Chevrolet 1977 10 Series, Руководство по ремонту, Страница: 106 / 468

4B-34 OVERHAUL MANUAL
9. Preload the dial in d ic a to r one h a lf revolution, and
tighten in this position.
10. Select the b u tto n on th e g au g e p la te th a t
corresponds to the rin g g e a r size an d ro tate the
p late until the p lu n g e r rests directly upon th at
button.
11. Rock the plu n g er rod slowly back and fo rth across
the button until the d ial in d ic a to r read s the greatest
deflection. A t this po in t, set the dial in d icato r to
zero. Tools will now be p o sitio n ed as shown in
figure 22C.
12. R ep eat the rocking action o f the p lu n g er several
tim es to v erify the setting.
13. Once the zero re a d in g is o b tain e d , swing the
p lu n g er until it is rem oved from the g au g in g plate
button.
The dial in d icato r will now re a d the req u ired p in io n
shim thickness for a " n o m in a l" p in io n .
Fig. 21C—Measuring Rotating Torque
14. Check the re a r face o f the p in io n being installed
fo r a p in io n code n u m b er. T his n u m b er indicates
the
necessary a lte ra tio n o f the p in io n shim
thickness as d eterm in ed in step 13.
a. If the p in io n is stam p e d w ith a plus ( + )
nu m b er,
add
th a t m a n y th o u san d th s to the
in d icato r read in g . F o r exam ple, if in d icato r
re a d in g is .019, and p in io n is m arked ( + 2), the
correct d ep th shim fo r in stallatio n will be .019
+ .002 = .021 inch.
b. If the p in io n has no plus ( + ) or m inus (—)
n u m b er, use the in d ic a to r re a d in g as the correct
shim thickness.
c. If the p in io n is stam p ed w ith a m inus (—)
number,
subtract
that many thousandths from
the in d icato r read in g . F o r exam ple, if the
in d icato r re a d in g is .031, a n d p in io n is m arked
(—3), the correct d ep th shim for in stallatio n will
be .031 - .003 = .028 inch.
15. Rem ove b earin g caps and d e p th g au g in g tools from
carrier.
16. Position the shim selected in step 14 on the p inion
sh aft ag ain st the p in io n h ead .
17. Install the re a r b e a rin g on drive p in io n , using
J-8609 as shown in figure 23C.
Installation and Adjustment
1. L ubricate p in io n b earin g s a n d o u ter races and
place drive p in io n in c arrier.
2. Place a new p in io n b e a rin g sp acer over p in io n so it
seats on in n e r race o f re a r b earin g .
3. Slide p in io n fro n t b e a rin g cone an d roller assem bly
over p in io n sh a ft so it seats a g ain st spacer.
4. Pack the cavity betw een the seal lips o f the pinion
flange oil seal w ith a lith iu m -b ase extrem e pressure
lubricant.
5. Place oil seal in c a rrie r bore a n d tap into position