Imagine changing the timing belt on one of these

[Speedy88]

Ship engine

[volvosneverdie]

I can see the top one in a 300.

[Speedy88]

Possible, just put a toolkit in the boot to sort out the handling issues.

[jtbo]

My father used to build those (big ship motors, not that specific model naturally as it was early 80's then), well of course not alone, he was in building team (Wärtsilä). When I was a kid, visited his workplace and those motors were rather large, maybe it was just because I was a kid, but cylinder was like looking into water well or something, was scary to be up there, but indeed I was a kid back then.

Timing belts are used with only cheapo consumer motors that have really short servicing interval, there is no belt with these.

Most powerful motors on this planet are made here in Finland (RT-flex96C), who is first so shovel that into 300? Would be indeed the most powerful 300 on earth and probably beyond Here is pic of installed one to help figuring out critical parts, those are not midgets in pic.


Forces in play are so massive that even tiny error can cause motor to self destruct, but there is good management and those run quite low speeds, but there is huge amount of force stored that crank alone @102rpm that is where that over 108 000hp comes at.
http://www.wartsila.com/,en,press,0,,82 ... AFD,,,.htm

All heat is used and not wasted in those, they are way ahead of car motors in many levels, fuel efficiency is a lot higher than any 'eco' hybrid, incredible motors in so many level.

[volvosneverdie]

I would not want to have to bump start one of those.
Id never really even considered that engines as big as that existed.
Cool thead.
Anyone got anything bigger??

[jtbo]

I would not want to have to bump start one of those.
Id never really even considered that engines as big as that existed.
Cool thead.
Anyone got anything bigger??

Sorry to disappoint you, but there is no bigger, that is the biggest motor in whole planet earth as far as I know

There is perhaps bigger gas turbines (physical dimensions) for some special on site use, but I doubt there is any bigger piston motor as that is almost always quoted as world's largest motor.

One cylinder's displacement is 1820 litres, there is 14 of them, and you thought that 8 litre motor is big, how that 2.0, 1.7 or 1.4 sounds now?

Actually B200 series motors would not be enough to even start that monster, it does require quite a lot more power to get it running. 300 ton crank alone needs quite bit of force to get it running, they probably use compressed air that is forced into combustion chamber, haven't really examined that much, but it is perhaps only way to get that mass moving. My father told once that oil is preheated on those, but I can't be perfectly sure if that is true or not, he has bit of tale tongue at the times.

edit: There is startup of one monster, sounds quite different from car motor:
http://www.youtube.com/watch?v=gNivldRNVLc

[MCHUDD]

Hi all.
I spent 11 years working on HMS Caroline witch is the second oldest ship in the royal navy.
Built in 1914 she is a first world war light cruiser witch saw action at Jutland in 1916.
She had a flat out speed of 29 knots.That was bloody quick back then. Bloody awsome engines.
Cheers Mark.

[trabitom99]

I can see the top one in a 300.

It would make this tank engine in a Rover seem rather puny!

MPG of that ship engine ?

Tom

[jtbo]

Hi all.
I spent 11 years working on HMS Caroline witch is the second oldest ship in the royal navy.
Built in 1914 she is a first world war light cruiser witch saw action at Jutland in 1916.
She had a flat out speed of 29 knots.That was bloody quick back then. Bloody awsome engines.
Cheers Mark.

That ship is really well made, but unfortainely no longer steaming, hopefully they would restore it to move under it's own steam again someday.

I did read that next year it is planned to be decommissioned and will probably be museum ship then.

Tom, this site http://www.vincelewis.net/bigengine.html says:

burns up 1,660 gallons of crude oil every hour

So if you average a 50mph, then it would be just a hint more than 1.4?

edit: I got 0.03MPG, can't be that good?