Jeep UNIVERSAL CJ-2A - Page 204

'J eep' UNIVERSAL a nd 'J eep' DISPATCHER
FIG. 250 PINION SHAFT FRONT
BEARING CUP DRIVER
W- 101 - 3A (from W -99 kit) for all axles requiring
gauge blocks A thru E.
W -101-16-A (from W -99-A ki t) f or all axles requi r-
ing gauge blocks A tbru F.
W - 101 -14A (fr om W-99-B ki t) for a!l axles re quir-
ing gauge blocks A thru G .
Thre e ga ug e bloc ks are cu rr ently used :
W - 10 1-11 (in W-99 and W -99-A kits ) ha s A, B , C ,
D, m ar kmgs .
W -101-13 (in W -99-A ki t; sup ersedes W-101-9 in
W - 99 kit and o nly mark ed for E gauge) has E
and F mark in gs.
W -101-17 (in W -101- 21A ki t) has G markings .
A
suppl ementary ki t, W-101- 21 A. will adapt eit h er
W -99 or W - 99-A basic kit to us e for model 70 axl e
us ed on FC-1 70 dual - rear - whee l models. It includes
spa cer W - 101 -19 n eeded for model 70 axle used on
FC -170 dual -r ea. r -whe<::l models. This suppl emen-
tary kit plus W - 10 1-24 gaug e block will make a
W -99-A
kit equal to a W-99-B kit.
Subs t ituting W -I 01 -1 6A C- clamp aligning fixture
for W - 101 - 3A and adding W-10 1-13 gaug e block to
the W -99 kit will bring a W-9 9 kit up to includ e th e
same items as a W-99 -A ki t.
Th e cor r ect gauge for settin g axles covered in this
book is indi cated in Par N-1 0.
N-10. Driv e Pinion Adjustmen t
• R efer to Fig. 252.
Before attempt ing to adjust the ring gear back lash
and ru n out, the drive pinion shoul d be ca r efully
c he ck ed and adjusted. Th e pinion is correctly
positioned in r elat ion to the ring gear by the us e
of shims whi ch are placed between the inn er
bearing c up and the housing. Thes e shims ar e
ava il able in t hes e thicknesses:
.003" [0,076 mm.) .010" [0,254 mm. )
.005" [ 0,127 mm. J
Should it be necessary to remove and replac e the
pinion sh aft bearing cups, this may best be accom ·
plish ed by using pinion shaf t bearing pullers as
described in Par. N- 7.
Wh en using this gauge do not install the oi l seal
until the pinion is adjusted. Use sleeve Tool
W -162, in place of the universal joint yoke to
hold the pinion in position for adjustment.
This gauge is equipped with a dial indicator which
measures the distance from the finished surface on
the head of the pinion to the cent er line of t he
differential carrier bearing. Es tablishing this dis -
tance determines the co rrect amount of shi ms to
be installed to provid e the correct positioning of
the drive pinion. All pinions are mark ed on the
head with a dimension indicating th e pro per
number of thousandths of an inch they must be
adjusted either plus or minus from standa rd. For
exa mple, a pinion ma r ked plus three m eans it
m ust be adjusted .003" [0,076 mm.] furth er aw ay
from the ring gear center than standard an d t he
gauge dial must r ead plus .003" when the pinion
is co rr ect ly shimmed.
M aster gauge blocks are supplied with this t oo l
so that the o riginal zero or standard dimension
is acc ur ately and eas ily established. Th e gaug e
blocks provide eight different standards for dif -
ferent axles. Th e eig ht standards are indica ted
withA, B, C. D. E, F , G,andHmarkingss ta mped
on th e ga uge blocks. Use onl y the blo cks listed
below for th e axles co ve red here.
M odel 23 Ax le . . . . . . . . . . .
M odel 25 Axle
(4 .27 :1 R at i o).
M odel 25 (all ot h er ratios) . . . .
M
odel 27 Ax le
.. ....... .D
M odel 44 Ax le
... ..... .G
.. ........ D
.. H
. E
Th e dial gauge is s et to the master gauge for the
different axles as shown in Fig . 252. Use the correct
master gauge surface for the mode l axle being
adjusted. H old the dial indicator and gauge as
shown and s et th e dial bezel to position the hand
at zero with one-half t urn tension on the gauge pin.
This sets the dial to register at zero when mounted
in th e axle when the dis ta n ce between the finished
he ad of a standard pinion and the center of the
differe nli al ca rri er is spanned. After setting th e
dial,
us e ca re not to j ar it or t urn the bezel to di s-
turb th e settin g. Ass emble the pinion in the case
with the sam e thickness shim packs originally in-
stalled and witho ut the oil seal.
FIG . 251 PINION ADJUSTING FIXTURE
1- Oint In dicator
2- Pini on
3- Seol
4- V okc
5- Thumb Screw
6- Guide Pin
7-C· Clnmp
8-S lc cvo
9- Bcarinl!
1 0- Housin&
11 - Statio n ary Guid e Pin
12- 0ifferential Housin g
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