riva 45 superamerica

Welcome to Yacht Forums.

The Cummins 8.3L, common rail, computerize, straight 6 cylinder, turbo and after-cooled engine was rated up to 650HP at one time.
Dam good engine.
I truly believe the engines installation makes a great difference on the owners satisfaction on these and most other engines.
If you can not reach a service point, IMO it is a bad install and not a fault of the engine.
If you are shopping for a yacht, please consider how you and/or a service tech can reach and service the power plants.
The 8.3L Cummins is a dam good engine. Maintenance points are all over it.

My point of view comes from the yacht management and service.
Sadly, I have not owned this power in my own boats.

Keep us up on what you are finding and looking for.

Agree with Capt Ralph , they all look and perform on test bed at the manufacturers and sure look good at static boat show stands .
I would go as far as saying 1/2 the ensuring customer satisfaction is from the instal .
This can be split into access to service, can you get around it = easily?
furthermore the whole propping , displacement of the thing .Yes I know the manufacturers sign them off in hull #1 .But toss in cruising stores , seasonal growth on top of a bit of collusion by both manufacturers and boat builder to achieve a headline grabbing set of performance figures in said hull #1 tests , then in the real world a bad instal can trash a good solid engine before the first 1000 hrs are ever reached .

So basically it’s over simplistic to call a base engine sat in its create good or dud.

It all depends …….Turn it around its not a bad engine , they all aren’t. They don’t start out bad.