome video. Driving those are fun period. The question is ? Is driving a screaming Detroit Diesel better then having sex with a whining-B---H , that is the question? . By the way to cold start a diesel take of the air intake tube between the engine or right at the engine and use a little WD-40 as a starter fluid they usually go every time and for down shifting remember speed and RPM to make a shift, you got to know those points, have a great day😊.
Did you know that there are a lot more accidents today involving 18 wheelers than there was 30 years ago. I think part of the reason is because modern semis are too damn quiet. When people heard a screaming Detroit diesel coming down the road, they got the hell out of the way!
Hmmm maybe couse today there is lot lot more cars on the roads?
stupid four wheelers are at fault
Sadly, the loudest vehicles on the planet, still do not make up for the stupidity of those that rather text on their phones, or search for something while they are supposed to be driving. I have a friend that had a loud motorcycle, and it did not stop the stupid ass college girl from pulling out in front of him when she went to make a left turn at a light. Loud pipes only save lives, when people are smart enough to pay attention to what is around them.
Me han contado que los motores diésel Cummins y Detroit son guerreros para toda la vida
Yes, as that noise tells them a *Compression-ignition engine is on the loose, and it has a full load of soot in it!*
I remember driving a 6-71 for a week or so while I was waiting for my highway truck to come home after my vacation ended. The boss was getting phone calls complaining about the smoke the truck put out. There was smoke laying down on the road 3-4 truck lengths behind me. But it was a glorious noise.
Love the sound of the 6-71's.. Can hear them coming a mile away..;-) Their engines sound like they are doing 100 mile an hour. when in fact they are just cruisin' at 40 mph..lol
8-71’s sound far better
Mine does
I don't care what anyone says, Detroit diesels sound better than any other diesel engine in the world.
Eric Cummings well you should clean the shit out of your ears
Eric Cummings True dat i guess but i find the Commer TS3s sound to be very appealing as well
There not worth a damn though. At least not the newer ones. The heads are constantly cracking under pressure
Big Meat...... Which Detroits are you referring to when you say "not the Newer ones".... "The heads are constantly cracking under pressure".
2Stroke Diesel Power think it’s 07 and newer. Truck kept losing water, a man was at the parts store one day and told me the newer Detroit’s were notorious for blowing head gaskets. Took it to the local mechanic which found three cracks in the head which cost me 18 stacks. Still haven’t got it fixed every time I get it back the bitch starts leaking water from somewhere different. Barely got 500k on it. But I got a 94 Pete with a CAT damn near tuned wide ass open with well over a million miles and it runs with no problems and hauls ass.
My wife rolls her eyes at me every time she catches me watching diesel cold start videos. Thinks I’m batshit crazy for getting enjoyment out of them
she doesn't understand :3
I used to work at the city bus company,,yes those Detroit's are a coldblooded --itch to start,,but they sound lovely,,especially driving round the city all day,,,beats listening to all the loudmouth passengers LMAO....nice truck and video
Charcoal briquettes on a metal garbage can lid slid under the front axle. Add a can of ether and 4 spanking new 31-series deep cycles you might get it started today.
The trick is to just not turn it off after Halloween. Just let it glug-glug-glug idle every night in the back of the yard.
They really aren't when the rack is run right, and they are tight. Plus, they recirculate enough fuel that it wont gel once its running.
As long as the fuel is liquid, we never had trouble starting them.
These trucks defines what trucking is they sound good fine tuned
It's been a while since an 11 minute video got 11 minutes of my attention without skipping
Love those old Detroits. The first tractor I had assigned to me was a GMC Brigadier with the old 6V-71.
Well done for a couple of young bucks. Ain't gonna give no advice since you'll figure it out for yourself. Thanks for sharing and best of luck.
