Briggs & Stratton 5 HP, Руководство по устранению неполадок и ремонту

Страница: 51 / 76

49
Piston and Connecting Rod
The piston pin is a slip fit in both the piston and connecting
rod.
1. Oil the piston pin. Assemble the piston to the
connecting rod as shown in
.
NOTE
: The word MAG cast in the flywheel side of
the connecting rod must face the same direction as
the arrow
(Figure 82)
on top of the piston.
2. Insert the piston pin from the piston pin lock side of
the piston pin bore until the pin stops against the
shoulder.
3. Install the piston pin lock. Be sure lock is firmly set in
groove.
Piston Rings
Correct piston ring positions are shown
.
1. Install the expander
(Figure 83)
and oil control
ring first, followed by the center ring and top
ring .
2. Install the center and top rings with the ID mark
facing the top of the piston.
Compress Piston Rings
1. Oil the piston rings and piston skirt.
2. Compress the piston rings with Ring Compressor
(#19230)
(Figure 84).
3. Place piston and compressor upside down on bench
and push piston down until head of piston is even with
edge of compressor.
4. Tighten compressor until piston cannot be turned.
5. Loosen compressor until piston can be turned with
slight resistance
(Figure 85).
NOTE
: Do not attempt to install piston and ring
assembly without ring compressor.
5
1
2 3
4
2
1
ASSEMBLY
Section 5 • Assembly
5 HP Outboard • Troubleshooting & Repair Manual
5
Figure 83 — Piston Rings
Figure 84 — Ring Compressor
Figure 85 — Piston Assembly Ready To Install
Figure 82 — Piston & Rod Assemblies
1
2
3
4
5
5
1
2