Cub Cadet 8404 - Manual (Page 78)

CHAPTER 2 8354/8404
2-56 D615-W02 May-2003
615W2B8A
4) Crankshaft
(A) Flywheel deflection and crankshaft end play
1. Set a dial indicator with its tip on the rear friction
face of the flywheel near the edge.
2. Turn the flywheel and measure the deflection or the
uneven wear.
3. If the measurement exceeds the allowable limit,
remove the flywheel and check the mating faces of
the crankshaft and flywheel.
4. If scored of worn excessively, regrind or replace the
flywheel.
5. Move the crankshaft with flywheel back and forth to
each end and measure the end play.
6. If the play exceeds the allowable limit, replace the
side bearing.
Deflection
End play
Allowable
limit
Factory
spec.
Allowable
limit
0.05 mm
0.0020 in.
0.15 ~ 0.31 mm
0.0059 ~ 0.0122 in.
0.5 mm
0.020 in.
(F) Connecting rod alignment
1. Remove the connecting rod bearing and install the
bearing cap.
2. Install the piston pin in the connecting rod.
3. Install the connecting rod on the connecting rod
alignment tool.
4. Put a gauge over the piston pin and move it against
the face plate.
5. If the gauge does not fit squarely against the face
plate, measure the space between the pin of the
gauge and the face plate.
6. If the measurement exceeds the allowable limit,
replace the connecting rod.
615W2B7A
Space between
gauge pin and
face plate Allowable
limit
0.05 mm (0.0020 in.)
at 100 mm (3.94 in.)
of gauge pin span