Figuring stuff out yourself is more fun too
@@kylekenan2321 not always
The best sounding diesels....period!! Shame they don't make these beauties anymore. I used to love hearing them in the old metro buses back when I was a kid. Personally, I think the 671 is the best sounding of the old Detroit Diesel 2 strokes. Even better than the 8V92. 👌
I like a straight pipe 6v92 🤨👌
Need some real hot air down her blowers. I used to make a WD40 flame thrower to get Detroit started in the winter. LOL
Lmao thats a pretty good idea 😂 or carb cleaner!
Aiim it right down the intake!
And they need a real battery charger…..personally I’ve hooked buzzboxes up to the battery before and cranked em all they way up
Music to my ears , love them Detroit Diesels especially the 6-71"s rev that baby they really start talking at high rpm.
I rebuilt a few of those 238 and 671's. Balancing that rack was tricky. And you had to have a piece of plywood to throw over the intact on first startup in case it ran away. Cool Sound. Nothing like a 2 cycle diesel.
Good old leaky green 2 stroke. Never disappoints.
Snug up d bolts eh, no Leakey no more
That SOUND ,.....that F@#$ING SOUND ........I started driving in 1982 (13 year career) ,...the company I drove for had a small fleet of these and I ROARED up and down the west coast of Florida..........that sound will give you nightmares!!!
That's sweet. I drove a few of them over the years. I have an '87 Hahn Fire Engine with a 6-71 auto trans and Jake. Love running through town wide open doing 30 mph!
i got a 8v92 and starts half a crank and i got the truck out of a junk yard motors not rebuilt and had water in the oil pan and put clean oil and diesel and it the best running motor i have right now
i bet that thing sounds AMAZING!
Video of her running?
Yes Screamin Jimmies are pretty neat. They seem to sing like no other engine does.
Especially high tones
I remember the crown buses had the 6L71 version in stick and automatic they stopped using them here in California I miss the sound
EPA/ CARB Killed them low RPMs they smoked wound up and good injectors were clean at high speeds .
Jhon Siders darn epa and carb communists they are I like the Detroit 2 stroke they were boss
And VERY simple to work on if they got fuel and air had to run unless some thing broke internally .
Steven Corbett I drove a 5 speed crown school bus back in1999 with the Detroit
Greg Holmes i miss those old school buses and their 5/6 speeds here in California.. i want one so bad to do a camper conversion
I can listen to a Detroit diesel run all day. Your's sounds great 👍
30 plus years ago we had these in M113s we were just young then and ran them full throttle always time has really flew.
When all else won’t start mechanical diesels will.
Yes sir‼
They don’t call it the screaming jimmy for nothing
Learn to shift the auxiliary. That's what the button on the stick is for. Then there won't be such a lag between gears and it'll sound even sweeter with the quick shifts.
yes we (he) knows that now, but it is a 4 speed with a 4 speed air shifted aux. so he just stuck it in 3 aux and drove unless on the highway he would then go to 4th aux. But now we know that you shift with aux 1-4 and then shift to second then aux 1-4. and so on and so forth. this is information that we looked up, so perhaps it is wrong. but it does sound easier, especially with a non synchronous transmission.
"non synchronous transmission"-Yes, that's why you don't use the clutch to shift! Lots of vids on RUclips showing how.
This Guy's Stuff and Stuff 1-1 1-2 1-3 2-2 2-3 2-4 3-2 3-3 3-4 etc
@celtic barbarian hypothetical
he shifted that pretty well for a detroit and a cold transmission. Lots of people rev the hell out of them and jam it into the next gear who aren't used to them.
Uh.... Ok.... We can tell you havent been around Detroit's long enough to know anything
@@robby844 Sure mate
@@jetstream454 ah you're an uneducated fuck too?
My thoughts he cant shift for shit if he hauled logs he'd be fucked
Slam your fingers in the door, and run it like you're pi$$ed off. Empty is much easier than with 40 ton of coal.
Detroits do hate the cold...
Not really.
I was running 100% veggie oil in my 6V92 in 20f.
@@EvenStarLoveAnanda thats why i love diesels.
A great survival engine.
Can run on just about anything.
