burnt oil leak

[Jon Pal]

I have a 1981 Evinrude 150hp outboard that has a oil leak below the exhaust housing. Where could it be coming from? How can I fix this?

 

[Crosbyman]

could t be just carbon crud, unburnt fuel mixing and drooling out

if gearcase oil is ok just keep any drains clear and open

 

[Jon Pal]

could t be just carbon crud, unburnt fuel mixing and drooling out

if gearcase oil is ok just keep any drains clear and open

it's burnt oil, i was wondering if it was something in the exhaust theat needs to be fixed

 

[Zack19919853]

Maybe base gasket for the power head I believe mine is leaking. Hard to tell with all the oil over the shaft and everything. So I cleaned it get a better look. I tighten up some of power head bolts to be sure. We’re a little loose. But take the cover off to get a better look

 

[Faztbullet]

These are bad about powerhead gaskets failing...on use the OEM reinforced gasket

 

[racerone]

Replace gasket under powerhead.-----Agreed factory gasket is best.

 

[oldboat1]

Might check with a dealer and look for a gasket set (powerhead and exhaust housing).

 

[oldboat1]

(Try NAPA for a gasket set.)

 

[racerone]

the factory gaskets maybe higher quality.----Especially the gasket between block and exhaust housing.

 

[oldboat1]

agree. NAPA would be Sierra gaskets -- but the whole assortment, and that is a cost and convenience advantage. I've had good luck with Sierra products generally, but oem would be preferable. Maybe a shop has a packet -- dusty old NOS package on a back shelf.

 

[racerone]

Gasket set seems to be listed and available all day long.-----Fresh and new.