4. Insert the bearing shells into the connecting rod and its matching rod cap.
5. Liberally lubricate the connecting rod bearings, pistons, rings, and cylinder walls.
Tube Ref No.
Description Where Used Part No.
139
25W-40 Synthetic Blend
4-Stroke Marine Engine
Oil
Connecting rod bearings, pistons, rings, and cylinder walls 92-8M0078629
6. Position ring gaps as shown.
Ring gap locations
a - Oil ring spacer gap
b - Oil ring gaps
c - Lower compression ring gap
d - Upper compression ring gap
e - Front of engine
7. Use the piston ring compressor and compress rings.
Engine Inspection and Assembly
90-8M0099748 eng DECEMBER 2015 © 2016 Mercury Marine Page 3B-27