69 40 hp Evinrude

[rich lafollette]

I have a 40 hp 1969 Evinrude manual shift that I'm trying to get back into<br />Running condition. I have removed the lower unit and put in a new impeller<br />replaced the lower lube, new plugs, cleaned carb. 2 questions. I have a hose<br />hooked up to the motor for running purposes. Still runs kind of rough and <br />there is a hole right above the lower skag on the side and after the motor<br />has run for a while and I stop it there is some kind of foamy stuff coming out <br />of it, but does not appear to be the lower green gear lube, what is this hole for?

 

[Tracy Coleman]

Re: 69 40 hp Evinrude

rich l<br />The gunk running out of a drain hole is a mix of exhaust-burned and unburned gas, oil and water.<br />Most goes out the exhaust but to prevent freezing<br />and bursting, small pockets have small holes to drain whatever runs down. A poor running engine makes more gunk than one in good tune.<br />Backfire