Conversion motors! They convert diesel into noise.
@frederickclause2694
3 жыл бұрын
that's what Detroit diesel does best. It's easy to pick out semi's with Detroit power
@crunchycrispybacon
3 жыл бұрын
Stupid.
@FriggOff361
3 жыл бұрын
Lmao i got a brand new star car last year Dd13. i call it the furnace, Converts diesel to heat and noise
@georgebordi8986
3 жыл бұрын
@@crunchycrispybacon are you looking in the mirror again?
@blewyd
3 жыл бұрын
@@georgebordi8986 haha good one!
@douglasjohnson8820
3 жыл бұрын
Had Detroit's on my boat in Nam. THEY NEVER FAILED US ON ANY OF THE MANY RIVER RUNS WE MADE.
@LedzeppelinDogsGuns
2 жыл бұрын
thanks for your serice!
@mcimc558
2 жыл бұрын
Thank you for your service SIR 💪💪🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸🙏🙏God Bless
@veteransdieselgarage7607
2 жыл бұрын
Thanks for service, my grandfather always said the 2strokes hit the beach on Normandy as grey marines, powered us through wwII and built the interstate system in North America
@lincolnmech
2 жыл бұрын
Believe they were on the PBRs.. and a few other watercraft in that era.. thank you for your service
@kimnielsenthewordyvikingett159
2 жыл бұрын
Would that be a PBR sweetheart?????
@agliem1
3 жыл бұрын
Those Detroits have such a unique sound. You can tell a Detroit from a mile away.
@cooperinderman6246
3 жыл бұрын
Sound like a air sucking Yamaha
@DieLange-nl
3 жыл бұрын
It sounds like shit. More like a grinder.
@wreckerjonny6144
3 жыл бұрын
More like 8 miles if you lived where I did growing up. My dad drove an old gmc back in the 70's we lived on a hill . My dad would travel mountain top road from work to home . I made sure I was outside.
@RealityIsTheNow
3 жыл бұрын
@@DieLange-nl They sound exactly as they should. Your ignorance is embarrassing.
@DieLange-nl
3 жыл бұрын
@@RealityIsTheNow Sorry, but here in Europe we are more used to refined engines.
@Z06ified
3 жыл бұрын
There’s diesels, then there’s Detroit Diesels. Pure music.
@protonium3275
26 күн бұрын
Always loved the 8v92’s as well.
@carolinawestern3875
Жыл бұрын
Oh boy, you can't mistake the sound of a Detroit! Back when I was trucking with my dad. One of the trucks he trained me on, had a 8V92. It was a 359 model Peterbilt, flat top. With the double sleeper. About a 83-84 model, with a 15Sp. Fuller O.D. which took getting used to. Because it had the upside down horse shoe pattern from 3rd-4th. and 13th-14th. In 15th gear, you were either lugging or flying!!
@paradiseroad6405
Жыл бұрын
...15th against the dash...goin' home gear...
@jwdickinson643
3 жыл бұрын
there’s nothing like the sound of twin diesels running full throttle....👍👍👍 thank you for taking us along!
@mrpotatochips8741
3 жыл бұрын
We use Detroit’s as turbine starters offshore. Once started, they idle for about 20 seconds & then it’s balls to the wall for them for the next 5 minutes. Beautiful noise from the motor & supercharger.
@shakira1784
3 жыл бұрын
Nothing like waking up to a cup of coffee and the smell of diesel fumes the rest of the day has to be awesome.
@agtronic
2 жыл бұрын
Sound engineers would refer to the effect as "phasing". It's a beautiful thing.
@user-cl8us2kl7b
8 ай бұрын
There is a better sound of that shit when gets fucking blown up with a ton of C4!!!! Kaboom the best sound I can imagine!
