Toro 159cc - Piston Ring; Connecting Rod Specifications

34
Piston Ring End Gap
Standard
Service Limit
0.0078 - 0.0157”
(0.2-0.4 mm)
0.0393”
(1.0 mm)
Use the piston to position the rings squarely 1” down from the
top of the cylinder.
NOTE: If this measurement is out of specification, complete engine replacement is required.
The only internal parts available for this engine are gaskets and seals.
Connecting Rod Small End ID
Standard
Service Limit
0.5125”
(13.02 mm)
0.5145”
(13.07 mm)
NOTE: If this measurement is out of specification, complete engine replacement
is required. The only internal parts available for this engine are gaskets and
seals.
Connecting Rod Big End ID
Standard
Service Limit
1.0244”
(26.02 mm)
1.0263”
(26.07 mm)
NOTE: If this measurement is out of specification, complete engine replacement is required.
The only internal parts available for this engine are gaskets and seals.