volvo penta 4.3 oil leak

[cueball46]

I have a 1997 volvo penta that has an oil leak on the left side of the motor if you are looking at it from inside the boat i am having trouble locating the leak it only seems to leak at high speed but will dump about a quart of oil in an 6 to 8 hr day into the hull it will be on the side of the motor under the exhaust around the spark plugs and starter i am a novice boater and are unsure any suggestions would be great thanks

 

[Bondo]

Ayuh,.... Welcome Aboard,... So it's on the starboard side of the motor,....

A Gusher like that oughta be easy enough to find, but ya gotta Look,......

Could be the valve cover, or intake manifold, but again, ya gotta Look,....