@robdog1245
3 жыл бұрын
We had an old Hatteras with 12v71’s in it. 3am, we’d wake the entire marina up when we’d leave the dock to go fish. Thing ran like a tank though, one of the most solid sport fishers I’ve ever been on. Now we have a Hatteras 56 with CAT C32’s. Lot quieter, but I miss the old Detroits.
@frumiousbandersnatch7064
24 күн бұрын
I love the smell of Diesel in the morning.
@robertborchert932
3 жыл бұрын
Spent years with Detroits in the fire service. My favorite sound is the 8v92.
@blewyd
3 жыл бұрын
Something so special and unique about the sound (music actually) of these two stroke diesels.
@mdv2043
3 жыл бұрын
That sound and smell when you first fire up a sportfish at about 4 in the morning is something that imprints on your brain. It has been burned into mine for over 50 yrs because I know iam going deep soon...
@chuckstewart7331
2 жыл бұрын
A lot of folks trash talk Detroit’s they are one of the most dependable, and easy to work on and maintain diesels ever built . If you were trained to work on one , you could work on almost anything they made.
@car2069
2 жыл бұрын
They sure are good at turning diesel into noise and leaking oil!
@jaysmith1408
6 ай бұрын
Depends on the year. Series 60 is a fantastic motor. Loved when those buses were on my run card. Now it’s just Daimler renaming Mercedes engines. I despise the DD15.
@buddythedog8049
3 жыл бұрын
That sound. One of a kind. Great for naps inside the salon.
@Loosewire123
3 жыл бұрын
Definitely makes for great naps!
@coastaldavhawthorne5891
3 жыл бұрын
Nothing smells better than a cold 71 in the morning at the marina. Use to love it back in the day. We ran 903’s in the Post.
@bigdaddeo76
3 жыл бұрын
The sound of 1 DD 2 stroke is great. But twins! It's an orchestra!
@clinthuntington2006
3 жыл бұрын
My grandad had a 42' Uniflite with twin 6-71s and this video just took me back 35 years. Such a sweet symphony when the two engines were running in synch. It was one of the last heavy hull boats Uniflite built and those jimmys could get that thing up on plane in pretty quick fashion.
@ADITADDICTS
3 жыл бұрын
One of the first bankout wagons I ran had a Detroit. I got in the cab and sat down, started the engine and the guy who owned it and who's rice we were harvesting look at me and loudly said "run it until it sounds like it's going to blow up....then give it some more!" I'll never forget that for as long as I live. That was a fun machine.
@juniorkhan9539
3 жыл бұрын
Those v8s are notorious and handsome the sound is soothing to the soul
@colesabs8852
Жыл бұрын
Fathers boat has 8v92 ti's and the sound they prpduce is just heavenly
@jasonrarick4649
3 жыл бұрын
when I was in diesel school way back when they had an 8-V 71 on its stand and did a dry fire. pop off instantly, but me at 19 reach and grab the throttle body and yank the crank. that things roared blew fire about 5 feet and 19 people left the room as the ground shook. I was in love
@JohnDeere318Guy
3 жыл бұрын
Nothing like the growl of an cold Detroit.
@car2069
3 жыл бұрын
Thanks! I love it.
@jadajada405
3 жыл бұрын
2 screaming jimmies awesome sir
@indridcold8433
3 жыл бұрын
She looks ready for a three hour cruise, a three hour cruise.
@be5575
3 жыл бұрын
Tour
@indridcold8433
3 жыл бұрын
@@be5575 Very, very, nice. I stand corrected. This gives me hope for society because people are still familiar with the great old comedies.
@bubbleobill267
3 жыл бұрын
As long as Ginger and Maryanne are onboard what more could you need?.
@PaulieB1965
3 жыл бұрын
Awesome. I spent the summer of ‘86 out in Montauk working for my uncle. He had a 42’ Bertram with twin 6V92TA’s. Loved hearing those things sing. Nothing like it
@Kapnwill
3 жыл бұрын
First boat I worked on and got my license on had 8V71 naturals. Love that sound.
