Mercury 75 Service Manual page 265

Position Cylinder Block and Piston Rods, as shown.
Note locating pins.
a
b
3 Cylinder Models
4 Cylinder Models
a - Locating Pins
b - Lower (Gear) End
c - Flywheel End (Top)
90-830234R3 DECEMBER 1997
a
c
20038
a
20038
Place crankshaft into cylinder block; align and seat
top and center main bearings so that locating pins on
block mate with holes in each bearing race.
3 Cylinder Models
4 Cylinder Models
20336
51080
POWERHEAD - 4-53