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confused about birds (66.167.79.202)

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Posted on Saturday, September 20, 2003 - 8:49 pm:   

I've read much about 2 stroke v 4 stroke here but can't find a list of which engines are which?

I'm thinking the Series 60 is 4 stroke but which others?

Thanks
BrianMCI96A3 (65.41.249.60)

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Posted on Saturday, September 20, 2003 - 11:20 pm:   

Confused,
Let me see, OK lets do it this way, first, the new 'series' Detroit engines are 4 stroke, Detroit's 6V92 8V92 6V71 and 8V71 are all two strokes and these 4 are the vast majority of 2 strokes out there. Someone may know of other manufacturers, but I am not aware of any others out there that made 2 strokes in at least the last 30 years. Certainly, no one is making them any more!

Brian
BrianMCI96A3 (65.41.249.60)

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Posted on Saturday, September 20, 2003 - 11:26 pm:   

I should add that meant to say the "vast majority of coach 2 strokes" There are several Detroit inlines and even smaller displacement V's.

Brian
Richard Bowyer (Drivingmisslazy) (24.196.191.70)

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Posted on Saturday, September 20, 2003 - 11:35 pm:   

6-71 (in line) DD is also a two stroke.I believe they also made a 4-71.
Richard
FAST FRED (67.75.109.200)

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Posted on Sunday, September 21, 2003 - 5:42 am:   

GM made 1-71 ,2-71,3-71,4-71 6-71, 8V-71 12V-71 and 16V-71.

The tiny ones went into pumps and gen sets the bigger into busses , the larger into boats.

All were rated about 30 HP per jug , all work "forever" if loaded to at least a gallon an hour per jug.

There are other larger & smaller engines using the same ID system.

FAST FRED
BrianMCI96A3 (65.41.249.60)

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Posted on Sunday, September 21, 2003 - 10:20 am:   

Well, lets not forget the 2-53, the 3-53, 4-53 and 6-53 etc etc. Fred, the question is vague but I'm assuming the 'confused' one was asking about coach power plants.
So, I submit that IF that is the case, lets not confuse the issue. If the 8V71, 6V92, 8V92, 6V71 are the vast majority of two stroke coach engines, then the 6-71 and the 4-71, the two Richard (and Fred) mentioned are the bulk of the rest.

Brian
Gary Stadler (Boogiethecat) (68.7.217.217)

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Posted on Sunday, September 21, 2003 - 11:36 am:   

And since Henry didn't pipe us for us Crown guys, I'll do it. Cummins 220's (and all the rest of the engines in that series...743's) are all 4 strokes, as are the bigger cummins motors (855's, etc)
Though I have seen a few Crowns with pancake DD's in their bellys...
Richard Bowyer (Drivingmisslazy) (24.196.191.70)

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Posted on Sunday, September 21, 2003 - 5:35 pm:   

To my knowledge, no one but DD has made commercial two stroke engines. All the rest like Cat, Cummins, IH, Ford are all four stroke.
Richard
Phil Dumpster (12.230.214.167)

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Posted on Sunday, September 21, 2003 - 8:28 pm:   

Fairbanks-Morse, Sulzer, EMD, et al make or made 2 cycle diesels.

Most big engines in ships are 2 cycle, although 4 cycle engines are making inroads there.

Detroit is still making 2 cycle engines for military and stationary use.

You can thank the EPA for the death of 2 cycle engines for on-road use in this country.
Tom Caffrey (Pvcces) (65.74.65.5)

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Posted on Sunday, September 21, 2003 - 9:50 pm:   

And recently, Fast Fred made a post showing the biggest, if I am not mistaken, and the most efficient internal combustion engine yet made. That, too, was a two stroke, but not a DD.

Just to add a little flavor to the mix.

Tom Caffrey PD4106-2576
Suncatcher
Gary McFarland (Gearheadgary) (198.88.152.22)

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Posted on Sunday, September 21, 2003 - 9:54 pm:   

this one?

http://www.bath.ac.uk/~ccsshb/12cyl/

Gary
BrianMCI96A3 (65.41.249.60)

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Posted on Monday, September 22, 2003 - 12:16 am:   

Gary,
that just blows me away, a half a million foot pounds of torque @ 102 RPM! Those pictures are just amazing. Wowza, I'll bet the power curve is incredible to look at too.
Brian
David Anderson (168.215.176.184)

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Posted on Monday, September 22, 2003 - 12:29 am:   

They could sell tours to people who would just watch the thing fire up and hear it run. I bet starting that engine is quite a process.

