Mercury Optimax Models 135, 150, Direct Fuel Injection., Page 233Get this manual
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POWERHEAD
Torque Sequence
CRANKCASE COVER BOLTS (AND TORQUE SEQUENCE) 7
aAdd light oil to threads and bolt face: Bolts (38 in- 16 in 38 lbft(51.5 Nm)Bolts (516 in- 18) 180 lbi