Drove an LN8000 tandem axle tankwagon for many years. Miss that rattle of the Detroit.... Thankd.
Ohhh so THAT'S double clutching. Cool man, cool! I need one asap!
post adapter is wrong one--there is a deeper one for 31-series battery that comes all the way down against the lead on the battery--making the threaded rod part of the circuit creates resistance and therefore heat.--But love these old two-stroke detroits!!!!
Love the part where he says just go full throttle. Till it starts, all these old two-strokes were full throttle, it's in how the governor works.
yeah i know that now, didn't then though. And the battery came with the truck and was already messed up
@0:46 Adding to the problem of overheating cables ,
Is the cable terminal is not completely down onto the battery terminal.
Poor connection makes it heat up
it was a threaded terminal, old too. it was melting on the inside of the terminal.
I was wondering if anyone was going to bring up the issue of contact resistance. Clean, tight connections over as much surface area as possible is the key to low resistance.
on the out side it wouldn't matter, they were threaded terminals and whom ever had it before us over tightened them and stripped the threads. it was melting on the inside, there probably wasn't much connection at all, hence the new battery we got made it fire up so quickly.
I go to a place to get topsoil for my moms garden and they have this machine that makes mulch from logs and debris and such they run 3 shifts 7 days a week, and that machine is powered by a 6-71 Detroit just like you got and it is just on the governor 24/7 the entire time I’m waiting to get loaded the scream of that Detroit is in the background. I love that sound so much. God knows how many hours and how many rebuilds are on that motor it’s just keeps chugging
Great sound, The Lord didn't break your glasses
Sounds bad ass, i have a straight piped 12.7 Detroit and i love it.. But nothing beats that old Detroit sound.
2 strokes are the best!
I'd have to say a cummins will always sound better than a Detroit
My boss runs all 12.7 Detroit’s in his fleet. All his trucks are pre 2000 mainly Freightliner. They do run well. Parts are much cheaper than Cat
That good old sound from a Detroit 6-71
Now that's one Detroit howl - we used to get a few over here in Bedford TM's - what a sound
A lot of growl and bark--fits the definition of a Detroit Diesel. "A mechanical device that converts diesel fuel into noise" haha--drove a lot of them though, and this guy did shift well, at least at the first.
It sounds super sweet! We had this engine powering Dublin city’s buses for years. I loved that whine and smell, man they were Smokey units
I had a 671 in a GMC truck ran away due to bad blower seals pulled the emergency shut off on the dashboard and the whole handle and wire pulled right out and came disconnected had to hurry up open the hood and closed the emergency flap on the blower good times good Motors
sounds hectic, bet thats a fun story to tell
Sounds like Seth Rogan and James Franco starting a rig together! Haha
Brandon p hahaha it really does to
Now I can't watch this without picturing them together in there.
It Sound Like Ford Truck
@@kylekenan2321 87 MD
Wow that's a cool truck,we don't have those in uk and we don't have this kind of space where you can go for a ride like that,cheers for sharing guys
Dad drove them for years in the 60s and early 70s.
FYI the trick to getting an old Detroit 2 stroke to start in the cold is short crank followed by a pause and repeat until it starts. This gives the combustion chamber a chance to heat up. Extended crank just melts things. Also not a good idea to use starting fluid. The cylinders are full of unburned fuel as the injectors inject more and more fuel hence the white smoke coming from the stack. The starting fluid will ignite while the Piston is on it's compression stroke before reaching TDC that ignites the unburned fuel in the cylinder forcing the crankshaft backwards. If this explosion is big enough you will end up with bent rods. Seen it many times you might get lucky a few times but eventually it's going to hurt.
Я бы попробовал поджечь газету во впускном коллекторе.
