2000 Mecury 90hp Trim/Tilt - how do u change oil?

slyell

Cadet
Joined
Aug 31, 2008
Messages
9
I noticed yesterday there was a leak from the plastic hex screw on the canister next to the hydraulic lift..a bunch of hydraulic fuel spilled out. i guess it was so tight the plastic o-ring around the screw looked flat... should i just tighten it enough but not all the way? i unscrewed the screw a bit and moved the ring around so now it doesnt leak... in the process i can hear air coming out the side of the screw. i never fully took off the screw.. my question... .

How do you add hydraulic oil into the pump. i read somewhere you trim the motor up and then add the fuel in the plastic hex screw part but the screw looks like it is at the bottom of the canister... how does that work?

currently if i hit the trim tab i can hear it pumping air a bit before it starts trimming up and down... once it does.. the trim works fine... is it just a little low?
 
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