Vote: best brand of inboard propulsion engine...

THe engine you are looking for is the 3.9 Cummins hp 100 t0 150 old mech. pump lots of them out ther rebuild and new, is 4 cyl from the older 12 valve 5.9 so lots of parts.

 

Huh ????? Ive got a Cummins diesel with 10,000 hours of seawater,hard marine use. . Indestructible. Marine diesel engines suffer from poor ownership...not poor design.

 

He's saying they make a sport version, Michael, which extracts too much HP. Yes, Cummins are good engines. I don't want to get into this too much without reading all the posts but JD doesn't yet have the infrastructure to be a good alternative, IMO. I had a friend that bought one from Cascade, in Seattle. He then said he needed a front pulley group for a hydraulic pump or washdown, and they said "Huh?" That would never happen with Cat, Volvo, Cummins, etc.. It's already been done with them, with a part number and a location of the nearest unit - ("It'll be at your boat on Monday")

 

Whats interesting is that the original poster didn't list Cat.....MTU or Cummins... all quality marine grade engines.

As for John Deer, people always speak highly of the engines. Im not
familiar with the marinization of John Deer. When talking service, its almost always the components like heat exchangers, exhaust and pumps on any engine that needs the most service per hour run .

 

Detroit rulz

Cheap parts
easy fitting
basic design
great sound

 

Quatsino - take a look at the Beta engines (Kubotas). The 75 is naturally aspirated and the 90 used to be but I think they had to add a turbo to meet air quality issues and it is now 105.

http://www.betamarinenc.com/bv3300.htm

 

For folks that can not see that much difference between brand A and brand B diesel, I suggest you go to the parts source and price common items.

Water pump, cylinder head , re build kit.

Some will be 500% more than others.

FF

 

I see that John Deere is winning the pole. Which JD engine and why?
I presume it will be 6068 but which version?

 

Many folks like Deere because the engines can be obtained at the JD farm store , instead of the "JD marine folks" at very good prices.

At least 2x a year the farm folks will offer factory warenteed rebuilt , with NO core required !!!


This is a fantastic deal .

Keel cooled , dry stack requires no "marine" conversion , just a used TD to be underway at 1/3 the cost of the"marine" guys.

Aftermarket wet exhaust manifolds are avialable if needed for a yachtty wet exhaust.

FF

 

can you add Cummins to this poll, By far the biggest independent eng manufacturer and by the way you left out Cat MWM Man and a whole raft of real engines that are not hand grenade rated

 

yes I like Deere too, but their install dwgs are woeful and they have tractor eng mt positions low on bloc which lifts the engine so high makes it a ******* to fit under e/r sole

 

have a look at gardner, parts are still available, no make of engine can match them for quality and fuel economy. they were so good they put themselves out of business. the only parts ever required are filters. a trawler i used to go out on ran a 6 cyl gardner for 48 years before it was rebuilt. 60,000 hours plus is not uncommon.

 

My dear Boy
I was working on Gardeners before you were a gleam in your Dads eye
they are Passe. old hat , power to weight abysmal
So long Lister, Lister Blackstone, Kelvin, Ruston, Gleniffer, all great in their day
modern day engines are better, stronger and more efficient

 

I would suggest Perkins which is the same as the small Cats.

 

Because the poll limited the order of preference _ I would have chosen John Deere reluctantly.
Otherwise # Gardenor
# Isuzu
NON turbos good output at around -2,000 RPM