2001 Mercury Mariner 50-60HP Factory Service Manual, Page 359Get this manual
POWER TRIM
2Install spool, seat with o-ring, check valvepoppet, spring and plug with o-ring into pumpRepeat for other sideTorque plugs to 120 lb-in(13.5 Nm)
aPlug (2) Torque to 120 lb-in(13.5 Nm)Spring (2)Check ValvePoppet (2)Seat (2)Spool