Differential Components; Inspection Of Components - Fiat 500L Workshop Manual

Key toFig 6:7 1 Axle shafts
coupling sleeve 5 Differential case cover with bearing inner race
8 Side gear thrust ring
13 Adjuster retainment ring
1 6 Bevel gear
withdraw the layshaft together with the final drive
pinion and the roller bearing inner race from the rear.
11 From the inside of the gearbox casing carefully slide off
the following parts from the mainshaft, the drive
pinion adjustment shim, the third and fourth driven
speed gears together with their bushes, the third- and
fourth-speed hub and sliding sleeve, the first and
reverse driven gear, and carefully drive out the front
bearings and the bevel pinion rear bearing outer race.
1 2 Using a suitable press, drive out the drive pinion roller
bearing inner race from the end of the mainshaft.

Inspection of components:

Before inspecting the various parts removed from the
gearbox casing thoroughly wash all components and
blow dry using a compressed air jet and then proceed as
follows:
1 Thoroughly inspect the gearbox casing to ensure that it
is not cracked and that the bearing seats are neither
F500
FIG 6:7
2 Sleeve retainment lockrings
9 Idle pinion shaft 10 Idle pinions
14 Bearing housings with retaining nuts and outer races

Differential components

3 Slip joint casings
6 Side gears
11 Oil boots
worn or damaged so allowing the bearing outer ring
to rotate during the normal operation.
2 Thoroughly check the ballbearings to ensure that they
are in perfect condition and that both radial ply and
axial play is not excessive. The maximum permissible
bearing play is as follows:
Front bearings of primary shaft layshaft:
(a) Sideways .002 inch
(b) Endwise .017 inch
Primary shaft rear bearing:
(a) Sideways .002 inch
(b) Endwise .016 inch
Hold the bearings firmly by the outer race and gently
rock the inner race backwards and forwards. The sliding
action produced should be free and silent. If any rough-
ness is felt then the bearings must be renewed. Check
the roller bearings by inspecting the condition of the
rollers as well as the outer and inner races. Always fit
new bearings if there is any doubt as to their efficiency.
4 Axle shaft-to-wheel shaft
7 Oil boot retainment cover
12 Differential case with bearing inner race
15 Idle pinion shaft retainment cup
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