wsm L3301 - Page 235

ENGINE
L3301, L3901, L4701, WSM
1-S72
Connecting Rod Alignment
NOTE
• Make sure that the oil clearance of the small end bushing is
less than the allowable limit.
1. Install the piston pin into the connecting rod.
2. Install the connecting rod on the alignment tool of the
connecting rod.
3. Put a gauge on the piston pin, and move it against the face
plate.
4. If the gauge does not touch fully against the face plate, measure
the space between the gauge pin and face plate.
5. If the measurement is more than the allowable limit, replace the
connecting rod.
9Y1211012ENS0096US0
Piston Ring Gap
1. Put the piston ring into the lower part of the liner (the least worn
out part) with the piston.
2. Measure the ring gap with a feeler gauge.
3. If the ring gap is more than the allowable limit, replace the ring.
9Y1211012ENS0097US0
Connecting rod
alignment
Allowable limit
0.05 mm
0.002 in.
Top ring
Factory specification
0.20 to 0.35 mm
0.0079 to 0.013 in.
Allowable limit
1.25 mm
0.0492 in.
Second ring
Factory specification
0.30 to 0.45 mm
0.012 to 0.017 in.
Allowable limit
1.25 mm
0.0492 in.
Oil ring
Factory specification
0.20 to 0.40 mm
0.0079 to 0.015 in.
Allowable limit
1.25 mm
0.0492 in.
KiSC issued 09, 2016 A