Mercury MERCRUISER Service Manual

Connecting Rod, Bearings, and Piston Assembly
Exploded View
Piston and connecting rod
1 - Upper compression ring
2 - Lower compression ring
3 - Upper oil control ring
4 - Oil control ring spacer
5 - Lower oil control ring
6 - Piston
7 - Piston pin
8 - Snap ring (2)
9 - Connecting rod
10 - Upper bearing half
11 - Lower bearing half
12 - Bearing cap
13 - Screw (2)
Removal
1. Using a ridge reamer, remove any ridge or combustion deposits from the top of the cylinder bore.
Description
Part Number
Cylinder bore ridge reamer Obtain Locally
a. Turn the crankshaft until the piston is at the bottom of the stroke.
b. Place a cloth on top of the piston to collect cuttings.
1
2
3
4
5
6
7
8
9
10
11
12
13
55056
8
Engine Disassembly
Page 3A-36 © 2016 Mercury Marine 90-8M0099748 eng DECEMBER 2015

Mercury MERCRUISER Specifications

General

Brand	Mercury
Model	MERCRUISER
Category	Engine
Language	English