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Crankshaft Installation
1. Select a seal protector based on size of crankshaft
mag journal.
2. Insert protector into mag side oil seal.
3. Install crankshaft to cylinder.
4. Install slip fit timing gear (if removed) with timing
mark out.
Install Connecting Rod & Piston
1. Lubricate cylinder bore and crankpin.
2. Rotate crankshaft until crankpin journal is at bottom
of stroke.
NOTE
: This permits the compressed rings, piston
and rod assembly to be pushed into the cylinder.
3. Install piston with arrow
flywheel side of engine. Take care not to damage
crankpin journal or connecting rod journal.
Figure 86 — Install Piston Assembly
5
4. Pull connecting rod against crankpin.
5. Install connecting rod cap with notch in rod cap
aligned with tab in connecting rod
toward
(Figure 86)
1
1
.
5 HP Outboard • Troubleshooting & Repair Manual
NOTE
: The notch in the connecting rod cap
must engage the tab on the
(Figure 87)
3
connecting rod
2
6. Install connecting rod cap screws.
Figure 87 — Connecting Rod Cap
2
CAUTION:
Failure to use a torque
wrench can result in loose rods (causing
breakage) or over-tightened rods (causing
scoring).
NOTE
: Torque the screw closest to the piston
first. Torque the screw farthest from
(Figure 88)
4
piston second
. The connecting rod screws must
5
be torqued in this sequence.
Figure 88 — Torque Connecting Rod Cap
50
Section 5 • Assembly
.
3
4
5
4
5
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