What is a two stroke diesel?
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Here is a 6-71 sounding just right! http://www.youtube.com/watch?v=HF9Hz...eature=related
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From: LaGrange, Texas
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From: APEX,NC
In 1990 to 93 i was a tech writer for Komatsu-Dresser in Peoria,Il. We built the Haulpak line of off road / mineing trucks. The largest truck in the world at the time we built was an 830E. It was driven by two huge electric wheel motors which recieved juice via a generator. We had a contract for a Russian mine and they wanted a 20V engine. So we put together a Detroit 20V - A single V8 sandwiched between two V6's. It was pretty cool. I only got to hear run a couple of times and never was able to do a follow up on the performance of truck. I was layed off from company in January of 1993 due to the economy being as it is presently. I do have photo's stored around the house somewhere of the completed engine.It might be possible to google info on vehicle.
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doggone those 2stroke detroits sound great, also one of the best for sound was the 8V53, only seen them in marine use and some miltary tanks.
they didnt shudder, they howled like an animal, sound of 16cyl. WHEW!!
Thx ron
they didnt shudder, they howled like an animal, sound of 16cyl. WHEW!!
Thx ron
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From: Alberta
I don't know how accurate it is but this is from ALLPAR. From The Clessie Cummins Biography:
"For the two years that Clessie had not been to the race, an in-house debate had raged over the advantages of two cycle diesels. For his part, Clessie had some healthy skepticism since up to that date, the majority of engines, including his own, used the Otto four stroke cycle. Two strokes were difficult to keep lubricated, and smoked pretty heavily. Diesel tended to make the smoking worse. Still, GM was rumored to be developing a two-stroke diesel.
To settle the issue, Clessie built a two cycle and a four cycle racing diesel. Cummins again commissioned Duesenberg to build two special chassis. Two 364 cubic inch engines were made, built from aluminum and supercharged, an area that Clessie had found new great success with in his truck engines. Both cars qualified, with the 4 cycle in 22nd starting place, and the two stroke in 29th place. The 4 cycle made it to lap 81, driver Dave Evans blew the transmission on leaving the pits. A short time later, the two cycle came in, and the driver had burned his foot on the hot transmission casing. Evans jumped in the car for relief. For the rest of the race, the two cycle ran hot, blew clouds of grayish blue smoke, and churned its way through the field. Evans brought the car home in 12th place. It remains the highest finish for a diesel.
The cars were brought into the garage area. As the two cycle began to cool, unmistakable sounds of metal bonding itself to other metal were heard. The pistons, and other components, had literally melted into the sides of the block, seizing the engine up forever. Cummins was quietly furious. He slammed the garage doors, and he and another mechanic removed it from the car. It was loaded into the back of a truck. During the evening trip back to Columbus, a stop was made on a bridge over the White River. Cummins and two other men pitched the two cycle engine into the deepest part of the river below. Nothing was said. No more discussion about two cycle diesels occurred at Cummins. That policy remains in place to this day."
"For the two years that Clessie had not been to the race, an in-house debate had raged over the advantages of two cycle diesels. For his part, Clessie had some healthy skepticism since up to that date, the majority of engines, including his own, used the Otto four stroke cycle. Two strokes were difficult to keep lubricated, and smoked pretty heavily. Diesel tended to make the smoking worse. Still, GM was rumored to be developing a two-stroke diesel.
To settle the issue, Clessie built a two cycle and a four cycle racing diesel. Cummins again commissioned Duesenberg to build two special chassis. Two 364 cubic inch engines were made, built from aluminum and supercharged, an area that Clessie had found new great success with in his truck engines. Both cars qualified, with the 4 cycle in 22nd starting place, and the two stroke in 29th place. The 4 cycle made it to lap 81, driver Dave Evans blew the transmission on leaving the pits. A short time later, the two cycle came in, and the driver had burned his foot on the hot transmission casing. Evans jumped in the car for relief. For the rest of the race, the two cycle ran hot, blew clouds of grayish blue smoke, and churned its way through the field. Evans brought the car home in 12th place. It remains the highest finish for a diesel.
