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The FM OP was heavily used in WW2 on submarines which worked well as far as the Navy was concerned.In fact the Navy is about the only customer for thee engines for emergency diesel generators on nuclear powered ship. After the war FM tried to break into the locomotive market and did well for...

Years ago Boston Towboat swore by DC 9 tires they got for free from Logan Airport. McAllister used fabricated fenders made from cut up tires thread on to a cable. In the last 20 years though new harbor tugs have been built with D shaped fenders made for the purpose attached along the whole...

Propylene glycol is the stuff they use to protect fresh water systems in yachts and RV's during winter layup and we use to run it through the raw water system of the engine with it puking on the ground for the same reason. Didn't hurt the cats any. As for running straight water, locomotives run...

My experience with a 40 foot extension was that it actually reduced the back-pressure (chimney effect) but it is a double wall pipe without guy wires. You probably should use individual pipes for each engine or you could get cold back-flow down the walls.

How about the engine maintenance manual. If you don't have one the nearest dealer will be glad to sell you one.

I thought that the object of the tuned exhaust was to plug the exhaust port just as the intake port so that all that mixture couldn't escape before the exhaust ports closed. That's the big advantage of the uniflow design.

Isn't that what a turbocharger does, recoup waste energy from the exhaust?

Its a connecting rod for between wheels of a steam locomotive. The part in the ground is the link connection to the next axle. The rods have to be articulated to allow the wheels to move up and down.

Sounds like what you did is what they call in tug boats a "dead push" as in pushing against a bridge abutment to load up the engines to full power, and since the propeller is in a stalled condition the engine will load up faster at a lower rpm than running free. However, since tugs are way...

What I mean is that if you run the engine rpm up with no load you get a high exhaust temperature most probably because of low air volume. You should be having black exhaust. A turbo surges because its blocked downstream. Its seems you checked everything but the exhaust back pressure. Maybe some...

My first guess is you are not getting enough airflow if you are getting this result with no load. Did you check to see if anyone uncapped the exhaust pipe.

I found it. Try Carstens "Railfan & Railroad" April 2010 issue, "The Electro Motive 645 Diesel Engine" by Preston Cook. You won't get any better pictures than this unless you get into the plant itself.

Here's all I could find on short notice. Its a EMD sales brochure showing an exploded view of the pieces that are welded to form the crankcase. Preston Cook wrote an article about how the crankcases are fabricated about a year ago in one of the rail fan magazines and of course it has lots of...

If you ran the Audi and Ferrari engines at their rated speeds and power they wouldn't last very long either. Mostly they are stuck in traffic or if running under 100 mph probaly don't exceed 100 hp. or run between 2000 and 3000 rpm. So in average conditions the piston speed is at a reasonable rate.

I seem to remember one of the components is the ash from burning coal in a boiler is either silicon carbide or aluminum oxide either one is used in sand paper and if it gets into a diesel it make short work of it. Now if you go through the trouble to get the contaminants out of the coal you...

If it is the lash adjusters clicking away then they are no longer pumping up because they plugged up or just jammed. Best to replace them. There is something called a leak down test that is performed on a test machine that collapses a full lash adjuster. On some types of engines too fast as well...

Electric transmission for propulsion has been around for a long time. Early steam turbines need to turn at high rpm while the propeller has to turn at a much lower speed. Before double reduction gearing the US Navy used steam electric propulsion on battleships built during the late WW 1 era and...

NAVISTAR just announced an agreement to further develop the OPOC engine.

The purpose of the soak back pumps is two fold: 1. to pre-lube the turbo as you start up and 2. the soak back function in that it should start as the engine stops to remove residual heat from the turbo bearings. Timing out after 6 minutes sounds right. If you pre-lube the engine before starting...

1. I've seen this - reversed pressure readings - on several other tanks. Usually the gages are broken and replaced with a plug. Its possible the gages are miss labeled. You have to open the tank to check that out and that's why it usually isn't done. They are also very cheap gages. You could...