Mercury Mariner V-250 V-275 Outboard Service Shop Manual 1990, Page 170Get this manual
11 Apply Loc We GradeA" on th reads of lower moun nuts and install nutsTorque nuts to 50 lbft(67.7 Nm)12Install rubber cap onto the head of each lower mount bo lt 14Install lower mou nt retainersTorque bolts to 150 lbin(16.9 Nm)
aRubber CapNutLower Moun!Lower Mount
13ln stall stop strap Torque stop strap retaining bolt to 40 lbft (54.2 Nm)