I am not sure Uncle Vic would approve...

[Carl]

https://boatdiesel.com/News/Volvo-Penta ... -Penta.cfm

[David Davidson]

In my experience of using both D4s and D6s in Superyacht tenders they are good motors but let down by bad electronics. In one year we had to replace 3 complete (twin) throttle quadrants and ECUs from 4 engines. Volvo simply could not find the problems.

After those tenders we chose Steyr engines for the replacements. Had similar problems with those, but less frequent.

....and that’s why I chose good old fashioned mechanical Yanmars for my B31 rebuild last year!!!

[Tony Meola]

Volvo parts are not cheap. I guess they figured the fuel savings using 4 cylinder Volvo made up for the added parts expense.

[Bruce]

The 31 I repowered with D4's turned out to be a battle wagon and a very nice install, but 3 computers per engine, like has been mentioned, they were replaced multiple times.

While this was years ago, I hope they have the computer issue figured out or Tropic is in for it.

[Yannis]

It says they chose them because reliability was their primary concern...

If I want reliability I go Japanese. Every time.

[Carl]

Just funny how they went from simple old tech screaming 4cyl Detroit Diesels to Volvo's.

In my opinion Volvo marine motors have been synonymous with over-engineered and over priced parts.

I'm sure they did their homework...

[David Davidson]

On paper they look good. They're modern, and the Volvo brand is strong. Maybe someone in an office somewhere made the decision!

[saburke17]

i had a TAMD41P 4 banger and that thing would shake the boat apart at idle, when i first bought her i freaked out and thought something was wrong. 200 rps higher and she purred like kitten

[Dug]

Well, many of us will get to see first hand how it is working come this August. I am guessing UV would not approve. But I am looking forward to seeing for myself!

Dug

[Carl]

While I am not sure UV would approve...I have a feeling he would not hold back from jumping on a quieter, quicker 31 over a screaming DD.

Heck, they make break down and cost a bundle to get them back up and running when parts come in...but that would not be his problem.