Mercury Mariner Outboard 225 3 Litre Service Manual 1994, Page 206Get this manual
3 Assemble end capLubricate the a-rings on the rod and end cap with Power Trim and Steering Fluid Clamp cylinder in soft jawed vise and install tilt rod assemblyUse spanner wrench and lighten end cap securely9174951
End CapO-ring (2)Scraper sealWasherRetaining ring
51341Cylinder TIlt rod assemblyEnd cap (Tighten securely Use spanner wrenchLubricate seal and rod shaft with Power Trim and Steering Fluid to prevent seal damage during assemblyReinstall end cap