Centaur re-engine: Beta or Nanni?

I re-engined my last boat with a Beta. Good basic motor but same problem as others with exchanger, also a lot of belt wear and was wondering if they have solved the latter issue?

We got through belts quickly, so I bought the parts to convert to a ribbed belt. That hardly wears at all, and hasn't needed to be adjusted now since installing 3 years ago.
 
A friend installed a Beta 20 a year ago and it came with the wide belts as standard.I wish they had done the same with mine six years before.Having said that I get belt dust but the belts seem to last reasonably well.
 
Update: I had almost got to the dealers when I had a crisis of confidence, given the current economic climate...

I have now decided to keep Sevenem outboard powered as she has been since the gearbox packed in last 'summer.'

Removing the rusty lump was truly cathartic, and if I can ever get rid of all the muck in the engine bay I'll have gained a cavernous locker for the dinghy's o/b and the bike!

It just remains to pop off the propeller and she'll sail faster too. Fortunately my shaft seal retains the propeller shaft.

Of course most of this is just me trying to convince myself of the benefits of the nil-cost option, but until the economy improves it's the least risky way to keep afloat, in both senses of the term.

I have however earmarked the options for when I do buy a new inboard: Bigger alternator & polyV belts plus a better heat exchanger - maybe a Nanni...
 
Just to flog this dead horse a little bit more....

If your lottery number comes in and you decide to buy a Beta, go for the Poly Vee belts (as suggested) plus the high rise exhaust (if you have room).

I spied a new engine last week and note that the heat exchanger has been redesigned. It will still need poking out every year but the job should be less tricky.
 
Just read your post

I re -engined my centaur last year for less then 2k...France Belgium holland n several hundred other miles on the east coast couldn't be more pleased.
Penta 2003 28 hp recon.. previous Md2b rusty unreliable and noisy..28hp works fantastic loads of power..n no it's not over powered..just right..
Really enjoyable job..bit messy but not rocket science. The workshop I got the engine from had 4 on the shelf !
Completely transformed the boat
 
If you do have to replace the MD2B as I had to on my Centurion 32, the only engine that I could find to fit was the Beta. In this I was guided by a German Centurion owner who warned me of this difficulty he had found when re-engining. He too had had to go for the Beta. To go back to the thread I think the most important points are:will it fit; how easy to service;how much alteration to bearers;how much alteration to stern gear and exhaust.
Tranona's[/Quote)My present restoration project boat is a Centurion 32 that still has the original MD2B. So far, this is still giving good service. However, when the time comes and it starts giving trouble, the decision to replace with a new engine will not be a difficult one.

Good luck with your new Beta. If I were you I'd also try to locate a Kubota agent and source my spares from there; chances are that they will not be at 'marine ' prices.[/QUOTE]
 
Last edited:
Top