Lancia Beta montecarlo Shop Manual page 169

033/13
BETA MONTECARLO
SHOP MANUAL
03 GEARBOX -CHAPTER 3
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0.10 = 2.5 mm.
-Fit a shim of the correct thickness and replace
the cover without the oil seal. Tighten the
mounting bolts to the correct torque loading.
-Bring the gearbox side of the unit to the top,
mount the oil seal cover without the oil seal,
and tighten the respective mounting bolts. Fit
tool 88023411 to the side gear, check that
there is no end float between the gear and the
pinion, and tighten the tool with the flange
attachment ring nut.
-Turn the assembly through 180°C and fit tool
88023410 for bedding the outer races. Apply
torque spanner 88091135 (set to the correct
loading) to the arm of the tool. If this spanner
is not available, use a weight equal to the
value shown in the relevant SAT sheet. Turn
the handle of the tool and bed the bearings.
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Fig. 03 3/40 -Measurement of rolling torque of
differential bearings with a torque spanner .
-Turn the assembly, remove the handle of tool
88023411 and use torque meter 88095138
together. with socket 8802141.1 to .mea~re ;{.~
the rolling torque of the bearing. Since the ,..
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Fig. 03 3/39 -Assessment of shim thickness to preload
the bearings.
1. Side gear. 2. Shim of known thickness. 3. Differential
support -4. Outer race -5. Inner race -6. Oil seal cover
-Remove tool 88023410 and mount a shim of
known thickness on the bearing (preferably
the thickest spare shim). Place the cover (6)
over the shim and use a feeler gauge to
measure the gap between the cover and the
support. The difference between the known
value and the measured value will be that of
the shim required to preload the bearing.
,
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Example:
B = Thickness of shim mounted (2.6 mm)
A = Gap to be measured with feeler gauge
S = Thickness of shim required
-If A is between 0.10 and 0.15 (i.e. feeler 0.10
mm passes and feeler 0.15 mm does not), the
smaller value is taken, so that S will be 2.60 -
Fig. 033141 -Measurement of rolling torque with the
aid of weights.