Flywheel: Service and Repair
Removal1. Remove the transaxle.
2. Remove the clutch pressure plate and disc.
Notice: While loosening the bolts, use SST to prevent the flywheel from turning.
3. Remove the pressure plate bolts and the flywheel.
Inspection
1. Check the surface for cracks scoring or discoloration of the clutch contact surface.
Notice: If the problem is minor, the repairs can be made by cleaning with a sandpaper.
2. Damaged or worn ring gear teeth.
If necessary, replace the ring gear as follows:
1) Heat the ring gear with a blowtorch, then tap around the gear to remove it from the flywheel.
2) Heat the new ring gear to (480 - 570°F), 250 - 300°c, then fit it onto the flywheel.
Notice: The bevelled side of the ring gear must face toward the engine side.
3. Run-out of flywheel
1) To measure, position the dial gauge feeler on the clutch disc contact surface, then turn the flywheel.
Run-out: 0.008 inch (0.2 mm) max.
2) If the run-out exceeds the specification, repair by grinding.
Grinding limit: 0.020 inch (0.5 mm) max.
Installation
1. Clean the sealant from the flywheel bolts.
2. Coat the six flywheel bolt threads with a Stud and Bearing Mount Sealer, or equivalent.
3. Position the flywheel on the crankshaft and install the six flywheel bolts. Use SST to prevent the flywheel from turning.
4. Tighten the six flywheel bolts.
Tightening torque: 71 - 76 ft. lbs. (96 - 103 Nm, 9.6 - 10.3 kg-m)
5. If the flywheel has been replaced, it will be necessary to install a pilot bearing in the new flywheel.