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laying an electrical wire on a fishing boat is a bad idea. Proper marine construction would call for running the conduit under deck and up through a penetration in the way of the motor. Hydraulic systems have more components and require more expertise to operate than finding a bad wire or...

Lube oil scavenging pump is bad.

Obviously the filtering system is going to be relevant to this question, but after running some trials on 20 cylinder 645s, we found that after 8000 hours on the lube oil we had significantly higher usage of filters, even though the oil samples showed all elements within proper parameters after...

Thanks for all the valuable info. The reason that I wanted to do this is because the applications for the engines now dont require nearly the kw that the system was designed for. I would even doubt that with the low loads that the engine is producing enough heat in the exhaust to even make...

sorry, I wasnt very clear on that point. I only run one generator at a time, and still only get 50% load on that one.

I have a set of Detroit 8V71 Turbo Engines that run at a max of 50% of capacity for most of their lives. This is an electrical generating application. Obviously, the carbon build up eats the turbo seals long before they should, requiring a lot of maintenance. Have any of you done the...

Paul John, I have most seen what you have described, except for these exceptions white = steam yellow = lube oil orange = diesel oil black = heavy fuel

I have never actually measured the pressure, but I have seen a significant change in exhaust temps in diesel engines merely by changing the direction of air so that it goes to another part of the engine room as opposed to right by the air intakes. This is of course on a system where the engines...

another problem may be that the door is bent. Underway you can fashion a dog by taking a piece of angle iron and drilling a hole it and welding a nut on. Weld the angle iron by the edge of the door on the boiler housing, taking car not to get it so hot that the pressure in the boiler chamber...

Personally I like a zinc primer covered by a two-part epoxy, especially if the whole hull is going to be blasted to white metal via grit. Here is the thing to remember: Zinc primers will not perform well if there is moisture or surface rust on the steel. As Mshimko said, the key is a clean...

EMD's have a positive displacement supply pump which shouldnt be affected much, but you may have to keep a close eye on your injectors to watch for a drop in the efficiency happening before the usual 8000 hours. Just keep your lube oil in good condition and have it tested every month to look...

Hey Frankie, what crankcase vacuum are you running on your EMD Engines?

Thanks for all the help you guys, and I will certainly let you know what I find out regarding this project. As stated before, the challenge will be to get a chiller that is efficient enough that I dont lose my fuel savings. to answer the last few questions. The engines in question are EMD...

Paul, the seachest suction is about 20 feet below the surface, so yes, I COULD rig something up, the thing is I dont want to introduce any sea water systems to the engine room. Right now, the only sea water system on the whole boat is the fire pump, and I am quite happy to keep it that way. I...

good point. allegedly, it will be 1% less consumption. I have a set of fuel oil meters that measure flow and temperature, factoring in the temperature when figuring the flow in Gallons per minute. There is a meter on the supply and the return, so consumption is the difference between the two...

Mshinko, first of all that was berkshires post, and I am a little familiar with this, but am certainly not a expert, but I will tell you what I do know, or at least what I have been told. Antifoulings used to be a copper base type coating. Copper is actually a poison that leeches in small...

Mike, exactly the issue I am facing with a water cooled system. Not enough delta T to really do me any good. Besides, my vessels have keel coolers and the last thing I want to do is introduce a new salt water cooling system. We even considered running the supply piping through one of the...

International Paint makes a product called Interline 925 that is an excellent high solids Epoxy Coating. I cant seem to find any data on it as to service temperature. The only problem with it is that the steel must be grit blasted to near white condition before application, and and surface...

Was told recently by an engine manufacturer that by decreasing the fuel oil temperature at the fuel oil rail to my engines by 10 degrees F will give me approximately a 1% increase in efficiency. Has anyone heard of this? If so, do you know where i might be able to find a 110vac operated...

Andy, in response to your post about the blisters, that could have been where the paint wasn't touched up properly after anode installation. The steel being intact under the blisters just means the anodes were doing their job and preventing corrosion of the hull. As zinc anodes wear away...