I was wondering if anyone had ever toyed with the idea of taking an old 12v out of a dodge and put it in a boat. Now I know it wouldn't be that practical or fast because its heavy, but I think it would be awesome! It would do a heck of a job pulling a skier up. I've seen the marine engines that Cummins makes but it would be easier for me to hop up an engine that I've worked on before. I just thought it would be cool.

Eric

 

It would be way cool. My buddy has a crashed '89 and I've been watching for the proper boat to come around to slip the Cummins into. I also have a VERY low miles Mercedes diesel to do it with, but it's only a 240.

Deep V hull, keel cooled, dry stack, shaft drive. Maybe a lobster boat style. Trailerable for the Sea of Cortez. One of these days.

Wetspirit

 

I think the 5.9 WAS used in marine applications. I hear people using "marine headgaskets" all the time.

 

I don't know why you'd need a "marine" head gasket unless you were running salt water through the block. Ouch. A fresh water setup would be a LOT better. A keel cooler does away with the salt water pump and the heat exchanger. But requires a dry stack.

Is the marine head gasket for raw water cooling?

Wetspirit

 

I think the ideal boat to put the Cummins in, just for the "cool" factor, is an older Baja or something. If they can put twin 454's in those things, then I think it could hold the weight of one of these engines. As for your question, wetspirit, I'm not sure if the marine gasket is for raw water cooling.

 

we got boarded by coast guards this summer when fishing in florida and they had a boat with what sounded like a cummins in it, when they took off it rolled some black smoke out of a hole in the side....as bummed as i was for not being able to fish for an hour because they were being jerks, it mad my day sooo much better when it rolled the coal






it would be awesome to put one on one of those fan boats

 

IIRC, the marine headgasket can withstand abuse better and is slightly thicker than a normal headgasket.

 

I'm in college as of right now and there is a marine 5.9 in the shop painted white. Has all the goodies on it.

 

They go in boats all the time. If you use a heat exchanger instead of using raw water (the stuff outside the hull) then you could pretty much just put it right in. I'm not sure how good it would be for skiing. Usually you would use the torque to throw a big prop fairly slowly like tugs and commercial fishing boats.

 

I'm in the CG. Depending what boat did your boarding it had a Volvo, a MAN, a Detroit, a Cat or a Fairbanks Morse. We have very few that have their primary movers as Cummins. We do use them alot for generators though.

 

when I was up in Maine a couple months ago to purchase a couple stationary engines, the guy I bought them from asked me how many million miles the little 'B' in my truck had He said every lobster boat worth its weight is running a 5.9. He said they just go and go and go...yeah, I know

 

Do you remember how big the boat was roughly? Was it painted white or was it aluminum?

Reason I ask is that some of the smaller vessels we have are equipped with either the ISC or the 6CT.

 

Is the heat exchanger the only thing different from the marine version of the 5.9, other than it being white in color?

 

6BTA5.9M1orM2meant marine 1 or 2 for keel cooler or jacket water heat exchanger mounted on the front of the engine.

lots of cummins marine engines in navy and coastie boats, and some pleasure boats as well. as far as weight, it is alot lighter that the boats with 3208 cats in them. so not too much a factor.

 

They are very common in fishing boats on the Chesapeake Bay and DE/MD coast. I could not think of a much better motor for a medium-sized fishing boat.