Mazda MX-5 Miata Sport 2007 Manual page 464

2006-08 TRANSMISSION Automatic Transmission Overhaul - MX-5 Miata & RX-8
11. Verify that the F4 one-way clutch rotates when the clutch hub is secured and rotated clockwise, and that it
does not rotate when the clutch hub is rotated counterclockwise.
Fig. 155: Identifying F4 One-Way Clutch Rotation Positions
CLUTCH DRUM COMPONENT AND F4 ONE-WAY CLUTCH COMPONENT ASSEMBLY
Components
2007 Mazda MX-5 Miata Sport
When the clutch hub component is replaced, inspect the

contact surface opposed to the clutch hub.
If the surface of it is scratched or has changed color, replace

the clutch hub with a new one.
Fig. 154: Measuring Inner Diameter Of Clutch Hub Component
Bushings Using Dial Gauge