The flywheel is attached to the rear of the crankshaft with ten bolts. The bolt holes in the crankshaft and flywheel are evenly spaced. The flywheel is not indexed to the crankshaft, and may be installed in any position. See Figure
Typical Flywheel Assembly
Repair or Replacement of Flywheel
To determine if repair is possible or replacement is necessary, perform the following procedure. See Figure
Repair or Replacement of Flywheel Flowchart
Removal of Flywheel
Pre-cleaning is not necessary.
Remove the flywheel as follows:
Remove the transmission assembly. Refer to OEM guidelines.
Remove the inspection plug in the bottom of the flywheel housing.
Loosen, but do not remove, the last flywheel attaching bolt.
To avoid injury from a falling flywheel when removing the last bolt, hold the flywheel against the crankshaft by hand to prevent it from slipping off the crankshaft. The flywheel is not doweled to the crankshaft.
Remove the flywheel lock.
Remove the final flywheel attaching bolt.
Remove the flywheel.
Inspection of Flywheel
Inspect the flywheel as follows:
Inspect the clutch contact base of the flywheel.
Check the clutch contact base for scoring, wear, or cracks.
If the clutch contact face is scored or worn, reface the flywheel.
If the clutch contact face is cracked, replace the flywheel.
Inspect flywheel flatness.
Check the flatness of the clutch face of the flywheel with a straight edge.
The flywheel surface must be flat within 0.05 mm (.0022 in.), when measured across the face of the 14 in. clutch surface.
If the measurement exceeds this specification, replace the flywheel.
Inspect the ring gear.
Check ring gear for excessively worn or damaged gear teeth.