Mercury Mariner 25HP 4-Stroke Outboard Service Manual 1997, Page 231Get this manual
Power Trim Reassembly IMPORTANT: Lubricate all O-rings with Quicksilver Power Trim Fluid (92-90100A12)lf not available, use automotive (ATF) automatic transmission fluid
Suction Seat Reassembly
1Lubricate O-rings with power trim fluid2Install fi lter and suction seat using 932" or mm socket on OUTSIDE diameter of suction
seat3Install ball and plugTorque plug to 120 lbin(13.5 Nm)
Tilt Relief Valve Reassembly
1Lubricate Q-rings with power trim fluid
2Place actuator pin into pilot valve3Install and seat the pilot valve into manifoldSeat the pilot valve using 932" or mm socket on OUTSIDE diameter 01 the pilot valveIMPORTANT: The pilot valve must be seated using suitable mandrel on the OUTSIDE diameter4Install poppet, spring, shim (if used) and plugTorque plug to 120 lbin(13.5 Nm)