Toblin,

I hate to disappoint you but I have worked on super tankers engines in the Middle East. A piston and for sure a liner can not be removed from a running engine. The piston is connected to the cross head rod and that to the connecting rod. Both of these rods are connected together to the crankshaft (not the camshaft since these engines don't have camshafts-usually the valve and injector in each cylinder are hydraulicly operated). As long as the engine is running you can not remove any moving part from the engine. I doubt that you could even run the engine with a piston and connecting rod removed. The out of balance forces would tear the engine apart. You certainly couldn't remove the liner since it is part of the cooling system and would allow all the coolant to run into the crankcase.

on a couple other forums. I asked there, and I'll ask again: Does anyone have a .wav or .mp3 of one of those things running. I'd love to know what they sound like.

__________________
Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 400,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 22,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.

ran a check on the post that states that ships are 103 times more efficient that trucks?

seem high to me. also the ship runs a lot slower, so a comparason per hour of operation is a little too simple for a comparison of actual work done.

tom w

__________________
[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

Used for pile driving driving.

http://www.berminghammer.com/hammer.html

over 1/2 million ft. pounds @ 102 rpm

__________________
Matt (SD,CA)

1984 300SD.. White/Chrome Bunts..Green

1997 2500 Dodge Ram 5.9 Cummins 12 Valve 36 PSI of Boost = 400+hp & 800+tQ .. ..Greenspeed

2004 Dodge Ram 2500 4x4 Quad Cab Cummins 5.9 H.O "596hp/1225tq" 6 spd. Man. Leather Heated seats/Loaded..Flame Red....GREENSPEED

Global warming...Doing my part, Smokin da hippies..

Fight the good fight!......

Sorry kip, but I'm sticking to my post. They showed how the changing of a piston is done. With the entire engine off, they could disengage the piston stem from the crankshaft and then restart the engine. The head for that piston (each piston has it own independent head) is then removed and access to the piston is made. Each cylinder has an independent fuel, lubrication and cooling system. All the cylinders do share a common crankshaft.

With this engine, the engineers have the capability to selectively shut down cylinders for maintenance and/or economy reasons.

Keep a look out on the History Channel. I'm sure this episode will be repeated. It was aired 1/4/06.


Peace.

__________________
Toblin

'79 300D, "Liesel von Diesel", 235K

I kid proofed the house....but they still get in

FWIW....It cost about $500USD to ship a 40' container from NYC to Hong Kong.

for the same $400. by truck, you're lucky if that container gets from NYC to Hartford, CT.

__________________
'87 924S
'81 280SEL

Sold ->

81 300SD -
93 300E w/ 3.2
85 300D-
79 300SD
82 300CD
83 300CD - CA
87 190E 5 spd
87 Porsche 924S

"..I'll take a simple "C" to "G" and feel brand new about it..."

Pearce,

I understood from your original post that you thought that the piston, rod, liner, etc. could be removed while the engine was running. You can, as I am sure you saw, easily walk around inside these engines. I have been inside many engines up to 40K hp. But unless you are very fast you can not remove the head, piston, cross head rod, connecting rod, or liner while the engine is operating. One might well be able to run the engine once these comonents are removed but not I don't believe that they can be removed while under way.

I worked on supply boats that used Fairbanks Morse 10 cyl. OP (opposed piston) engines. If we had problems with one cylinder we could shut off the fuel to that cyl. and continue on. All the super tanker engines I worked on were stopped at the time of repairs. I know that each cyl. is a seperate system and the the fuel, the valve, and perhaps the cooling water can be shut off independently but I think that is about as far as one can go doing repairs while the engine is under way.

I saw part of the program that you mentioned but unfortunately did not see the part about the engine repairs.

I've done the same thing, and each time new people see it so I guess it's all right, all in all.

Cool link. I especially like the steps leading down into the crankcase. Oh man, how many times have I wanted that feature myself....

__________________
1986 300SDL, 362K
1984 300D, 138K

"honey i shrank myself.... so i could walk down inside my mb diesel engine"

tom w

__________________
[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

If you were putting out as much HP per cylinder as these engines, you wouldn't need stairs to see the crankcase!!!