Pontiac tempest 1968 Service Manual page 403

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7 B - 8
1968 P O N T I A C S E R V I C E
M A N U A L
C O U N T E R S H A F T
J 2 2 2 4 6
F i g . 7 B - 1 3
Removing or Installing Countergear
all three keys are engaged by both springs (Fig.
7B-19).
The tanged end of each synchronizer spring should
be installed in different key cavities on either side
of hub. Slide sleeve onto hub aligning marks made
before disassembly.
NOTE:
A
groove
around
the
outside
of
syn­
chronizer
hub identifies
the
end that must be
opposite fork slot in sleeve when assembled.
This
groove indicates
the end of the hub with a greater
recess.
2. Wash front and rear bearings thoroughly in
cleaning solvent. Blow out bearing with compressed
air.
CA UTION:
Do not allow bearings
to spin;
turn
them slowly by hand. Spinning bearings will
dam­
age race and balls.
Make
certain
bearings
are
clean,
then
lubricate
with light engine oil and
check them for roughness
by slowly turning
race
by hand.
3 . Check for cracks in blocking rings.
TRANSMISSION CASE
1. Wash transmission case thoroughly inside and
outside with suitable cleaning solvent; then inspect
case for cracks.
2. Check front and rear case faces for burrs and,
if present, remove with a fine mill file.
3 . Check and clean magnet in bottom of trans­
mission case.
BEARING R O L L E R S
All
main drive gear and countergear
bearing
F i g . 7 B - 1 4 Removing Reverse Idler G e a r Shaft
rollers should be inspected closely and replaced if
they show wear.
GEARS
1. Inspect all gears for excessive wear, chips or
cracks.
2. Inspect reverse gear bushing and, if worn or
damaged, replace entire gear.
NOTE:
Reverse
gear
bushing
is
not
serviced
separately.
3. Inspect reverse idler gear bushing and, if worn
or damaged, replace entire gear.
COUNTERGEAR ASSEMBLY
1. Check for broken bearing rollers.
2. Inspect anti-rattle plate teeth for wear or other
damage.
3. Check for broken anti-rattle springs.
NOTE:
The anti-rattle
plate
is riveted
to the
countergear
in three
(3) places.
Disassembly
is
not recommended
(Fig.
7B-20).
FRONT BEARING RETAINER O I L S E A L
If lip seal in retainer needs replacement, pry out
old seal with screwdriver. Replace with new seal,
using flat plate, and tap until seal is seated in its
bore (Fig. 7B-21).
NOTE:
Lip of seal must face
rear
of
bearing
retainer.
TRANSMISSION—ASSEMBLE
MAINSH A F T - ASSE MB L E
1. Turn the front of the mainshaft upward and i n ­
stall second speed gear and synchronizer on main-
shaft.
Using hydraulic or arbor press and press

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