@Tchristman100
3 жыл бұрын
Engines are inexcellent shape to not smoke much at cold start!
@Carla-tz7qw
Жыл бұрын
Detroit has fast throttle response. You barely mash the foot-feet and she's already screaming. Lol I love them
@henrystuckrath2701
3 жыл бұрын
Sound of Freedom!!!
@Tchristman100
3 жыл бұрын
I have a friend with a 44ft Pacifica that had twin 8V-71s that had a top speed of 19 knots, cruise 15. Through California re-engine program (since he did commercial 6 pack chartering) he qualified for re-engine the boat with twin 500hp Cummins QSC engines. He lost about a ton of weight and his fuel consumption went down to almost half. Remarkably at 7 knots, the two engines combined only burn 2.7 gallons per hour (that's as good as a single engine trawler). He can now cruise at 20 knots and tops at 25 knots.
@RJ1999x
3 жыл бұрын
2.7 gallons per hour? I'm calling bullshit
@Tchristman100
3 жыл бұрын
@@RJ1999x I saw the electronic gallon per hour readout-I was at the helm driving. Now at 23 knots it was 50 gallons per hour.
@RJ1999x
3 жыл бұрын
@@Tchristman100 Means nothing, it's either not calibrated or you read it wrong, 2 500 hp Cummins engines would burn 2 gallons an hour idling
@Tchristman100
3 жыл бұрын
@@RJ1999x the new electronic engines (with common rail fuel injection) are much more efficient than older mechanical injection. My big rig Caterpillar (14.6 liter) burns about 1 gallon an hour at idle. My friends boat has 8.3 liter ISC Cummins in then. Pull up a propeller curve of that engine and you’ll see the fuel burn
@Po_Buoy_Fresh
3 жыл бұрын
He might be saving fuel but it would probably take years of fuel savings to break even from the swap cost
@briggsquantum
3 жыл бұрын
If you were to shoot about a half second of ether into each intake silencer, you would save the batteries, save the starter motors, and prevent the knocking which is caused by the accumulation of liquid fuel on the tops of the pistons igniting as the engine finally starts. Of course you'll get all sorts of advice from the "experts" as to how ether will kill the engines, but used properly it doesn't. In the winter I used a quick shot to start a pair of 6-71N's in my boat ( I'm in Canada ) and in the summer it wasn't needed as the air temp went up. They were the advanced cam timing high compression engines, and they would blow a few seconds of light grey smoke on a cold start and nothing more after that. Very nice boat you have.
I agree! Theres a few other videos on my channel of the boat and some old generators that also sound like music!
@W1RMD
Жыл бұрын
@@car2069 Liked and subscribed. Thanks again for bringing the "dirty dozens" to life.
@Shadow-eo2pf
3 жыл бұрын
I randomly clicked on this video for the hell of it and I noticed that it said Weymouth Ma, and I was like “ oh no shit I know where that is!” Becasue I literally live on the cape haha
@kissme6344
3 жыл бұрын
sounds so peaceful, strong and reliable. so good
@ssgpentland8241
2 жыл бұрын
My uncles boat has twin 6V92TAs and was a little slow amd smokey on startup. He's since gotten electric coolant heaters installed to keep the engines somewhat warm and it made a huge difference. Nearly instant startups and no longer smokes out the rest of the harbor on cold mornings
@frankroy9423
Жыл бұрын
A good tuneup can fix this, did one for a Friend 23 years ago, and it still starts like a dream nomater what the temperature is.
@Z06ified
24 күн бұрын
But what fun is that?
@mattt198654321
Жыл бұрын
I was never a huge 8V fan until I heard two of them in unison... very nice sound
@darwonboyful
3 жыл бұрын
Geez you'd need to make sure you keep your batteries charged up! Those things take allot of turning over to start
@MilePost106
2 жыл бұрын
Miss the days of a cold start diesel right away in the morning. Delicious smell.
