Mercury 35/40HP 2 Cylinder Outboards Service Manual PN 90-42794--1, Page 283Get this manual
Power Trim Unit Installation 1Apply 2-4-C Marine Lubricant (92-90018A 12) to lower pivot pin bore and pivot pin surface2Start lower pivot pin into pivot pin bore and position lower dowel pin (RETAINED) in its respective hole
aLower Pivot Pin
5Using suitable punch drive lower dowel pin into its respective bore until seated
aLower Pivot PinLower Dowel Pin
3Position trim cylinder assembly (BOTTOM FIRST) between clamp brackets and route trim pump electrical harness through access hole in starboard clamp bracket