1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 360Get this manual
Temporarily adjust tube so that longer threaded end of tube extends out the same distance as the outboard tilt tubeDo not tighten adjustment nuts at this time Torque steering cable attaching nuts only after final steering adjustments have been made
51891 Steering Cable Ends Outboard Tilt Tube Cable Mounting Tube Cable Attaching Nuts
aSteering Cable Mounting Tube (End of Tube with Longer Threads Toward Starboard Side of Boat)Mounting BracketLocking Tab Washers (2)Adjustment Nuts (Flats of Nuts Facing Toward Locking Tab Washer)
Place mark on steering cable mounting tube 58 in(16mm) from end of mounting tubeSlide plastic spacer, O-ring and cap over steering cable58(16mm)
Installing Steering Cables
IMPORTANT: Lubricate inside of outboard tilt tube, inside of steering cable mounting tube and rubber O-ring seal (located in outboard tilt tube) with Quicksilver 2-4-C wTeflon before installing steering cablesLubricate inside of outboard tilt tube and inside of steering cable mounting tube with Quicksilver 2-4-C wTeflonVerify rubber O-ring seal (located in outboard tilt tube) is lubricateda Mark Steering Cable Tube Spacer O-ring Cap