When I removed the “water inlet / crank seal” cap from
the bottom of the Martin 60, I’m totally confounded to
understand how the cooling water enters the powerhead.
I do find the cavity where return water dumps into the
exhaust.

It has a wobbler pump and it’s discharge line enters into
the forementioned cap, but there’s no hole in the
block underneath the cap for water to enter.

What am I missing?