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Location: New Westminster, BC
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Re: OMC Saildrive Changeout to Modern 4cycle
Most manufacturers offer engines with 'saildrives' (the equivalent, conceptually, with the old OMC Zephyr setup) as opposed to standard gearbox, shaft, log and strut.
Changing over will likely involve some considerable glass work as the mounting base for whichever 'new' package you might choose will not mate with the base for the old Zephyr. The molded leg base will be available, but it will need to be glassed-in into the boat before installing the new motor and saildrive. btw, the engine bed mounts will be similarly un-matched, most likely.
Having said that, Beta Marine is known for taking the time and effort to create 'drop in' replacements for commonly used brands over the years.. whether or not they can deal with the old OMC situation is something you'll have to ask them.
If you're asking if another engine will mate with your OMC leg, I'd recommend against trying that, some of the major issues with these old engines was corrosion of the legs leading to cooling water issues with the whole package.
I think Bukh did offer a vertical crankshaft/saildrive unit that was standard on the Laser 28, but that will be the closest you'll find to the Zephyr.
1984 Fast/Nicholson 345 "FastForward"
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
Last edited by Faster; 01-17-2017 at 03:22 PM.