1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 136Get this manual
TORQUE SPECIFICATIONS Application (Listed in Reassembly Sequence) Rod Cap Bolts 1st Torque 2nd Torque (after checking alignment) Torque 15 lbin(1.7 Nm) 30 lbft(40.7 Nm) Recheck Alignment NOTE: See page 4A-32 18 lbft(24.4 Nm) 25 lbft(33.9 Nm) 18 lbft(24.4 Nm) 18 lbft(24.4 Nm) 18 lbft(24.4 Nm) 60 lbin(6.8 Nm) 40 lbin(4.5 Nm) 13.5 lbft(18.3 Nm) 60 lbin(6.8 Nm) 14.5 lbft(19.7 Nm) 120 lbft(162.7 Nm) 18 lbft(24.4 Nm) 100 lbin(11.3 Nm) 150 lbin(16.9 Nm) 44 lbft(59.7 Nm) OTHER Spark Plugs Screw in Poppet Valve Shift Rail Bolts 20 lbft(27.1 Nm) No torque requirement tighten securely 150 lbin(16.9 Nm)