Later models have a broader steel bilge plug about 3/8 inch thick with a
rubber o-ring pressed in around its circumference. The plug is pushed home
into the smooth (ie. unthreaded) bilge plug hole bore and then held in place
with a long thin bolt (sometimes a clip) that passes through two holes in
the opposite outboard ends of the bilge plug cylinder bore, passing though a
arch-shaped loop in the center of the bilge plug to hold it steady.
I dispensed with this whole affair and went with a simple steel-capped bung
plug seen at http://www.amphicar.net/library/plug.jpg. Tightening its
center nut expands its rubber outward, giving a nice firm seal. Mine's been
in service for 7 years with no sign of weakening. For more details, see:
> "Bilge Plug
> Some Amphis have a large brass bilge plug with a big O-ring around it,
> others have a small, thread-in type bilge plug."
> What O-ring?
> My '66 has the large brass plug with a large brass washer, but no o-ring.
> (Maybe Marc is referring to this brass washer as the o-ring?)
> Thx, Brian Davis
> Red '66