Best 10-20hp Diesel for 24-28 Sailboat?

I have been looking at some older pre-owned sailboats in the 24 to 28, possibly up to 30ft range.
Moderate to heavy displacement, such as Cape Dory, are what I prefer.
Most seem to have Volvo Pentas, with Universal and some Betas also present.
What do you all prefer with the following points in mind:
1. Engineering Quality
2. Reliability
3. Serviceability by owner in the normally tight confines of engine
compartments.
4. Efficiency
5. Parts cost & availability on US
East Coast, elsewhere.
6. Availability of knowledgeable
mechanics if and when needed.
7. Standard features.
8. Available options.
9. Vibration & Noise.
10. Transmission
I am looking forward to your replies.
Any links to previous threads would be appreciated.

 

Hi,
If it were me, I would choose (in order) BETA, Universal, then Volvo.
However ALL of them are great engines and you cannot go wrong. Beta's are known for the serviceability access, Universal's are usually large blocks (for their size - lower HP per litre = robust), and Volvo's have been around forever, parts will be available but expensive. You may be putting too much thought into this. Just buy either of them and go sailing. Enjoy your sailing.

 

Universal and Beta are both based on Kubota blocks. Spare parts from the tractor dealer, only the specific marine ones from the marinizer.
With Volvo Penta it depends on age and power if you get a real Volvo or a Perkins from Japan, China or India.
The more important thing is the motors condition. Marine engines corrode in time regardless of actual usage. New engine better than old engine.

 

Thanks both of you. I knew Beta used Kubota blocks but not that Universal did.
Did not know some, I presume newer (?) Volvos where Asian made.
The boats I'm most interested in are primarily Cape Dories and similar ones.
Most within my price range have the Volvos.
What years are European vs. Asian?
Thanks again and have a good night.
Tim G.

 

Boats of that vintage have MD2, MD7, MD11. Those are all old Volvos designed and made in Sweden. Most were raw water cooled their entire life with considerable corrosion on the inside. Consumables are available, some spare parts only as sh. Actual condition is the deciding factor. A pampered fresh water boat with an MD is better then a neglected Florida one with a Kubota.

Please do not think that "asian made" Volvos are less desirable. They are made there just for cost reasons under good QC. Just think about them as Iphones.

 

Thanks. Do they empower the cape dory 28 with Universal or Beta because of the engine mount spacing.
I would much rather not have to repower ($$$$!), but I have a friend who is a highly accomplished mechanic and machiinist. Thing would be getting to boat to do job. I'm 3-4 hundred miles from prospective boats.