Connecting Rod Installation; Piston Ring Installation - Mercury 40 Service Manual

CYLINDER BLOCK/CRANKCASE

Connecting Rod Installation

1. Lubricate the piston pin with oil and assemble the piston to the connecting rod. Always
use new circlips.
IMPORTANT: Install side of connecting rod marked with a "Y" towards "UP" on pis-
ton.
a -
b -
c -

Piston Ring Installation

1. Install the oil ring components as shown. Align upper oil ring rail ends with locating pin.
Spread rings just enough to slip over piston.
a -
b -
c -
d -
e -
Page 4B-30
a
c
Y
b
a
Circlip
Piston Pin
Side Marked "Y" is Installed Towards "UP" on Piston
f
Lower Oil Ring Rail
Lower Rail has Flat Ends
Upper Oil Ring Rail
Upper Rail has Notched Ends
Oil Ring Spacer
f - Locating Pin (Align Upper Oil Ring Rail Ends with Pin)
d
c
e
a
b
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90-828631R3 MARCH 1999