Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 361Get this manual
MANUAL TILT ASSIST
VELOCITY VALVE REASSEMBLY
1Install spool, springlubricated o-ring and screw plug (surge valve assembly) into valve block2Torque velocity valve to 75 Ib-in(8.5 Nm)
bSpringO-ringVelocity ValveTorque to 75 Ib-in(8.5 Nm)