The tank is most commonly at the bottom of the pump. Pump is usually
at the transom somewhere. Get someone to operate the pump while you
search for the noise if you don't know where it is. Power steering
fluid or auto trans fluid.

wrote:
1980 SeaRay 190

Trim comes up, but only partial down. This makes travel a bit of a
''plow". I looked unsuccessfully to see where I might add fluid to
trim, since I hear the motor hum on both up and down.

Where do I add fluid? What kind of fluid? Had an owners manual, but
have moved a number of times.....and manual gone or in the bottom of
some storage box in the barn.

Roger B