I am in the process of repowering my new to me 1980 Clearwater Offshore Kat Ketch 33. Current power plant is a taken part, worked on by several people and never ran again Universal 5416.
I looked at the offereing from Yanmar but really liked the way everything that I needed to touch on a frequent basis was located on the front of the Beta and the east coast distributor is two hours up the road. Price wise they are pretty much the same within a couple boat dimes. Engine acces from the either side is limited on my boat.
So now I am puzzling through the options, do I need a 70 amp alternator or is the 40 sufficient? How about the serpentine belt? It's a $246.00 option that is required for the 70 amp alternator but simply an option for the stock 40 amp.
I think the serpentine belt will have less potential slippage since it should use an idler pulley and may result in a better bearing life for the alternator and water pumps.
Electrrical loads are pressurized water, refrigeration, lighting and basic instruments. I have two banks of house batteries and a battery reserved for starting the engine. I may add a/c down the road but that would be for use at the dock only so it shouldn't figure into the dc loads.
I like the b panel upgrade (temp and RPM) at $180 but don't think I need to go with a c panel (temp, volts and rpm) becasue I can monitor voltage on the power panel in the cabin.
Open to hear anyones thoughts and ideas on these options.