Ok, here's what I'm about to order (with the up-coming holidays, special order delays and international shipping
probably won't receive the parts
for a month):
Forespar OEM SmartValve Thru-Hull 1 1/4" to the Forespar T-150 strainer, which will be reduced down for the 1" engine
hose. BUT to fit in my 5 1/2" high bilge I will need to mount the T-150 strainer at approximately a 60-degree slope. When the boat is flat I am confident that the entire bowl will be below the top of the outlet port in the T-housing, so no air should be trapped in the bowl. The seacock will be located well under the water
line (less than a foot from the side of the keel) and when opened the water flooding in should force out any air bubbles in the bowl.
However, when the boat is heeling to port, the angle of the strainer will probably move to near horizontal -- meaning that any air bubbles that make it through the thru-hull could accumulate in the bowl to the extent it is "tipped" above the top of the outlet port. While this will diminish the amount of contact with the screen
in the strainer, I don't see how it should diminish the water flow. And we make it a rule
not to run the engine if the boat is heeling over 15 degrees -- recognizing that an emergency
situation could trump this rule
Clearly not optimal, but does this seem like a sane set-up? The Yanmar's water cooling
system overall should be tight and powerful when we put it all back together -- rebuilt seawater pump, all new hoses with new t-bolts or AWAB clamps, freshly serviced inline SeaFrost condenser with no calcification to hinder flow. Ya think this should be able to deal with any air bubbles that collect in the strainer? See any other issues with the plan?