@ofenfrischeritaliener4441
3 жыл бұрын
This diesel engine sounds evil now I want one of these boats
@DerelictDieselDegenerates
3 жыл бұрын
Most identifiable engine sound out there. Idles just like the LAV with the 6v53T
@emd6456
3 жыл бұрын
Ahhh, Detroit Diesels, thank-you for the music!!!
@steveswallows8525
3 жыл бұрын
Nothing like a Detroit Diesel, except 2 of them.
@Tregaskis47
3 жыл бұрын
Much better suited to marine use than they ever were in heavy duty trucks....I ran a freightliner with a 350 8v71....made me a Cummins fan.
@ThebigShrimpy
25 күн бұрын
My uncle owns crew boats and supply boats in Texas. They service offshore platforms and ships. Had two 125ft fast crew boats. One had triple v12 cats (3412's) the other had triple Detroit 16v-149's. VERY distinct sounds from each one. FYI - the second set of numbers on Detroit's, is the individual cubic centimeters per cylinder. 8V-92 means V8 motor and each cylinder is 92 cubic centimeters.
@timheersma4708
2 ай бұрын
8V71 Detroits, when running right and warm, produce virtually no smoke. Worked with buses. Start them up, put on fast idle.
@owen33333
3 жыл бұрын
Very cool video, thanks! I was stationed in So. Weymouth 77-81
@timgreen4137
Ай бұрын
Love to hear those Detroits sing!!!!
@annabrodeur
2 ай бұрын
i’ll tell you what, that’s music to my ears
@CaptainKdogg93
3 жыл бұрын
Was on a boat in Hatteras with twin diesels and one ran away about 9 miles offshore on the way in and caught fire and sank. That sound of those engines in sync will forever scare the living shit out of me.
@car2069
3 жыл бұрын
Damn! Crazy. Hope mine never burn
@DGruhot92
3 жыл бұрын
A Detroit cold start with hardly any hunting. Nice to see some well loved Detroit’s.
@susanhenderson2322
6 ай бұрын
The noise in that engine room at WOT must be horrific, used to run a fire engine with a Detroit, could hear it a mile away
@thehandlesticks66
3 жыл бұрын
The one diesel cold start that doesn't piss off the old guy neighbor.
@dadtube1936
3 жыл бұрын
Love to hear them under load. Nevermind, watched further. Great vid!
@car2069
3 жыл бұрын
Thanks for watching the whole thing! More will be coming soon!
@marcusquinones5683
3 жыл бұрын
Nothing lovely like a good sound for a pair of Detroit engines on full revs 👍👍👍👍👍🇵🇷🇵🇷🇵🇷🇵🇷
@Shane-Singleton
3 жыл бұрын
Love the sound of the 2-stroke Detroits.
@dobermanpac1064
3 жыл бұрын
Two Stroke Diesels Baby!! Awesome in a Peterbuilt or the Yacht. 🤠🤠
@KubanKevin
2 жыл бұрын
There really is nothing like the sound of two diesels running in tandem
@brianrobado3901
2 жыл бұрын
The fumes,the wake and the screaming detroits ,that's full on happiness
@FX5067
3 жыл бұрын
Try engine block heaters or at the least, just a small ceramic heater between the engines. It really helps for easier starts.
@marcobosch5263
3 жыл бұрын
Ah, that's music 👍👍👍
@jimschneider1123
25 күн бұрын
One of the most unmistaken sounds, nothing screams like a Detroit
@mcimc558
2 жыл бұрын
Thanks for the ride Captain. Beautiful. Noise. Nothing like a Jimmy let alone two 💪💪💪💪💪
@cobra02411
3 жыл бұрын
Sounds like they're tuned well. That cold and they settled into a nice idle with no surge. Also, if I'm not mistaken Detroit's have no glow plugs, intake heaters or anything like that. Just heat from compression so that cold it's normal to crank them for a bit.