Will always prefer DD over Cummins anyday
A freaking man!! Cummins suck ass! Detroit's are the best!!😎👍🇺🇸
should hear my uncles late 70s excavator its got the 12V71 when he works with that thing holy shit its loud them drotts are built like tanks
You could always try heel and toeing your downshifts, or use your left foot on the brake and go clutchless (depends on the pedal placement). Thanks for a great video. I enjoyed driving my Sterling with a DD14 and 18spd road ranger
Yeah that would be a nice daily-driver. Looks tons of fun to drive.
and it surprisingly gets around 13 mpg, so it's either a 460 ford or this beauty
I hauled pulpwood in the late 60's and 70's with a 6-71, double stick 5/4 tran. You only use the clutch to get going and when you stop. Once your moving you don't use the clutch to shift. Fun truck to drive, pedal to the medal and keep pulling gears. Bang your head when getting in it and drive it like you stoled it.
Every guy with a Supra wished their shit sounded like this. Such a beautiful tune.
love that detroit diesel sound never get sick of it such a addiction
SOOOOOO GOOD!!! 🤤🤤🤤😋😋😋👍🏻🤘 we had a ‘73 short nose Brockway roll off truck with a 6-71 and it blatted exactly like this one! Absolute BLISS, can’t get enough of it! I dug that truck so much, and it is absolutely true that these are rge greatest diesels in world history-because they ARE! (And THE instead of rge above-oops!) The 2 stroke diesel is the ideal, correct principle for a diesel. Also the most efficient and proven so. This inlime 6 cylinder Clark cycle 2 stroke diesel is based on a 1912-1914 Elmore car engine after GM bought them out. Even as a gasoline engine they were VERY efficient! The first application of the Clark cycle was in the “Wolverine” gasoline marine engine around 1899! It kicked the crap-ola 4 stroke cycle to the curb with ease and was very good ob fuel thanks to a uni-flow scavenging set up with a single pretty big valve in the head and exhaust ports in the cylinder, so the opposite of the Detroit. Either way will work. Even simple loop scavenged 2 stroke engines are fantastic. These wonderful GM Detroit diesels, along with the mid size Cleveland Diesels, and the big EMD locomotive engines also in the best in the world status like the Detroit line are all awesome! Detroit diesel also had the 2-51 and 4-51 engines that had no valves and were loop scavenged like a gasoline 2 stroke but using a roots blower like this Clark cycle 6-71, but working vas a Day cycle 2 stroke which the gas engines are as well. I have 2 rare valveless Day cycle loop scavenged engines and hope to find an even rarer 2-51 2 cylinder! Awesome stuff! I am glad these absolutely awesome 2 stroke diesels are now getting the recognition and appreciation they so much deserve! They will never be beat, unless 2 stroke diesels come back. They will! Cheers all! 😋🤤
ooohhh¡¡¡¡ that sound is so beatiful, I learned to drive whit that engine.
thanks for share¡¡¡
Fer Serrano and still learning how to start the engine sitting making engine sounds and acting as if you were driving don't count plus you eat to much 💩💩💩💩💩💩💩💩💩💩
Miss that sound, must have been 20 plus years since. One of our aircraft tow mules had this engine, started every day, no matter the temp in Edmonton AB
Detroit BABY!!!!!!!!!!!!
A truck that only real men could drive! You have to know how to shift an 18spd road ranger gear box.
Detroit diesel sounds good, they sound like nothing else out there.
it's actually a 16 speed, a 4-4 trans, but one of them is air shifted, and the air shifting doesn't work so well anymore.
Yes, but my point was unlike today,s trucks with push button shift, might as call it an semi-auto gear box, older trucks you had to know to shift gears PROPERLY, mess it up and you pull over and start from scratch! I know, why, it happened to me once with many cars behind me!
Replace the thermostat for quicker warmup. Ether for cold start. I have a 6-71 in a '41 Kenworth fire engine. No bulges in the exhaust tubing. Best equipment ever invented for turning diesel fuel into smoke and noise!
Great video, awesome sound, can't beat that Detroit diesel sound.
4 strokes and your playin with it! Double clutching like a boss. LOVE THE VID!
