Briggs & Stratton 276535, Repair Manual

Page: 28 / 38

2-Cycle Snow Engine
Section 5 - Engine Assembly
Page 22
1. Lubricate piston and rings with engine oil.
2. Align ring gaps with retainers in ring grooves
(Figure 62).
Fig. 62
INSTALL PISTON AND CONNECTING
ROD
The piston is marked internally or externally with the
letters PTO , and is meant to be installed only one
way.
When installing piston and connecting rod assembly,
PTO must face the PTO side of the engine. If this is not
done, the piston rings may catch in the transfer ports
during operation, breaking the rings and damaging
piston and cylinder wall (Figure 63).
Fig. 63
NOTE
: On engine models 84230 and 84330 the
transfer ports in the piston skirt must align with
the “finger ports” (these correspond with the
transfer ports in the piston) in the cylinder bore.
1. Oil piston rings and piston skirt, and compress
rings with ring compressor Tool
#19070
.
a. Place piston and ring compressor upside
down on bench with projections on
compressor facing up.
b. Tighten ring compressor evenly until rings are
fully compressed.
c. Then loosen ring compressor very slightly so
that compressor can be rotated on piston skirt
while holding connecting rod.
NOTE
: A pencil or ink mark placed on the
side of the piston skirt or top of the piston will
help ensure correct piston orientation when
installing piston and connecting rod assembly
(Figure 64).
Fig. 64
BST01-54
bst01-52
bst01-55