Chevrolet 10 series 1973, Руководство по капитальному ремонту

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4 - 5 8 REAR AXLE D IFFERENTIA L CARRIER
tools J-8092 and bearing installer J-24383 as shown
in figure 7F.
9. Install bearing on opposite side in the same
manner. Be sure to support differential case on pilot
plug J-8107-3.
SHIM REQUIREM ENTS—GAUGING
PROCEDURES
Side Bearing Shims
1. With the pinion removed from the carrier, place
the bearing cups over the side bearings, and install
the differential case into the carrier.
2. Place the shim which was originally installed on the
ring gear side into its original position.
3. Install the bearing caps lightly in their marked
positions. Tighten the caps just enough to keep the
bearings in place.
4. Mount a dial indicator on the carrier with the tip of
the indicator on the back face of the ring gear.
5. Position two screwdrivers between the bearing shim
and carrier on the ring gear side of the case. Pull
on the screwdrivers and force the differential case
as far as possible away from the dial indicator.
6. With force still applied, set the indicator dial to
"zero", being sure the probe is still in contact with
the ring gear.
7. Reposition the screwdrivers to the opposite side of
the differential case as shown in figure 8F.
8. Pull on the screwdrivers and force the differential
case back toward the dial indicator. Repeat several
times until the same indicator reading is obtained.
9. To the dial indicator reading, add the thickness of
the shim. Record the result, as this figure will be
used during determination of side bearing shim
requirements.
J - i
J -:
Fig. 7F— In s ta llin g Side Bearing
Fig. 8F—Screwdrivers A g a in s t Case
Pinion Shims
Ring gears and pinions are supplied in matched sets
only. Matching numbers on both pinion and ring gear
are etched for verification. If a new gear set is being
used, verify the numbers of each pinion and ring gear
before proceeding with assembly.
On the rear face of each pinion there is etched a plus
( + ) number, a minus(-) number, or a zero (0) number,
which indicates the best running position for each
particular gear set. This dimension is controlled by the
shimming behind the inner bearing cup. Whenever
baffles or oil slingers are used, they become a part of the
adjusting shim pack.
For example: if a pinion is etched +3, this pinion would
require .003" less shims than a pinion etched "0". This
means by removing shims, the mounting distance of the
pinion is increased by .003" which is just what a +3
etching indicates. Or if a pinion is etched —3 we would
want to add .003" more shims than would be required if
the pinions were etched "0". By adding .003" shims, the
mounting distance of the pinion was decreased .003"
which is just what a —3 etching indicated. Refer to figure
10F.
If the old ring and pinion set is to be reused, measure
the old shim pack and build a new shim pack to this
same dimension. If baffle is in the axle assembly, it is
considered as part of the shim pack.
To change the pinion adjustment, shims are available in
thicknesses of .003", .005" and .010".
NOTE: If baffle or slinger is bent or
mutilated, it should be replaced.
Measure each shim separately with a micrometer ana
add together to get total shim pack thickness from
original build up.
If a new gear set is being used, notice the plus or minus
etching on both the old and new pinion, and adjust the
OVERHAUL MANUAL