11 cylenders, 22 pistons, and 2 crankshafts

[nickleinonen]

6000 hp x . 7457 = 4474. 2 Kw. it will make that in self load test 1. if the sd90's are anything like the sd75's, in load test 2, it will make a few hunderd hp more



most 6 axle freight units weigh in at ±400,000lbs. and i believe that is dry. now add 5,000 gallons of fuel, 200 gallons cooling water, 300 gallons lube oil.



and iirc, on a fresh set of wheels on fresh rails, the total contact patch is like the size of a dime...

 

[jimk]

There are two of the op engines at Vernon Diesel power station. The first time I heard one run it sounded like a train engine. It use to be a power station ran by the city before WTU bought it There are Fair Banks, Norrisburg, and Enterprise dual fuel engines. They are all for sale if any one wonts them. I went to work 17 years ago and we use to run them and keep the engines in running order. The best engine was the Norrisburg or how ever it is spelled. You did not wont to stand to close to a Enterprise inspection cover under full load. The Enterprise was no held in great regard by the mechanics. The turbos on the Enterpise are huge. . Along with everthing else.

A mechanic told me that a city offical came down to see why the mechanics were making more money than a school teacher and on her tour of the plant he stopped between two big exhaust and when the makeup starting running down the city offical face, my friend said that she never came back to ask or inspect that plant again.

Rodger has a way of getting his ideas across. JimK

 

[DBoyd]

6000 hp x . 7457 = 4474. 2 Kw. it will make that in self load test 1. if the sd90's are anything like the sd75's, in load test 2, it will make a few hunderd hp more



most 6 axle freight units weigh in at ±400,000lbs. and i believe that is dry. now add 5,000 gallons of fuel, 200 gallons cooling water, 300 gallons lube oil.



and iirc, on a fresh set of wheels on fresh rails, the total contact patch is like the size of a dime...

That is some great information and re: the contact patch, I guess that is why the locomotives have to weigh so much!!!

I read somewhere that an electric motor and a steam engine are the only motive forces that can develope full horsepower from a start.

 

[SHobbs]

Locomotives will scoot by themselves or coupled with a few more. They will surprise you with how quick they are for their size. GE makes certain models but they are not as good as the EMD's. The 6k horse models load up slower but pull very hard when they get there, the best I have ever seen as far as loading quick and doing whatever you want is the SD40. Nickleinonen don't forget about the sand, somewhere around 400 lbs worth. The SD40's have a sound all their own, I believe they have twins. You can really hear the turbo's on those puppies and they have a chest beating vibration like no other.

 

[nickleinonen]

the only emd engines that have twins on them is the new 4 cycle 6k hp version. [same for the ge's, only the new evo series 6k hp has twins] the sd40's are 16v645E3/E3B engines with a single gear driven turbo with overrunning clutch. the sd40s iirc are the 4 axle units & 3000hp.



as for the ge being not as good as the emd's... the emd's have more problems, but they seem to be smaller in scale. when a ge goes bad, it is a bigger failure... water pump change out on an emd takes like 1. 5 hrs in and out and you can lift the pump by your self [±110lbs] while on a ge, you need to dump all the engine lube oil, and have a crane or comealong to get the water pump out [+200lbs]



the turbocharger on the ge is a little easier [and much cleaner] to change out. there is no measurements to make on the compressor wheel to housing clearence as it sits on it's own legs. on the emd's you need to measure the compressor wheel to housing clearence to make sure when you bolt in the aftercooler air ducts that you don't distort the compressor housing.



for the powerpacks... i like working on the ge powerpacks more. they are cleaner to do, but they do take a little longer. the emd power pack is dirtier to do [oily, all covered in carbon oil sludge] but depending on how well you clean things up, you can have the powerpack out-and-in in less time than the ge [if you work real quick and are doing companion cylinders, you can do 2 in like 5 hours]



if you want to hear a turbo screaming, listen to a ge or emd engine under full load with a damaged turbo compressor blade [chipped blade or bent blade] and man do they scream under load [you can hear them from like 1/4 mile away]

 

[NevadaBackroader]

I was stationed on the USCG Cutter Rush, WHEC 723 in the 70's. It is now based in Hawaii. The WHECs (378') were powered by twin FM 12 cyl super charged with turbo chargers tacked on. These were inboard of twin derated jet engines which I think were Pratt and Whitneys. Each side drove a huge flywheel/transmission which directly drove the variable pitch screws. As I recall, we would run the diesels up to around 20 knots and then transfer to the jets for about 30 knots. This was under Jimmy Carter, so we only got about 10 hours of jet time a month.

 

[DBoyd]

nickleinonen

Please explain what a power pack is?

Thanks

 

[RustyJC]

On the GE engine (formerly the Cooper-Bessemer FVBL), the cylinder head is integral with the cylinder. An individual head, cylinder, piston and connecting rod can be removed from the engine as a unit (a power pack) and replaced as an assembly. I believe the new EMD is the same general configuration insofar as changeout of a piston and cylinder is concerned.



Rusty

 

[SHobbs]

I looked inside the engine compartment on an SD40-2 and it looked like twins, I could be wrong though. You can defintely tell when an SD40 or any other SD type is around, that is a sound all it's own. Niclkeinonen when are you guys on the CN going to do what the CP guys did and A card the UTU outta there. We are currently trying to get more to change over to the BLE-T here in Ft Worth. Sounds like you work in the shop, I work in transportation, mostly switching the yard. I was a conductor for a while, but got tired of not being home.

 

[Jeff H]

Is there any web sites out there that have pics and information on all the vessels. When I was about 4 or 5. A navy ship came up to the great lake to Duluth MN. I think the name of the vessel was U. S. S. William C Lawe. Just wondering if the ship is still in service?

 

[nickleinonen]

nope, it is a single charger on the 2 cycle diesels, but the compressor housing on it has 2 discharges [from the front of the engine, the left side faces down, the right side faces sideways right] one to feed both side aftercoolers. i searched the net for about 30 min trying to find a picture of the 'charger but couldn't find anything... i guess i need to get one of them cheap disposable cameras and take that into work to snap some pictures there...

 

[Ancient Mariner]

The US Navy no longer has diesel electric boats. All our submarines are nuclear. There is a small problem because of this, we agreed to provide Tiwan with diesel submarines and now have to buy them from another country. The Germans have developed a system which allows them to run there diesels submerged with no snorkle by recycling exhaust and adding additional gases. Not sure how long they can go submerged with this system.