David Anderson
Smoky (12.222.48.5)

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Posted on Monday, September 22, 2003 - 1:27 am:   

IF anyone remembers watching the Iraq liberation coverage there was one reporter riding with a crew in a L.A.V . Whenever he would report all you could hear is that 2 cycle Detroit singing that sweeeet Detroit sound.
Gary McFarland (Gearheadgary) (198.88.152.22)

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Posted on Monday, September 22, 2003 - 2:09 am:   

Brian,
It's the ladders on each bulkhead that get me--

David,
I'll sell ya tours to hear it ;-)

I'll have to watch for when one's in port.

Gary
FAST FRED (67.75.106.234)

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Posted on Monday, September 22, 2003 - 4:58 am:   

The most impressive part is these Marine 2 strokes are chosen because there more efficent than the 4 strokes.

Perhaps if the "Pure Air" nut cases had allowed DD to continue to refine the design , we would be allowed this greater efficency in our coaches.

AS it stands now EVERY new car & truck suffers a 15% reduction in milage due to that last .0001% of "clean" required.

The truck industry is all up in a tizzy as the '07 rules will cost another 15% in milage and about 25% in operating costs and even more in engine life.

Estimated to cost over 100 million just to create an oil to operate for the 07 engines.

FAST FRED
nvnenzel (207.213.161.117)

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Posted on Monday, September 22, 2003 - 2:29 pm:   

I wonder, bus conversion... ship conversion? Lot's more room and imagine the board for that one. " I just picked up a 330' container I'm going to convert to a motor yacht. The turning radius is better that the 440' and boy does it ride nice. Had to sacrifice the twin screws for economy. Any one here swap out a 10 cylinder for a twelve and if so how many ladder rungs to I install in the crank case??? :-)

nvnenzel
Gary McFarland (Gearheadgary) (198.88.152.22)

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Posted on Monday, September 22, 2003 - 2:57 pm:   

and:

We've figured out where to put the tennis court, and the bowling alley, but having problem finding turf for the polo field.

Also, planning to convert to Biodiesel, anybody know about any REAL BIG restaurants I can back up to?


Gary
Richard Bowyer (Drivingmisslazy) (24.196.191.70)

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Posted on Monday, September 22, 2003 - 5:01 pm:   

I was on Roger Penske's yacht a few years ago when he still owned Detroit Diesel. He had cut a hole in the side, pulled out the original engines and replaced them with two V-24's. Boy would that baby run!
Richard
Richard Bowyer (Drivingmisslazy) (24.196.191.70)

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Posted on Monday, September 22, 2003 - 6:08 pm:   

PS, I forgot. they were 24V149's.
Richard
PPS I tried to edit the previous message, but Ian has a 30 minute time limit set on editing priveleges.
jim mci-9 (209.240.198.60)

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Posted on Monday, September 22, 2003 - 8:29 pm:   

caterpillar has a 24 cyl version of the 3500 series engines....seen it in pics, but not in production....lots of the 16 cyl versions.. 12's too...the 3516 is about the same physical size as a 16v149....but i luv that 2stroke sound.... quad turbos... straight 2' exhaust....lots of these on the frac units used in the oilfied.
Derek (24.66.241.23)

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Posted on Monday, September 22, 2003 - 9:04 pm:   

I got a tour of a (??) 3012 or 3212 CAT in a BC Ferry, Queen of Cowichan. Boy, that was fun.. They're mounted in such a way as the props (4!!) are indifferent to the engines orientation, allowing it to go sideways off the dock.
Gary McFarland (Gearheadgary) (198.88.152.22)

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Posted on Monday, September 22, 2003 - 9:14 pm:   

Probably a "Z" drive most of the towboats use them now, yes it's very cool, they have full thrust in any direction.

BTW the "Z" is pronounced "$"


Gary

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