Mercury Optimax 115, 135, 150, 175, DFI year 2000 and up service manual., Page 358Get this manual
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CLAMPSWIVEL BRACKETSDRIVESHAFT HOUSING
Torque nut to 120 lbin(13.5 Nm) and then back off 14 turnNOTE: Torque nut to 20 lbft(27 Nm)
90-859494R1 JUNE 2000
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