Two stroke diesel??

[patrickg]

bgott, Just a couple comments; 1. Compared to just about every other duty in the Navy except a SEAL team, submariners are the most highly crosstrained/substitutable troops they have. Of course a supply clerk may have been the back up cook, second backup, morale and welfare guy, etc, but you never know... They cross train the "H" "E" Double toothpicks out of the nukie sub jocks. 2. Yeah, the reduced magnetic signature could have made compass adjusting easier but what of the out of work flinders bar manufacturers?

I know they run electrical cables around on ships and energize them to try to offset/neutralize the ships magnetic field (regular steel ships) but I don't know if they did that on those particular craft. I am somewhat familiar with GMC 6-71 and 4-71 but not the Detroit 6-71 in cast iron or aluminum. Same engine? Or accidental/coincidental name similarity?

Patrick

 

[Hydraman]

Wasn't the triple nickel also referred to by another loving name?? such as JUNK!!!!!! or am I mistaken on this one???

 

[bgott]

GMC =Detroit Diesel.

 

[bgott]

http://www.detroitdiesel.com/Public/DDC_Who/corphist/DDC_CorpHist.asp

I guess it ain't a jimmy no more...

Actually, I think they always had Detroit Diesel on the valve covers, except maybe in a GMC truck.

 

[patrickg]

DU-UH

Thanks bgott. Now I know nearly twice as much about marine diesels. (Same stuff about two diferent brands) The ole Johnson-Evinrude trick. Used to love to hear the old timers argue over the relative merits of Johnson vs Evinrude outboards, while I knew that they were merged and made in the same factory years ealier that the discussions.

Patrick

 

[RobertN]

There is such things, as others have mentioned. WT28, the water tender at our Fire Station is an '82 GMC with a 350hp Detriot in it. It is one loud engine. It's not too bad in the cab, but when you are out on the pump panel, it is really loud.

I like the 350hp 8.9l Cummins in our new engine. Now that is a great motor! Sounds just like my TC Dodge, with a deeper rumble/w3tcompact/icons/grin.gif

 

[DarekLanz]

Regarding the statement:

There is also at least one more. Lanz made a tractor called the "Bulldog" that used a single cylinder two-stroke diesel. They had some kind of agreement with Deere to sell the tractors in this country quite a few years ago.

Lanz Bulldog tractors had a single cylinder two-stroke hot-bulb engine (a concept of Herbert Akroyd Stuart). Against the common beliefs, it is not a diesel engine. It has a compression only 1 to 6, whereas for diesel engines the compression is 1 to 12, or more. It was rather a precursor of the future diesel engine.

 

[RickB]

There seems to be one 2 stroke missing from the list. Cummins built one in the early to mid 80s designated the 555 or better knowm as the triple nickle

Missing because the 555 was a four stroke engine.

 

[sandman2234]

Early in my career of truck driving I drove several. You had to drive them like you were mad at them most of the time. (drive it like you stole it is today's description).
David from jax

 

[RickB]

Demand a Superior Powertrain | Demand Detroit

I guess it ain't a jimmy no more...

Actually, I think they always had Detroit Diesel on the valve covers, except maybe in a GMC truck.

Any I have seen in tractors had GM cast into the intake.