Flywheel: Testing and Inspection

Flywheel (M/T models)
^ When installing flywheel to crankshaft, be sure to correctly align crankshaft side dowel pin and flywheel side dowel pin hole.





^ There is a mating mark on the clutch cover side of flywheel. Refer it during installation.





^ Holding ring gear with ring gear stopper (SST), tighten securing bolts with TORX socket (size: T55, commercial service tool).
^ Tighten mounting bolts crosswise over several times.

FLYWHEEL DEFLECTION





^ Measure the deflection of flywheel contact surface to clutch with dial indicator. Measure the deflection at 210 mm (8.27 inch) dia.
Standard Less than 0.45 mm (0.0177 inch)
^ If measured value is out of the standard, replace flywheel.

MOVEMENT AMOUNT OF FLYWHEEL

CAUTION: Do not disassembly double mass flywheel.

Movement Amount of Thrust (Fore-and-Aft) Direction
Measure the movement amount of thrust (fore-and-aft) direction when 100 N (10.2 kg, 22 lbs.) force is added at the portion of 125 mm (4.92 inch) radius from the center of flywheel.
Standard Less than 1.3 mm (0.051 inch)
^ If measured value is out of the standard, replace flywheel.

Movement Amount of Radial (Rotation) Direction
Check the movement amount of radial (rotation) direction as follows:
1. Install bolt to clutch cover mounting hole, and place a torque wrench on the extended line of the flywheel center line.
^ Tighten bolt at a force of 9.8 Nm (1 kg-m, 87 inch lbs.) to keep it from loosening.





2. Put a mating mark on circumferences of the two flywheel masses without applying any load (Measurement standard points).
3. Apply a force of 9.8 Nm (1 kg-m, 87 inch lbs.) in each direction, and mark the movement amount on the mass on the transmission side.
4. Measure the dimensions of movement amounts "A" and "B" on circumference of flywheel on the transmission side.
Standard Less than 24 mm (0.94 inch)
^ If measured value is out of the standard, replace flywheel.

Flywheel Torque 88.2 Nm (9.0 kg-m, 65 ft. lbs.)