Short Diesels?

[MikeHalloran]

I'm working for an engine dealer in New Orleans. We are trying to supply repower for a few smallish crew boats, and have run into a problem with two of them. The boats are aluminum, ~33 ft x 12 ft, and weigh ~10,000 lb.

The old engines were 8V-53s, which I'm guessing were rated a little above 200HP. Two per boat.

We've got inline sixes that are powerful enough, but they're too long to fit, by a cylinder or two. We've got turbo fours that will fit in the hole, but I don't think they're strong enough to get the boat up out of the water.

Scania makes an inline five that might fit; I'll check that next week.

Any other candidates come to mind?



Mike Halloran
Pembroke Pines, FL, USA

 

[MikeHalloran]

I almost forgot. These engines will get serious service, probably > 3600 hours/ year, and much of it at full speed if not full power.



Mike Halloran
Pembroke Pines, FL, USA

 

[itsmoked]

You have no V8 possibilities?

Keith Cress
kcress -

http://www.flaminsystems.com

 

[pauljohn]

Have you looked at Yanmar? They seem to be built well, are very reliable and around the size you are looking for. They are very popular with the small sailboat guys.

 

[MikeHalloran]

All the Yanmar fours at ~200HP are "Pleasure Duty". They wouldn't last a month with our customer.

There seems to be a 'hole' in the market. Nobody that I have found is making new ~8 liter Diesels in a V configuration... but a fair number of boats are coming up for repower that originally had 6V or 8V engines, and were essentially built around the engine, so six in a row won't go in.








Mike Halloran
Pembroke Pines, FL, USA

 

[pauljohn]

OK I see what you mean they seem to jump to 6 cyl. right at the 200 hp mark. The only other one I can think of right now is the volvo penta.

http://www.marinepowerservice.com/BoatingStore/browse_detail3.cfm/productID/23990.cfm

 

[chief]

Mike,
Why not stay with the 8V-53's. There are stil many engine shops that can supply you with a rebuild unit and spares. They are indestructible those Detroit engines.

Offshore Engineering&Design

 

[itsmoked]

chief that's a good idea. Then you have no other big issues to hassle with. You can charge less for more to your wallet and the customer will not have to even worry about anything going pear shaped in a conversion.

Keith Cress
kcress -

http://www.flaminsystems.com

 

[unclesyd]

Just trying to locate information on the Nissan Marine Diesels under Chrysler Nissan and as I understand it now it's Volvo Nissan.

I was involved in the replacement of some Cat 453's with the Nissan. This was done to get more power in the same foot print. As I recall there was a about a 60 Hp gain in the same foot print. The engines were for some shrimp boats for service in the Caribbean. This is considered very hard duty on any engine. Two boats returned to the states after about 5 years with both engines in good shape. One had to under go a short overhaul because of a busted ring.
The Nissan in this service gave very good service without tender loving care.

There used to be ET member that had a nice website all about marine power.

 

[MikeHalloran]

The boats are being completely re-done from a bare hull, so they would need new engines anyway.

The 8V-53s may have been recycled already, or cut up; I don't know what happened to them.



Mike Halloran
Pembroke Pines, FL, USA

 

[catserveng]

There was a small workboat recently converted in California with the same problem, I worked for the CAT dealer then and we didn't have an engine that would fit in the space, the customer found a marinized Duramax engine.

Try this link for more info,

http://www.dieselpowermag.com/features/trucks/0706dp_marnie_diesel_engines/pictures.html

Hope that helps

 

[gerhardl]

http://www.rolls-royce.com/marine/products/diesel_gas_turbine/default.jsp

 

[ivymike]

what's the length of those engines?

 

[patdaly]

Mike, how about the Cummins QSB4.5?

 

[MikeHalloran]

The Deere 4.5l four fits easily. It's about 31" from belt guard to bellhousing flange. The Cummins QSM 4.5 is roughly the same size, and comes in about the same range of ratings. For _this_ customer, I'd only sell the fours with the lowest rating, i.e. ~110HP, which I don't think is enough for the boat.

The Deere 8.1l six doesn't fit, by about a cylinder.







Mike Halloran
Pembroke Pines, FL, USA

 

[ivymike]

what about a 5.9L cummins? too long?

 

[MikeHalloran]

I'm guessing it is, but I'll check.



Mike Halloran
Pembroke Pines, FL, USA

 

[MikeHalloran]

The 6BT5.9M might fit, if the customer didn't mind removing the engine to change the alternator belt. I'm guessing they'd mind. I would.





Mike Halloran
Pembroke Pines, FL, USA

 

[romke]

you might take a look here:

http://www.steyr-motors.com/products/products.htm

 

[MikeHalloran]

Hoo boy, those little sixes spin fast. I bet they make a big mess when they blow up.

I'll look at them in more detail.





Mike Halloran
Pembroke Pines, FL, USA