Trim/tilt pump leak 1986 Evinrude

thebulldog

Seaman Apprentice
Joined
Oct 11, 2009
Messages
48
Ahoy Mates, I have a 1986 Evinrude 90 hp outboard that leaks/blows oil out of the manual control valve.
I have tried screwing the screw out of the pump/motor and it wont come out, i am guessing that theres an O-Ring in there somewhere that should prevent the oil from leaking/blowing out under pressure when the pump is activated ? ?

So the question is how do i get the screw out ?

Why is the oil coming out of the manual control valve screw ?

Many Thanks, and the next round of drinks is on me !
 

Anchor Management 1

Petty Officer 1st Class
Joined
Apr 27, 2009
Messages
259
Re: Trim/tilt pump leak 1986 Evinrude

There should be a C-clip you need to remove first,then control valve.
 

boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
Re: Trim/tilt pump leak 1986 Evinrude

After you remove the snap ring you may want to try an impact screw driver. There is an oring around the valve that is probably leaking.
 
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