@car2069
3 жыл бұрын
You are correct. The only cold start assist is the block heaters, which were not used the day I shot this. I usually try to use them as they make a huge difference!
@kimnielsenthewordyvikingett159
2 жыл бұрын
I know it's not good practice but maybe give those sweethearts a small blast of ether. And yes I know not a good idea but saves a lot of wear and tear on the starters. And the increased RPM will shorten the oil starved bearings wear and tear. If as you said it's been sitting awhile maby even remote hand pump the lube pressure a bit before even one revolution just saying.
@TugboatMatt
Жыл бұрын
@@kimnielsenthewordyvikingett159 there’s nothing wrong with a little sniff of either just don’t use much. Detroit diesel like many other engines came from factory with a either injection option. It’s all about using common sense not to use more then necessary. Lots of cranking working it firing is also a lot harder on the engine than a little spray of ether because the raw diesel with wash the lube oil off the liners and cause lots of friction prematurely wearing the rings and liners (called washing out a liner).
@CableWrestler
7 ай бұрын
Beautiful. Nothing like that in the UK. I've never heard a detroit with my own ears
@kenbrand8972
6 ай бұрын
Absolutely stunning sound especially from the first engine
@1320fastback
3 жыл бұрын
Need to have BGM pay you a visit and give them a once over. Absolutely beautiful sound 😍
@doca8792
3 жыл бұрын
Why is this so satisfying? I can’t seem to put it into words for my wife.
@madmax2069
10 ай бұрын
Got to love the sound of a 2 stroke diesel at full song.
@cameronbenton1045
3 жыл бұрын
I want a Detroit to start early in the morning so my neighbors can enjoy the sweet sound of a screaming jimmy to start their day
@robertjackson7590
3 жыл бұрын
I've taken them apart when the piston crown lifted off of the piston trunk at the Fire ring and it was still running making power. These engines will run when you wouldn't think they could. Great design but needs current injection technology applied with glow plugs for the colder climates. Love the sound. Thanks
@smckinney3mckinney141
3 жыл бұрын
Glow Plugs are the old School way to wake a Diesel up on Cold winter Mornings. they now use an Intake Heater Grid. My 99 Dodge 24V has it.
@robertjackson7590
3 жыл бұрын
@@smckinney3mckinney141 Interesting, these 2 cycles didn't need them in South Texas where I'm from with 21:1 they didn't have any trouble but I don't know about Alaska.
@christopherhampson265
2 жыл бұрын
Light an oily rag near the intake but not below decks !!!
@chunkiermango7982
8 ай бұрын
@smckinney3mckinney141 the issue is those heaters kill airflow, they make a glow plug swap for it
@FLV.USA.CONSTITITION.2ND.
3 жыл бұрын
Lol... exactly the way my 8v71s on my 1979 45' chris craft commander start and sound!! Love it!
@JJ-jv1gu
Жыл бұрын
Bet it was a comforting sound hearing them scream
@stefan7869
2 жыл бұрын
2:07 Sounds like a big Rolls Royce plane engine at full throttle
@Z06ified
24 күн бұрын
You’re absolutely right. Same buzz saw sound RR Trent engines make at full throttle, with a hint of diesel added in. Very cool.
@stefan7869
24 күн бұрын
@@Z06ified Trent XWB and Trent 900. It's realy amazing
@fjs1111
2 ай бұрын
Love your Hatteras, she's a beauty. I have a Viking myself
@plowman1266
3 жыл бұрын
Those will get you there!!
@BigOleWhatchamacallit
Жыл бұрын
Gotta love the oil slicks on cold starts…🤠
@davidjones6616
8 ай бұрын
I am in the UK and if I had that engine in my boat I would cream my knickers, sounds like something that`s meant to fly
@scottstrang1583
11 ай бұрын
Detroit 2 cycles are musical.