Those old Detroits sounded so good
Used to drive one of these 40 years ago. If it had had a radio, you couldn't have heard it. The
thing sounded so cool it was all the noise you needed.
First heard this gorgeous sound many years ago in the old TV series "Cannonball " !!
Listening to this and jake brakes is heaven...Thank-you for this.
One thing I don't like doing is feeding a Detroit starting fluid
Instead of the little 25 amp maintenance charger, you need a 250+ amp start booster to keep from melting the batteries. When the voltage drops the amps increase to balance the ohms equation.
yeah but there is a problem...they cost money haha
Nice M35 in the background. Love the 71 series and love the LDT 465
Multi-fuel is a technology that i wish had progressed, it's to bad the hyper-cycle engines died off.
Multi-fuel was not long for this world. It was just a super high compression diesel with low output, designed on a engine from the 1930's. I am glad it happened and love the engine, but calling it anything but a turd was just a lie. They were reliable, would drink anything, but were inefficient and so lacking in torque and HP. My M35 is a love of mine... but if that head gasket goes again in the next decade I am ripping that engine out and putting in a 4-71.
Man these 2 stroke Detroit's sound pretty sporty lmao
Have to agree with Matthew shot of ether and a block heater would save you lots of wear and tear on your starter and wiring....Once you got her running she sounded good ....Was a cold natured SOB....We had a 76 GMC 671 Detroit 238 HP 10 spd tandem axle with a 24ft rollback body....Shifted that old girl without the clutch pedal......Was a good old truck....Slobbered a little oil.....Dont lug em hammer down....Keep an eye on the oil and the coolant...Will treat you good.....Your old Ford talks to ya.....Take Care Good Luck and have fun.....
diastatedave don't lug em first thing I was taught excellent advice
I owned a 238 Detroit in a 1966 IH was the sweetest sounding engine I ever owned.
beautiful country !!
thanks for the memories Budd !
First diesel engine I ever laid a wrench to, God I love them!
Drove a 6N-71 for several years with a 10 speed behind it. Gutless wonder.
You need a block heater, an oil heater or a weber and a bag of kingsford briquets strategically placed will work in a pinch. My Dad fired up the KW wrecker 12v71 tt many a time in neg temps with a portable weber.
yea, we had nothing on hand and a failing battery. but with the new batteries it doesn't need any help, fired it up just yesterday about 15 degrees, took like 5 seconds and it came to life
yea, been there many times, an old battery, a cold snap and you're going nowhere.
Well, it's low 40's right now and I know tomorrow morning my battery will be turning my pickup engine over in slow motion if it dips below 0. The wrecker needs batteries but I cant afford 4 batteries right now my battery charger/booster gets the job done and once started the detroit loves to idle for hours and hours. I don't operate commercially I kinda provide a community service for a fair price and if I have the free time. I winched out 2 stumps last weekend for $100 lol
speaking of batteries...
Always made me wonder how the Astronauts drove that battery powered moon buggy around in 71 in minus 200+ with batteries of the time? Thinking about that will give you a headache lol
cheers
Our 671 just a sniff of either is all ours ever needs and it sits out all winter !! Ah that famous lope..lol We have a Ford 9000 with a GM 671 with a Spicer 16 speed that is a Gardner Denver 1000 Well Drilling Rig great app !!
love the old 2-strokes but the only thing with them is every 500,000 miles they must have an inframe rebuild done and every 1,000,000 miles they must be pulled out and completely gone through and rebuilt used to do them all the time in my 1 man shop took about 4-5 days to rebuild a straight block about 5-6 days for a v-block
yea, but it still lasts longer than a 9 littler international
This Guy's Stuff and Stuff that is very true
keep that up and you will be under it changing starters, a quick shot of ether or a block heater is what you need
i am posting a video today (2/21/17), and all it needed was good batteries, it starts just off of compression fine. around 30 degrees in the new video.
ether will dry out the bores over time (not as lubricating as diesel) if you keep using it and will start scoring the liners over the years, works when you need it though
NYC kiukiij mujy thhynhnyuj,Yi Ki Ki I,iii,,uni.
