2 strokers

If you have much of an emissions law up there, you are going to have a rough time getting a Detroit through the system. Second item, if you are planning to haul containers, traditionally the lowest paying freight it is possible to put behind the truck, you aren't going to be able to afford the fuel to run a Detroit. They are an engine designed in the 1930's, and the fuel use reflects the price of fuel at that time. A good Detroit, set up as mechanically perfect as possible, and driven with a constant eye on economy, is going to be a 5 mpg engine at best. On container money, that's a sure way to go broke fast.

 

Not a chance.

 

When I was in tech school I remember we shut the ol' detroit off using the Emergency shut-off...we had half that #### school filled with black smoke...we loved the sound of that ol' detroit back when we was young though...but we also liked the sound of a balloon full of 50/50 oxygen and acetylene too...maybe that's why I always got to tell people to speak up when they talk to me

and we used to have an old detroit manure truck...thank god that thing had good brakes cause it'd run away almost every time we used it...we just started cuttin it off by stompin on the brakes and going to high gear

 

For show and toys though... they are lots of fun!

 

HAHAHA READ MY SIGNITURE

the best sound is a 318 hooked to a kw w900a

my dads getting a 72 ford l9000 with a 318 in 2011 and he said i get to see what a real truck is haahhahahaha

travis l

 

Man I relly dont think you guys really know the origins of detroit diesel. Detroit two strokes came about in or around WWII. they were great boat engines. they had really good horsepower despite the low torque number. this didnt matter much as boats utilze the horsepower function. what is horsepower??? horsepower is an mesured amount of work accomplised over an amount of time. 746 watts = 1 hp. torque is how hard it will twist against a load. detroits were wellsuited for boats as they like high rpm and like to stay there for long periods of time (measured amount of work accomplished over an amount of time). the low torque number is due to the fact that the power portion of the stroke is only a couple of inches long compared to a good 4 inch stroke of the cummins engines of the day.

Ok after WWII what to do to stay in bussiness?????? best logical place to me would be to try to jump into the truck market since the economy of the day was really taking off and there wasent much demand for war boats anymore. Since there was a good number of war vets that had grown used to the detriot engine there was a good fanfare for them despite the fact there were better engines on the market. lets face it if you were in the middle of the ocean and you could put the thing balls to the walls (balls of the govenor to the housing wall, thats where the term came from) day in and day out and get your ### out of harms way when it was really need i think you probably would grow an affection for it to.

ok some facts about the two strokes detroits. in the boats they didnt have a reverse gear. there was two starters and they would start them up and run them backwards for reverse. ofcourse you had to have a oil pump that would accomidate this. All detriot two stroke are considered naturally asperated. ok ok i know it has a supercharger. actually no it dosent. it has a blower. to be supercharged the air pressure in the cylinder has to be greater than atmosperic pressure before it startes to compress to be supercharged. since the intake ports close before the exhaust ports this engine is naturally asperated as there is just no way to get a pressure higher than atmosheric in the cylinder before it starts to compress. this can be accomplished however by setting it on B timming where the exhaust closes before the intake will. usually this will result in a a burnt up engine as they just cant take the heat this produces sine only a very small section of the liner is exposed to cooling water. you can add a turbo to the engine and it does increase power. how??? it unloads the blower. what does that mean. it takes about 50 hp to drive the blower to drive the air into the cylinder and scavenge the exhaust. so when the turbo pressure comes up it unloads the parasitic load on the blower and reliving the 50 parasitic load. about 50 hp gain is all your gona get. some of the later models had a bypass to bypass the blower at higer rpms when the turbo pressure came up. also i heard it said on here that apperently a detroit will take a little water. this is so untrue. watter will not pass through the injector tips like fuel and the result will be that you will blow the tip off of the injector and this thing will smoke far more than you ever thought possible. Ask me how i know lol

Also as far as them suking oil past the rings??? this cannot happen. remeber it is two stroke the pressure in the cylinder is always positive. no intake stroke hence the blower. so how can it suck oil into a chamber that has a positive pressure. heres what happens. some ####### gets tired of it puking oil all over gods creation. he notices oil coming from a little tube on the side of the engine and decides to remove this tube and put a plug in it. besides the oil should stay in the engine right??? and now he is a happy truck owner till his airbox fills with oil and has nowhere to go as the drain ports are no blocked off. the oil builds up and starts to get ingested into the engine. this is uncontrolled fuel and since there is no air flow restriction it will rev up as high as the design limiting factors will permit and cause a mass migration of parts. I have seen clutches explode and send shrappnle up through floorboards. If you have seen this without the airbox drains plugged then what you saw was and engine tha tthe rings were so worn out that it pummped out more oil than the drains could drain and mass migration of parts. I have seen guys try to shut down a runaway detriot by placing his body over the intake to the blower. it sukked his guts clean out and he suffered a pretty gruesom painfull death. not freaking pretty i can tell ya.

Oh yea by the way the 13 speed was not created specifically for the detroit. they were made for running the western hills where it was nessaccary to keep any engine in the upper rpm range while climbing hills and a short rpm drop or increase was desired. actually you hardly ever saw these behind a detroit as they didnt run this engine much out west. east coast loved em and ya didnt really need a 13 speed in the flatlands

Hope this sheds some light on the old two strokers

You old timers will know im not full of ##### as I can tell you what a stack mirror is and what it was for lol

 

Definately! I know a guy who has an '81 freightliner cabover with an 8v92t and 9 speed for sale. Seriously looking to snag it.

Good shape for its age.