There are reed valves, which I removed for pictures sorry. They screw on the other side of those filters. Allow fuel/oil out, but nothing in.Not a dumb question at all!
The tubes leading to the reeds are of a precise diameter to allow just so much to escape. Since they are the same diameter both crankcases leak equally.
Wayne,
Yes, one motor can shut down and tilted up while underway with this set up.
I just lucked out while looking through some of my sailboat gear and found this old bronze & stainless turnbuckle with rotating joints at each end rather than ridged eyes or forks.
Very pleased about how that worked out.
Pays to keep old junk around around sometimes huh?
Boy, I like the idea of converting to fuel pump and using the pressure line as a fuel return line to the tank. This is testing my resolve to keep my engines as original as possible.
IN 1967 the government did testing in FLA a 40 hp OMC was used it had 40 % plus unburned fuel loss overboard the US gvt passed a law as a result of the testing requiring the outboard mfg to recirculate unburned fuel no overboard dump by 1969 so anything prior dumps fuel that can be recovered I did a test on a 58 fat fifty I had heard that a 6 gal tank was gone in 20 mins at idle or WOT at 1500 by my calculations it was true I plugged off the overboard dump and ran the scavenge into a container I calculated a very rough 55% unburned fuel loss
There is loss from the crankcase drains, and there is loss from the cylinders themselves–mixture mixing with exhaust. Are we talking both here, or only the drains?