New engine considerations for 2017

[Rustic Charm]

I'm planning on re-powering next winter (which for us is May through to September). Finally getting rid of the expensive green monster (VP 2003T).

I've narrowed my search down and now pretty determined to go with a Kuboto based engine.

Yanmar - seems to have expensive parts and was overall more expensive.
Vetus - similar concerns about parts and some concerns around mechanical issues.

Today I discovered I have a Nanni supplier in my own city and they gave me a pretty good price on a Nanni 50 and a competitive warranty.

So, I'm pretty much deciding on the red Beta or blue Nanni.

Anyone have any concerns about Nanni?

[shakey doug]

Kubota have a very good reputation when it comes to longevity & reliability, base parts are plentiful & reasonably priced it is purpose built marine parts like most engines that are the killer. I guess your local converter would be Alf Hutton Glasgow engineering. There are couple more that market a good product, Diecon engineering Brisbane and Witchard [ WM ] marine Sydney.

[Rustic Charm]

Originally Posted by shakey doug

Kubota have a very good reputation when it comes to longevity & reliability, base parts are plentiful & reasonably priced it is purpose built marine parts like most engines that are the killer. I guess your local converter would be Alf Hutton Glasgow engineering. There are couple more that market a good product, Diecon engineering Brisbane and Witchard [ WM ] marine Sydney.

Yes, it's Glascow Engineering who supply locally. But they don't do the marinizing. That's done by Nanni, in France I think. I got price from WM as well. But, it seems to me that both Beta and Nanni have the best warranties. And I believe Kubota's warranty does not extend to WM engines?

[shakey doug]

After I posted I reread your post reaching for the edit button as your post popped up they had a stand at Ag fest this year.


Cheers, Back to the footy.

[Reefmagnet]

Another vote for the Kubota for the engine. They're great engines and you can buy most of the spares from your local Kubota tractor dealer for less than the "marine" equivalents. I installed a new Betmarine engine into our previous boat and aside from the well known belt dust issue for this particular configuration it was a great setup. One piece of advice I would give is make sure your consumable parts are available from third parties. For example, my Mitsubishi based Sole marinised engine uses a custom water pump">raw water pump meaning the impellers and gaskets are only available from Sole. This makes them expensive and a PITA to get, especially when urgent as Sole dealers aren't exactly thick on the ground in Oz.

[chicky]

I've just had my Nanni 4.150he clap out with an overly smoky exhaust after a mere 370 hours. Admittedly over ten years. Instead of rebuilding the engine or getting a new one I accepted advice just to buy a new Kubota and add on the Nanni marinising bits from the old engine. It was price effective in my view. Sea trials of new engine went very well yesterday. Can't pin down problem with first engine. I do have a Gori overdrive prop that I have used a bit in overdrive which adds 20 percent load. Does anyone have thoughts about overloading with an overdrive prop? Cheers.

[boeing1]

another vote for the Beta,

[SeaKing]

I see Beta has a saildrive also, I would look into that when my need to repower comes.

[bsurvey]

Kubota are definitely good blocks. have you considered beta engines

[vtomanov]

Marine diesel engine supplier for inboard marine diesel engines for boats

I'm considering this engines

[Rex Delay]

Originally Posted by chicky

I've just had my Nanni 4.150he clap out with an overly smoky exhaust after a mere 370 hours. Admittedly over ten years. Instead of rebuilding the engine or getting a new one I accepted advice just to buy a new Kubota and add on the Nanni marinising bits from the old engine. It was price effective in my view. Sea trials of new engine went very well yesterday. Can't pin down problem with first engine. I do have a Gori overdrive prop that I have used a bit in overdrive which adds 20 percent load. Does anyone have thoughts about overloading with an overdrive prop? Cheers.

If the engine cannot run at full rated RPM, you are lugging it and warranty is void.

[Rex Delay]

P.S. I really like my Kubota. Marinized by local mechanic. Very happy after 5 yrs and 500 hours.

[chicky]

Thanks Rex. Yes the Kubota has a fabulous rep and I'm happy with it. I'm also generally happy with the Nanni marinization although there have been a few issues like a cracked heat exchanger stack. But can't figure out why my engine should go smoky after so little actual use.

[Rex Delay]

If the prop is over-pitched, yes you will get great speed at low rpm. My boat would do 8.5 knots at 2000 rpm. Anything over 2000 it would quickly overheat as it was massively overpitched. It was quickly killing the engine. Re-pitched to proper spec and now only do 6 knots but engine happy at any rpm.

[chicky]

Yep. A new accurate temp gushed goes in today. And a new policy of nothing above 1800 rpm in overdrive.