trim leaks down

[leroys not fishing]

trim leaks down, no oil being loss, where do i start. 1988 merc, v -6, 150 hp

 

[Waterbugtoo]

Re: trim leaks down

If manual release is tight and not damaged, no fluid visible, then its an internal bypass, usually pump o-rings, but could be pump valve/s or port trim piston as well.

 

[clanton]

Re: trim leaks down

Pilot check valves inside of pump. I have not been able to find any specs for these pumps. When you remove the titter/totter bar, you count the turns of the nut to remove reinstall same number of turns. You should be able to find a chart by size and thread pitch to torque the pump bolts for reassembly. The seal for the check valve is same as 125 Force. The 4 orings for the pump/manifold can be found at Percision in Clearwater, you may have to beg, but thay came thru for me.