Piston And Connecting Rod; Disassembly - Briggs & Stratton Vanguard 10V300 Repair Manual

Disassembly

1. See Figure 60. Insert small pick into pick lock groove
and pull piston pin lock ring out of pin boss groove.
Discard lock ring.
CAUTION
Always wear proper eye protection when removing
piston pin lock ring. Slippage can propel the ring
with enough force to cause eye injury.
2. Push piston pin toward open pin boss to remove from
piston and upper connecting rod.
3. Obtain the Piston Ring Expander (Part No. 19340).
CAUTION
Always wear proper eye protection when removing
compression and oil wiper rings. Slippage may
propel the ring with enough force to cause eye
injury.
4. See Figure 61. Remove compression ring from the
top ring groove.
60

PISTON AND CONNECTING ROD

61
5. Remove oil wiper ring from the middle ring groove.
6. Remove oil control ring from the bottom ring groove.
Proceed as follows:
• Remove the expander spring.
• See Figure 62. Spiral or wind the upper steel rail
from the bottom ring groove into the middle ring
groove. Repeat action to move the rail into the
top ring groove and then off the piston.
• Repeat above step to remove the lower steel rail.
62
6
53