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Matthew Jones
yoyigigyyui t dry hunk lily bah n Yu yjumj mn h just just. U hu hum kmuuug u k
Matthew Jones shot of ether to kill it?
Yeah ! let's put a block heater & keep it plugged in,, a truck that hasn't been started in forever...
Love the sound of an old detroit
I learned on a 318 Detroit with a 13 speed. However, I loved driving an old 6V-92 with a 9 speed.
Hey Guys.... Cool Truck engine there. Love Detroit 6-71. You with a camera... You must be Danish what a can her Maybe? Inn start with 40-44 like you say "Kom Så" At Danish... Maybe a take wrong. Cool Detroit Diesel Love it
haha nope im not Danish
i think i had said "uh stop"
That's gotta be the most badass diesel engine I've ever heard 😂🇺🇸
Louder the better. Love the sound
A screaming Detroit sounds soooooooooooooo good!!!!!!!!!!
Always enjoyed starting a marine detroit with hydraulic starter !! Touch of the button - done !!!
The sweet sound of a detroit
This monster sounds great i luv these motors!
One thing I am hoping that we build in St. Louis is a truck museum. I sure would love to see those instead of stupid crack houses. I think gangs are stupid, but semis with Detroit diesels are awesome.
I love the sound of my 12 valve but Detroit diesels have that sound like no other.
Thank you, for double clutching correctly....
SeenOrHeard you don’t know what you are talking about
Hue Mungus like you knew everything about everything when you first started out.
That Detroit brought back some memories.
gotta love fuller. Once you learn it u will never forget I can tell it too :). I seriously hate all other manuals, but atleast in here where I live its pretty rare to have manuals anymore. I-shift or opticruise.
so sweet .. great engine .... i was driver a KW 76 BC Cummins 14spd .. I love Cummins but that engine ..is great .. .. cheers ..
I had a lot of 238 Detroit’s the best and easiest way to crank them I squirt gasoline on the air cleaner about a 1/4 cup . It will crank right up and starting fluid is hard on the engine head and head gasket.
Damn a general motors Detroit diesel in a Ford
That's no shit
SodiumH2O TheBurg at least not for big rigs
SodiumH2O TheBurg your not wrong.
They were used in a lot of other stuf too.
the 6.7 is the first diesel I know of that was completely made by ford and its pretty good. the 6.0 and 6.4s are Navistar engines and are pretty shitty boat anchors
GM 6-71. 6 cylinder in series. 2 exhaust valve / cylinder. In SU ( licenced ) JAAZ 206. 2 allied was engine of a tank in WW2.
im not sure if this 2 valves per cylinder or 4, i personally haven checked, i love these engines though
I know this engines. I am an engineer... I teached about this engines 41 years ago...
Great job on the video👍🏻
My great grandpa built a 78 ford L series to have a Detroit in it... I believe it had the 6v71
The correct batteries would make a world of difference
hence when it actually started
Would you believe the 6L71 Detroit Diesel engines were in Garbage trucks like the White GMC Xpeditor Maxon Front loader and Ez pack Rear Loader garbage truck
Thanks for that . Beautiful sound!
16 speed spicer, he is shifting good just need to air shift the splitter the auxiliary assembly, keep making good vids
thank you,
yeah the trany is tiered and really really does not like to air shift the aux, i kind of wish it was a twin stick.
That was awesome video. Driving those are fun period. The question is ? Is driving a screaming Detroit Diesel better then having sex with a whining-B---H , that is the question? . By the way to cold start a diesel take of the air intake tube between the engine or right at the engine and use a little WD-40 as a starter fluid they usually go every time and for down shifting remember speed and RPM to make a shift, you got to know those points, have a great day😊.
Really good shifting for a cold gear box
Thank God Detroit's are so loyal
Just like your German Shepherd