I have one branded as an Elto, and a identical 12hp Buccanner for parts. Seem to be a cross between a 15hp Johnson and a the later 18hp.
I have seen 2 now with cracked flywheel hubs at the key way, so be careful mounting the flywheel.
Frank; -could u expand some on the ‘wedge head’ p/h ?
Here’s an exploded view of a 12D10 powerhead and you can see the one piece cylinder and head is wedge shaped. The later models were a totally different design and had a removable cylinder head.
Yes I can see much different than mine. My engine is very similar to the 15 and the 18s even the l/u is seems Identical to the 18. Maybe they would interchange. Very interesting.
Mumbles; -thanx for that. Very few post war OMCs with integral heads. Even the OK20 had detachable heads,
although the 9.8 twins did not, albeit the 15" KR and fire pump power head did .
But no Mercs in their 1st 50 yrs . Food for thought :geek:
It’s too bad Johnson waited until the last two years of production (’49-’50) of their OK model before adapting cylinder heads to them. Of the OK models I own, 60, 75, 15 and 20, I prefer the design and appearance of the OK 20 model. The poor KA,KS and KD models never did get heads on them, just a spark plug location change.