Reply To: 1939 3HP ELTO / EVINRUDE HANDITWIN

[minimoto]

hi tubs
thank you once again !
I have stripped the lower unit which splits into four pieces x2 are the top and bottom cavity plate which houses a top and bottom impeller with a dividing plate inbetween the two impellers then the gearbox housing / skeg are the other two parts ,main body and the propeller shaft housing , the gearbox sits below the impeller and is sealed with a cork / leather/ felt seal at the top of the driveshaft bearing which is in fact a long bronze bush, the propeller housing has a gasket sealing it to the main geatbox /skeg housing and the propeller shaft has a cork./ felt /leather / seal . the leg drains from two holes just above the gearbox ,these hole also feed the impeller with water when submerged. this is why i asked the question in why is there a hole in the driveshaft tube allowing more water from above the impeler into this area ? and it appears it would seem on the last couple of years of the handitwin .
i have a educated guess for this hole purely as a novice on these engines , but would like my idea confirmed by someone that knows without prompting the idea 😉