1-S57
L4400 , WSM
ENGINE
Connecting Rod Alignment
NOTE
■
• Since the I.D. of the connecting rod small end bushing is the
basis of this check, check bushing for wear beforehand.
1. Install the piston pin into the connecting rod.
2. Install the connecting rod on the connecting rod alignment tool.
3. Put a gauge over the piston pin, and move it against the face
plate.
4. If the gauge does not fit squarely against the face plate, measure
the space between the pin of the gauge and the face plate.
5. If the measurement exceeds the allowable limit, replace the
connecting rod.
W10314620
(4) Crankshaft
Side Clearance of Crankshaft
1. Move the crankshaft to the flywheel side.
2. Set a dial indicator to the crankshaft.
3. Measure the end play by pulling the crankshaft toward the crank
gear.
4. If the measurement exceeds the allowable limit, replace the
thrust bearing 1 and 2.
(Reference)
• Oversize dimensions of crankshaft journal
W1032880
Connecting rod
alignment
Allowable limit
0.05 mm
0.0020 in.
Crankshaft side
clearance
Factory spec.
0.15 to 0.31 mm
0.0059 to 0.0122 in.
Allowable limit
0.5 mm
0.0197 in.
Oversize
0.2 mm
0.008 in.
0.4 mm
0.016 in.
Dimension A
26.20 to 26.25 mm
1.0315 to 1.0335 in.
26.40 to 26.45 mm
1.0394 to 1.0413 in.
Dimension B
54.5 to 54.7 mm
2.1457 to 2.1535 in.
54.6 to 54.8 mm
2.1496 to 2.1575 in.
Dimension C
2.8 to 3.2 mm radius
0.1102 to 0.1260 in. radius
2.8 to 3.2 mm radius
0.1102 to 0.1260 in. radius
(0.8S)
The crankshaft journal must be fine-finished to higher than
∇∇∇∇
KiSC issued 07, 2007 A
Tractor Manuals Scotland - Please Do Not Copy
Tractor Manuals Scotland
