1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 338Get this manual
4Using suitable punch, drive lower pivot pin into clamp bracket and trim cylinder assembly until pivot pin is flush with outside surface 6Apply 2-4-C wTeflon (92-825407A12) to surface of upper pivot pin, pivot pin bore and trim ram bore
NOTE: Install trim ram with cross hole located as shown .If trim ram is installed reversed, the trim sender (if installed) will not operateCross Hole