Diesel Mercs ????

[mr fun]

whats the scoop on these units ??? do they carry more load? do they burn less gph? what is the expectancy of hrs of service? fun out

[Capt.Insane-o]

A diesel optiflop. What could go wrong there.

[powerabout]

I am surprised they went down the diesel route, kerosene works much better once you inject it.

[mach351]

As far as I know, they aren’t really a “diesel” engine. They are a spark assisted engine that CAN run on diesel, or other fuels. Kinda like the old “multifuel” cummins that was in the old military deuce and a half. I don’t think they were ever designed to carry more load or be more efficient. It’s just an opti that has the capability of running fuels like jet A for the military and such.....mostly for a safety factor.

[powerabout]

As far as I know, they aren’t really a “diesel” engine. They are a spark assisted engine that CAN run on diesel, or other fuels. Kinda like the old “multifuel” cummins that was in the old military deuce and a half. I don’t think they were ever designed to carry more load or be more efficient. It’s just an opti that has the capability of running fuels like jet A for the military and such.....mostly for a safety factor.

yep same as an e-tec

[Davidlake]

My recollections is that the US military demanded diesel after some boat fires.

[powerabout]

My recollections is that the US military demanded diesel after some boat fires.

years ago the military wanted to go down to only carrying 2 fuel types. They said a gallon of gas delivered to the front cost $10 USD

[nitro_rat]

Kinda like the old “multifuel” cummins that was in the old military deuce and a half.

The “multifuel” engine was made by Continental who also manufactured the old gasser engines in the deuce and 5-ton. The later 5-tons had a NTC250 cummins but it was diesel only.

The Continental multifuel engine was a diesel cycle engine with a fuel density controller that varied the amount of fuel injected based on its specific gravity...

[RSWORDS]

Played with one in ATL. It's a spark ignition fired, opti with lower compression, GM glow plugs and a different tune. Was designed to meet US Navy specs for on board engines. Other then the smell you cant tell it's a diesel when running. Only rated at 175 HP.

It's cool but nothing fancy.

[300x Stoker]

[mr fun]

after letting go of my last offshore fat boat diesel powered, looking at buying a older center console that needs to be re-powered, something 30' plus that need new power. I like the idea of trailering to the keys instead if running down. Suzuki 350's seem to be the price leader, and now that they are owned by Yanmar, I feel pretty confindant they can serve my requirements. 700hp for 2 should get the job done.