ing on dial indicator. Record the number obtained.
Now rotate the gauge disc clockwise 1/3 of a turn and
recheck readings. Record number obtained. Rotate
the gauge disc another 1/3 of a turn clockwise and
take another reading. Average the three readings.
Record this pinion depth measurement. If the read-
ings differ by more than two thousandths recheck
guage disc installation, it may have been installed
slightly cocked.
(12) To determine the required shim thickness, the
pinion depth measurement must be adjusted. The
pinion shim adjustment number is the first of seven
digits ink stamped on the shank of the transfer shaft
(Fig. 400). Using the adjustment factor chart, convert
the adjustment number to the corresponding adjust-
ment factor. Utilizing the pinion depth measurement
obtained in Step 11, add or subtract the adjustment
factor to calculate the requred shim thickness. Refer
to pinion head shim chart for shim selections. This is
the shim that will be installed between the transfer
shaft pinion head and the front transfer shaft bear-
ing. Refer to the following examples for further
explanation:
(13) Example 1 in (MM):
• Measured pinion shim depth: 0.789mm
• Adjustment number on transfer shaft: +2
• Adjustment factor (mm): -0.051mm
• Shim size needed: 0.789-0.051= 0.738mm
(14) Example 2 in (IN):
• Measured pinion shim depth: 0.032in
• Adjustment number on transfer shaft: -1
• Adjustment factor (in): +0.001
• Shim size needed: 0.032+0.001= 0.033in
(15) Remove dial indicator, gauge disc and center-
ing block from transaxle.
(16) Install shim selected in Step 12 of this proce-
dure onto the transfer shaft (Fig. 400).
(17) Press front transfer shaft bearing onto trans-
fer shaft (special tool 6052). The shim must be in
place before pressing on bearing (Fig. 401).
(18) At this point the pinion depth has been deter-
mined and the shim has been installed onto the
transfer shaft. Before the pinion is installed into the
transaxle case, bearing preload must be determined
for the differential bearings. The following steps
must be performed before the pinion is installed.
(19) The following steps will determine how many
foot pounds are required on the outer differential
adjuster to obtain the correct turning torque.
CAUTION: Failure to set differential bearing preload
correctly may cause bearing failure, gear noise
and/or axle shaft seal failure.
Fig. 398 Mounting Dial Indicator to Centering Block
1 – CENTERING BLOCK
2 – GAUGE DISC
3 – DIAL INDICATOR
Fig. 399 Pivot Dial Indicator
1 – CENTERING BLOCK
2 – GAUGE DISC
ADJUSTMENT FACTOR CHART
21 - 128 42LE TRANSAXLE LH
DISASSEMBLY AND ASSEMBLY (Continued)
To Next Page
Loading...