The cars were brought into the garage area. As the two cycle began to cool, unmistakable sounds of metal bonding itself to other metal were heard. The pistons, and other components, had literally melted into the sides of the block, seizing the engine up forever. Cummins was quietly furious. He slammed the garage doors, and he and another mechanic removed it from the car. It was loaded into the back of a truck. During the evening trip back to Columbus, a stop was made on a bridge over the White River. Cummins and two other men pitched the two cycle engine into the deepest part of the river below. Nothing was said. No more discussion about two cycle diesels occurred at Cummins. That policy remains in place to this day."
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From: Meriden Connecticut
I ran a Trojan 4000 for many years with an 853 in it.You could hear it working for miles away from the pit.That is a 5cy wheel loader for those that don't work around construction equipment.Ron G
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From: Branchville, Alabama
Most of the Trailways Eagles and GM Challenger coaches were 318 Detroit, there should be many thousands of them still in service. Then the "fishboul" GM coaches were 318 and looked like a city bus. Drove a bunch of them. They could do over 90 mph.
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From: Sultan WA USA
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From: Yuba city Kalifornia
In terms of trucks and small to mid-sized commercial fishing boats, 'two-stroke' GENERALLY refers to diesel engines that are two cycle instead of four cycle like our Cummins', and were manufactured by Detroit Diesel.
Detroit Diesel means loud, leaky, oil driping hunks of iron that are also suitable for use as boat anchors.
Detroit used to use letters and numbers in their engine series to determine leakage amounts and actual gross horsepower, ie; the 6-71 series denoted 6 horse power and 71 leaks. The 8V-71 designated 8 horse power, a 'vee' configuration motor (as opposed to an in-line), and 71 leaks.
Other than that, what Haulin_in_Dixie said above is also true.
Hope this helps!
chaikwa.
Detroit Diesel means loud, leaky, oil driping hunks of iron that are also suitable for use as boat anchors.
Detroit used to use letters and numbers in their engine series to determine leakage amounts and actual gross horsepower, ie; the 6-71 series denoted 6 horse power and 71 leaks. The 8V-71 designated 8 horse power, a 'vee' configuration motor (as opposed to an in-line), and 71 leaks.
Other than that, what Haulin_in_Dixie said above is also true.
Hope this helps!
chaikwa.
We used to call them leaktroit diesels I had 1 that didnt leak but it blew up(I think it was constipated )my silver 92 sure ran good but.....leaked
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From: Okotoks AB
seen a 12V149 TTTT, set a speed record at Bonneville, 278mph. i was impressed!! for a truck, and the tow truck was a long nose pete, single screw, went 165mph, and drives it back and forth to the track from washington st. 8V92 twin turb. HEY! how bout them K model cummins, they where pretty good too! Thx Ron
what kind of truck fit a 12v149 in it. I work on 149s all the time on Oilfield frac pumpers. no truck I've ever seen could hold one underhood. they stand a solid 6' tall and weight better than 10,000 lbs.
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From: Okotoks AB
heres a wreck of a 149 we got laying in the shop, no pan, no top end, no turbos, no exh manifolds....... unless you just strap a seat infront of it and Let 'er BUCK it weighs so much I don't realistically see it being able to go that fast. let alone have the tire capacity to hold it up AND not blow out at that speed.
I'm not saying it didn't happen.........but I need to see it to believe it.
it weighs so much I don't realistically see it being able to go that fast. let alone have the tire capacity to hold it up AND not blow out at that speed. I'm not saying it didn't happen.........but I need to see it to believe it.
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From: Okotoks AB
bump for some more info on this 2 stroke 149 speed truck. been googling for a while and only come across a coupe rigs with mid engine 16v92s. the Bandag Bullet and some other Freightliner contraption called Joint Venture. whch holds some record at 228.9 mph in unlimited class.
thats no Detroit 149 at 278mph...........
thats no Detroit 149 at 278mph...........