Colt L4-1597cc 1.6L DOHC (1990)
Fig. 30 Drive Gear Runout Measurement
12. Adjust final drive gear backlash as follows:
a. Install side bearing spacers, which are thinner than those removed, to side bearing outer races and mount differential case assembly into gear
carrier.
NOTE: Use side bearing spacers with the same thickness for both drive pinion and drive gear sides.
b. Push differential case to one side of the gear carrier and measure clearance between gear carrier and side bearing as shown.
c. Measure thickness of side bearing spacers on one side, then select two pairs of spacers which correspond to that thickness plus one half of
clearance plus 0.002 inch. Install one pair each to drive pinion side and drive gear side.
d. Install side bearing spacers and differential case assembly to gear carrier as shown.
e. Tap side bearing spacers with a brass bar to fit them to side bearing outer races.
f.
Align mating marks on gear carrier and bearing cap, then tighten bearing cap.
g. With drive pinion locked in place, measure final drive gear backlash with a dial indicator mounted on drive gear as shown.
h. Measure at four or more points around the circumference of the drive gear, backlash should be within 0.004-0.006 inch (0.11-0.16 mm).
i.
Change side bearing spacers as shown, and then adjust final drive gear backlash between drive gear and drive pinion.
NOTE: When increasing number of side bearing spacers, use the same number of each, and as few as possible.
j.
Check drive gear and drive pinion for proper tooth contact, refer to INSPECTION for adjustment procedure.
k. Measure drive gear runout at shoulder on reverse side of drive gear. If drive gear runout exceeds 0.002 inch, reinstall, changing phase of drive
gear and differential case, and remeasure.
