Best sounding engine detroit diesel 2 stroke 6-71 climbs a 25% grade. 1947 gm bus
2024 ж. 3 Ақп.
18 447 Рет қаралды
1947 gm pd-3751 bus with a detroit diesel 6-71 2 stroke diesel climbing the 25% grade hill. Awesome sounding detroit diesel
1947 gm pd-3751 bus with a detroit diesel 6-71 2 stroke diesel climbing the 25% grade hill. Awesome sounding detroit diesel
I drove a 671 in a fire truck for years. You never forget that sound.
Music. I used to fall asleep listening to a fleet of Euclid mining trucks, each with two 6 71's side by side, crawling out of the pit at a local iron mine.
Hopefully you weren't driving one of them at the time 😁
I drove the Euclid in my early days in the rock quarries and they sounded great and had plenty of power to haul rock.
Nothing sounds better than those old Detroit Diesel 2 strokes, especially the 6-71's!
Scott it has got to be the best symphony ever produced by a commercial vehicle I love it
When the old bus sounds more formidable and solid then any of contemporary racing engines 😀
I never knew your road was as steep as it is, but good golly Miss Molly, that 6-71 is like music to my ears. There is only one thing that beats it. It is the sound of an 8-71 in a Scenicruiser going up a grade with a full load of passengers at 60mph.
When I was a kid I would visit my uncle every summer and he was a log hauler and I rode in the truck with him numerous times. He had a Mack E9 V8 superliner with the twin stick quadraplex transmission that was probably turned up well over 700hp. I remember one trip we were on highway 108 climbing the Sonora Pass loaded and the sound coming from that V8 was simply amazing and to this day I haven't heard anything close to it.
Every night around 10-11pm I would listen to a Western Maryland coal train coming from Pikesville to Owings Mills Md up a grade.The locos were EMD 2 stroke Detroits.This was 1955-65.Unforgettable sounds
I remember that sound. Step dad had a small trucking company with all GMÇ cracker box cab overs with 6 cylinder Detroit's. I was the shops parts cleaner on weekends when trucks were in for maintenance or repair work. Learned how easy they were to disassemble and put back together. Haven't been around them in over 50 yrs. I didn't go into the trucking industrie like some of my siblings did. Still love that sound.
Lenny’s exhaust note is a symphony of perfection! What a hum!❤😎👍
Thanks for that. Old school power. The old masters sure knew how to build. Thanks to you for keeping them running.
That fresh paint job on Lenny looks fantastic.
I remember that sound when I was a kid. The fire station up the road a mile or so up the road. We could hear the trucks going out on a call late at nigh when it was quite. We're talking the early 60's! Great sound.
I remember when I was young and to used to get goosebumps hearing the sound of those engines especially when they shifted gears . What a sound 😊
Nothing like the awesome sound of a 6/71 Detroit Diesel. Thanks for sharing, Scott!
The old beast cracks along nicely & it dont even smoke
Sure do miss the sound of those Detroits Thanks(no thanks) EPA😢 Thank you Scott for keeping these beautiful Detroits running!
Had one in a 38 RB face shovel years ago, superb engine.. And that sound!!!
That sound is in fact music to me also. So many harmonics, I just have always been fascinated by that sound!
That was a beautiful sound! Thank you for bringing back memories.
My first assigned concrete truck had a Detroit in it mounted in a '79 Ford cab with an eight yard smith mixer. The engine was so clapped out when I was assigned to it that if you had to stop in the bottom of a hill then you'd never get it up to speed. The starter would quit working once the engine was up to operating temperature and if you stalled it the engine would start running backwards. And yes,it made that distinct sound.
A GM crackerbox with a big Detroit would blast down the highway past my work in 1972. THAT THING WAS SCREAMING! Great memories
God bless Lenny for making it up the grade
Sounds so sweet. Its like 'oh, honey, Im home'
Lenny sure is a beautiful bus!
YES! loved that sound! Thanks for making that video.
A friend of mine and I took the muffler off a 671 in a cracker box GMC,put the muffler back on after a 5 mile test,later drove a 8v71 turbo charged with straight pipes could handle that,awesome sound,wish I had known as much about those ole two strokes then as I've learned watching this channel
Lenny is sounding mighty fine. He's ready to run with the "big dogs"!
Awesome sound! It reminds me of the times I rode the Greyhound. More 60's & 70's era
I bet Phil tuned in for this post. Sounds so good.
Nothing perrrr like the 71series😊
Love the sound of that motor.
Nothing like those 6-71 DDs. Super sound. Remember that sound well from when I was a kid. All our local buses had them. 8-71s aren't too shabby either.
I remember that sound from many years ago I recognize it mid 70s early 80s
Damn...what hill..sounds really great. Lenny's lookin good too. ✌️❤️😁
Lenny looks and sounds great.
Great sound! Worked around a lot of logging equipment in Montana running Detroits.