@scdevon
3 жыл бұрын
Pretty good for that temperature. Love the cold idle hunt on the starboard engine. Now put the coffee pot on :-)
@spartin86
Жыл бұрын
Beautiful engine. Gorgeous boat ❤
@LIMowersAndMore
3 жыл бұрын
Let’s go fishing! Love them twin diesels reminds me of working on 3208s in a cement boat.
@robertwhite8599
3 жыл бұрын
Look at all the dead fish. Lol. Sounds good. I used to work on 16v92’s in fire trucks. I was younger and thinner.
@tomlowe8563
3 жыл бұрын
Some had 12V71's they wouldn't have used 16V92 in them for those except maybe haul trucks. 8v53's were put in fire engines. Scream!!!
@robertwhite8599
3 жыл бұрын
It was an airport truck from a military base. Wouldn’t even fit in the building. La Frances had the 53 and 71 series before the series 60 before freightliner bough em. Detroits were used in Reo’s, White’s,Brockways, Autocars(ccc), Brigadiers, c-70’s.
@okkiebokkelul9718
Жыл бұрын
2:07 to 2:16 pure music thank you
@noahlikesbeer5773
3 жыл бұрын
Cleanest engine bay I’ve ever seen I gotta crawl down into a tight ass space full of oil
@car2069
3 жыл бұрын
Gotta keep em clean!
@Triplex5014
3 жыл бұрын
If someone asks you What's The Rush? -I don't intend to rush but it happens when I listen to the beautiful sound of twin 8V71 Detroits.
@RedfishCarolina
Жыл бұрын
Man that's the sound of joy
@WhiskeyGulf71
3 ай бұрын
If I owned a similar boat, i’d swap out whatever was in there for two Mercedes OM606 engines. 3.0 litre inline 6 cylinder diesel, big turbos, big injector pumps, 1000hp.
@car2069
3 ай бұрын
Because an om606 at that power level will be reliable loaded 100%. Comical.
@bubbakushingtonIII
3 жыл бұрын
Gotta love that cold Detroit sound
@bertram46
21 күн бұрын
I had a 46 Bertram w Detroits. Like a rock
@heelerhealer7552
3 жыл бұрын
My friend has a pair like this in his 50' landing craft. I have one in an old 1967 Kenworth. Great engines, when they are kept maintained.
@willashley6366
2 жыл бұрын
That DD sound put me to sleep, love it!!!
@GroovesAndLands
Ай бұрын
Dad's 65 Hatteras had 16v92 turbos. They started at the slightest bump of the button. Crank wouldn't even go through 90º of rotation before they'd light off. Never tried it below about 50ºF though... Is there something wrong with these 8v71s, or was it just the cold? The sound: Can't nobody claim Detroits sound "sweet" or "mellow"; and the "screamin' Jimmy" nickname is well earned...they always sound like they're taking it in the shorts - but boy, do they work. You learn to like their busy, urgent sound.
@andrewallegra2006
2 жыл бұрын
Great video!!!!!!!! Those motors are music .
@moparmadman1134
3 жыл бұрын
Sounds like a quiet day out on the water!
@2fast2nick
3 жыл бұрын
My dad had the same engine in his Prevost bus.. sounded exactly the same!
@alanmumford8806
3 жыл бұрын
They sound so happy at full chat.
@routerider9542
14 күн бұрын
Nice engines. 2 stroke diesel.
@stevenromero1723
Жыл бұрын
Beautiful sound from a diesel inboard motor
@mattdaddy_888
4 ай бұрын
2:07 sounds so good!
@xanitrucker9946
Жыл бұрын
No matter where a Detroit is or how many cylinders it has. You'll know its a Detroit just by its sound.
@SolitarySwede
3 жыл бұрын
Thank you for this. I was sorta looking at a boat with twin Detroit 2 stroke diesels but you kinda talked me out of it :)
@car2069
3 жыл бұрын
If you get a good deal on the boat, the two strokes are ok. I paid 1/10th of what the same boat would cost with modern engines. That is a LOT of money left over for fuel, maintenance and beer!
