Re: Johnson HD-25 "outboard or anchor?"

[Buccaneer]

Oltimer, did you machine the bottom crankcase hole
with a square plunge, or machine a "half round"
groove for the O-ring to fit in? I’d have to look again,
but I don’t think the bottom drain cap would keep
the o-ring in place, as I think the hole is too big.
What’s the thought with an o-ring just on the
bottom, and not the top of the crankcase?
Thanks!

Prepare to be boarded!