You did a great job on Lennie. Great vintage bus.👍🏻👍🏻👍🏻
I started building a hot rod semi to use as a totorhome. I grew up early in trucks before dad started driving busses. We still trucked and had a fleet of busses too. But i remembered a sound from being young but i had forgotten what it was. I set out to find that sound. I then searched for a 12v71 for that project but decided to go to an 8V71 after realizing the mileage difference per mile! That was about 5 years ago. Now i have 3 DDs. That 8V. A 6v92. And my 6-71 in my Flxible bus! Its a sound nothing else can recreate!
Holy shirt. That sounds amazing!!!!
The GREATEST engine that man has ever put diesel in
HI guys from Victoria Australia 🇦🇺
Man Lenny sounds great. Probably one of the best sounding 6-71’s in active services. Nice to see you do an informational video like this. Does good for a lot of the newer viewers.
Lenny is just wonderful now - I’m so pleased you were able to make him so nice
That sound is what lead me to you years ago when you were traveling with tools.
What a great sounding engine!!
I grinned the whole time! That's music to my ears!! Thanks Scott!
I have four of the Detroit two strokes to get my fix. A 6-71, an 8V71 in my bus, an 8V92T at 450 HP in my big snow blower and a spare 8V71T at 405HP out of a self propelled Howitzer. (spare engine for the bus)
I love this bus!
In the late 70's I drove a college choir around the southeast US in a 4104. One of my memorable trips involved a mountain tunnel (I think in WV, not sure). As I approached the tunnel entrance, I pulled back my little driver's window and slowed down to about idle speed in second gear and slowly increased the speed as I would through the gears. Music to my ears!
Always loved that throaty Detroit Diesel sound...
What a sweet sounding rig!!
Sounds Great ! Love It !
He makes it up!!
love that sound Detroit sound great job
Thanks for the video.
The sound of perfection!
Lenny sounds great! It was sort of a duh to me moment when I realized a 2 stroke sounded like it was reving twice as fast as it should. . .
Sweet sweet music! Golden oldie!
Deep Growl , music to the Ears 😎, thank You Scott for sharing that👍🏼👍🏼.
keep the clips coming
Lenny is a well Tuned running machine. Thanks for posting video. Music to my ears
Bravo! Great vid, perfect camera location for that wonderful engine.
And that ladies & gentlemen is how a properly tuned 6-71 sounds! #scottknowsdetroits
Lenny is a beast and sounds great.
Beautiful sound! I would be proud to own a bus like that…
Lenny looks and sounds beautiful!
always love hearing the sound of a screamin jummy climbing a long hill
Lenny sounds great!
Beast mode 👍
Awesome sound 😎
Nothin' like the sound of a "buzzin' haffa dozen"!
Sounds sweet
Lots of power there
It does sound great. Would you consider recording every engine style 6V and 8V 71's and 92's and then make a montage of all-in-one video? Thanks.
Nothing else sounds better. So good to see Lenny stretching his legs.
Lenny has a throaty deep roar. Look out , here he I come! I would love to hear Lenny going through I-77 on the West Virginia turnpike.
Those detroits sing a pretty tune
The bus is clearly in great shape. I will never understand the 20th century person's fascination with the noise of propulsion, however. The silence of the modern EV is bliss. The closer an ICE comes to that standard, the better, like the v8 boats of the 60's and 70's.
Ah, the sound of music. Once, on a trip from Carson City to Reno, in the 70’s, my 6-71 went around 2 Eagle 01 models. They were in second gear climbing Lakeview Hill. I had a 4509 x-Key System bus that was at least 10 years older. If you pay attention to the maintenance, they can last forever. (Except in California, due to rule making)
Surround sound engaged! Sounds great to me.
We had a old Terex haul truck that had a 12v71 and it was loud but sounded great hauling sand and rock for a asphalt plant
Yeah. Definitely a bad ass sounding 2 stroke!
Love it!
Love it..
Lenney sounds good. Looks like you got a new camera mount for very cool video angles. That’ll give you some good looking shots.
So cool
Love it.
Didn't even sound like it was working that hard, like it could outrun the newer stuff 👍
As a little kid in New Zealand i knew the 2 stroke diesel sounds from a local limestone quarry who had a fleet of english commer TS3 powered trucks . For a tiny engine,they produced a lot of power . Google the TS3 for a look at a fascinating powerplant 😊
Love it
How is Lennys interior fit out coming along. He certainly is beautiful now that he's sporting a new paint job he's gotta be one of the best silversides around.
When I hear music like Lenny produces, I produces a big wide grin... (just can't help it!)
It is a sound of the past but like a 6 cylinder Jag when you hear it if you know you know.
SCREAMER!
Brilliant sound ! 671 Helped win the war back in the day , very popular , such was demand you couldn't even buy one privately you had to be millarty or government office , really top design ahead of it's time , only immisions being multifuel killed the two strokes,
Sure miss hearing those motors
Sounds great Scott :) It's been a while since the video/s where you talked about & demonstrated it but does Lenny still have the propane boost modification?
Have you considered some kind of timing system from the traffic signal to some point over the crest of the hill? Perhaps even tying it into a trail camera to gets photos as the vehicles begin their run. I'm not as good at details on this sort of thing as you are but the results would be interesting.
❤