Inspection And Adjustment Of Teeth Contact - Mazda MX-5 1990 Workshop Manual

05UOMX-116
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05UOMX-117
99U09X-025
RED LEAD
63G09X-385
DIFFERENTIAL
M
7. Mark the ring gear at four paints at approx. 90° intervals.
Mount a dial indicator to the carrier so that the feeler comes
in contact at a right angle with one of the ring gear teeth.
8. Turn both bearing adjusters equally with the SST until the
backlash is 0.09-0.11 mm (0.0035-0.0043 in).
9. Check the backlash at the three other marked points, and
make sure the maximum backlash is less than O.07mm
(0.0028 in).
Note
• When adjusting the differential bearing preload, be
careful not to affect the backlash of the drive pin-
ion and ring gear.
10. Tighten the adjusting nuts equally until the distance between
the pilot sections on the bearing caps is 150.20
~g.72mm
(5.913 ~8.028 in).
Inspection and adjustment of teeth contact
1. Coat both surfaces of 6-8 teeth of the ring gear with a thin
coat of red lead.
2. While moving the ring gear back and forth by hand, rotate
the drive pinion several times and check the tooth contact.
3. If the tooth contact is good, wipe off the red lead.
4. If it is not good, adjust the pinion height, and then adjust
the backlash.
(1) Toe and flank contact
Replace the spacer with a thinner one to move the drive
pinion outward.
M-41