Mercury Mariner Models 135 150 175 200 Service Manual, Page 606Get this manual
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ATTACHMENTSCONTROL LINKAGE
aFlat Washer (2 Each Link Rod)Nylon Insert LocknutTorque Until it Seats [DO NOT Exceed 120 lbin(13.5 Nm) of Torque], Then Back Off 14 TurnSpecial Washer Head Bo