@Romans--bo7br
3 жыл бұрын
Erik Hagglund..... people can bad mouth and make jokes about the 2 cycle Detroit's all they want (many have Never even owned one).... but, they are Extremely reliable and tough engines and will get you back to dry land, when others would fail you under similar conditions. There are literally thousands of incredible stories from fishermen (especially, commercial) and many others, about the engines still running with internal parts failures, that still got them through storms, etc.. and safely back home again, when just about any 4 cycle you can think of, would have just completely failed and left them stranded. There are Many fishermen and lobstermen that have said that they owe their very lives in otherwise life threatening situations, to the incredible reliability and toughness of the 2 cycle Detroit's. The very fact that the basic design, starting with the venerable 6-71, remained in production for 57 years, should say a Lot about it's reliability... despite all the ignorant comments by all the "u tube" diesel "experts"... when other manufacturers were and are, changing engine models and design about every 7 years on average.
@SolitarySwede
3 жыл бұрын
@@Romans--bo7br I wasn't trying to bad mouth anything. I know 2 stroke diesels are reliable, they are after all installed in a lot of larger ships. The boat I was looking at was a 35 foot pleasure vessel with flybridge with two of these engines, one of which had ceased. Now. It's not the most common engine in Scandinavia. Spareparts are sparse. I went on youtube to find videos of how the engines would perform when they were intact. Found this video and what I saw didn't appeal to me. So I decided that I would even make a bid on the boat. Now you came along and read something you disagree with (not sure how you can disagree with someones personal preferences, that's a bit presumptuous) and decided to give me a lesson of YOUR personal stance on these engines. Fine. I never said they were bad engines, that's something that YOU added in your head. I just prefer something a little bit more quiet on a PLEASURE VESSEL...
@Romans--bo7br
3 жыл бұрын
@@SolitarySwede... Hi, and thank you for your.... response. To quote you..."Now you came along and read something you disagree with (not sure how you can disagree with someones personal preferences, that's a bit presumptuous) and decided to give me a lesson of YOUR personal stance on these engines.". First of all, sir... You are the one who is being "presumptuous".... you automatically presumed, that.. 1) I was directing my comments at You.... which I was Not. You also began your reply by stating that... (quote) "I wasn't trying to bad mouth anything". I Never said Anything about You, "bad mouthing" anything, sir. 2) You also "Presumed" that I disagree with other peoples "preferences"... lets be honest here, Everyone... including You and myself, do not necessarily agree with everyone else's "preferences" all of the time, but preferences are just that... preferences. I was Not disagreeing with any of your preferences... as I said, my comments, as a whole... were Not directed towards you, at all. 3) You also Presumed that... I (quote) "decided to give me a lesson of YOUR personal stance on these engines." First of all, as I stated above... None of what I said was Directed to you, personally.. nor was it ANY kind of an "attack" on your personal preferences. Secondly, what I did say was Not from a "personal stance" per se.... it comes from 60+ yrs of personal experience, formal training and direct involvement with Detroit Diesel back from the early / mid 1960s through the mid 1970s. Also, I have a 4 year degree in Diesel Engine Design and Theory, specializing in 2 cycle (Clarke cycle) from the early to mid 1960s. In the early to mid 1970s I was involved as a consultant on several projects with Detroit Diesel.... whatever I say about the 2 cycle diesels from a mechanical or technical stand point, is Not conjecture, nor "personal opinion" like so much of which is espoused on the internet, with no real facts, knowledge or experience to back it up. What I said in my comment below your initial comment, again... was Not a pointed disagreement with yourself, nor was it intended to convince you to change your mind about anything. It was merely a "GENERAL Statement & Observation" as a "tongue in cheek" rebuttal in opposition to all those on the internet who do "bad mouth" the 2 cycle Detroit Diesels, which is generally based on complete ignorance of the engines and design parameters. As far as your stated reasons (in your reply to me) for Not wanting a pleasure boat with 2 cycle Detroit Diesels.... living in Scandinavia, where DD 2 cycle parts Are scarce... is certainly understandable. As far as wanting "quieter" engines for your desired pleasure boat.... I will say from a technical standpoint, greatly simplified... that it's debatable between the 2 cycle and 4 cycles, as to which is "quieter". Technically speaking, it is much easier to "dampen" high frequency resonances (2 cycle engines), than it is to "dampen" low frequency resonances, from a 4 cycle from a lessor to a higher degree.. depending of course on engine brand, design, displacement and power outputs. When you say you are preferring "quieter" engines.... are you referring to sounds emanating from the "engine room", or... from the actual exhaust port(s) at the stern of the boat... or, both? What size of boat are you contemplating (length & approximate weight range) and what cruising speed and maximum speed are you desiring? Salt water, or fresh water lakes? What marine engine brands are prevalent in Scandinavia for the size of boat your contemplating to buy? Scania, MTU, Volvo Penta, MAN, Marinediesel Sweden (VGT range), Nissan, Yanmar, Iveko, Cat, Cummins, etc, etc, etc.?? As far as the twin 8-71 Detroit's in the video... they are Naturally Aspirated (Roots blower, only.. for cylinder scavenging & fresh air intake at about 3-4 psi), and are louder than the turbo charged versions (8-71T / TA or TiB), for two reasons, 1) Higher compression ratio.. 18.7:1 versus 17.0:1, plus running the exhaust through turbochargers, dampens a considerable amount of frequencies, compared to the NA versions. Both of these engines were in need of a good tune-up... injector racks / full throttle positions reset, exhaust valve bridge clearances checked, and governor tolerances rechecked and set for idle, low speed and high speed settings.... they did not seem closely synchronized according to the tachometers, and from what I was hearing. Anyway.... sorry for the misunderstanding.... feel free to reply back again, really would like to hear your replies to my questions regarding your desired future boat. Just as some trivia... back in the 1960s through the late 1980s and even early 90s... the 2 cycle Detroit Diesels held a whopping 82 percent of the Global power boat markets (pleasure boats) from 100 hp up to 2500 hp. No Diesel engine has ever held that large of a market share, before or since then. Take care.. stay well.
@SolitarySwede
3 жыл бұрын
@@Romans--bo7br Since your initial comment started with my name I assumed that your comment was aimed at me. Nothing presumptuous, I was just reading what it said and responded. If your comment hadn't had my name in it I probably wouldn't have responded at all. I'm now owning a much smaller vessel with a Penta D3, it's a good little engine, quiet and pretty fuel-effecient. 1 US gal of diesel is now 7 USD here in Sweden, more expensive than petrol even. At a cruising speed of 17 knots I'll get roughly 5 nautical miles for every gallon (should be right, I had to convert it back and forth between metric and imperial) and when going at around 7 knots I can hardly hear the engine. The biggest brands here are Penta, CAT (on larger boats), Yanmar and Cummins... for diesel. For petrol I think Mercruiser it the biggest, their MPI and EPI engines. Penta also has a couple of petrol inboard engines but they're not that common. The boat I WAS looking at, when I watched this video was a...hmmm, I forgot the brand... it was a 34 foot american boat (not chriscrat, bayliner or searay) with a flybrodge... it had those engines, I searched for "V8 Detroit Diesel 71"... just to get a feel for what kind of engines it was... did not even realize they were two stroke before I watched the clip. And the fact that I couldn't find even one retailer in this country (I've since found TWO that will service these engines) that carry DD products and the fact that I found them to be 1. too loud and 2. too much output power (says something about the fuel consumption) I simply stated that this was not for me. Have a nice day, and greetings from Sweden where early signs of fall are beginning to show. ps. I reside in this general area: goo.gl/maps/eZxyQrw5pqHDiHQJ7
Пікірлер: 459