Bearing Cap Assembly Note

Tightening torque 

38-51 N.m {3.9-5.2 kgf.m, 28.1-37.0 ft.lbf} 

Fig 1: Identifying Mark

Courtesy of MAZDA MOTORS CORP.

1. Coat both surfaces of the ring gear uniformly with a thin red lead coating.
2. While rotating the ring gear back and forth by hand, rotate the drive pinion several times and inspect the tooth contact.
3. Inspect the tooth contacts in four locations around the ring gear, and check that the tooth contacts showing the red lead coating are the same as the pattern indicated in the figure.
   Fig 2: Tooth Contacts Showing The Red Lead Coating

   Courtesy of MAZDA MOTORS CORP.
   • If the tooth contact is good, wipe off the red lead coating.
   • If it is not good, adjust the pinion height, then adjust the backlash.
4. If toe and flank contact appears as shown in the figure, replace the spacer with a thinner one, and move the drive pinion outward.
   Fig 3: Identifying Toe And Flank Contact

   Courtesy of MAZDA MOTORS CORP.
5. If heel and face contact appears as indicated in the figure, replace the spacer with a thicker one and move the drive the pinion inward.
   Fig 4: Identifying Heel And Face Contact

   Courtesy of MAZDA MOTORS CORP.