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1-62
GROUP 1- ENGINES
Tool
-
TSU·626 r
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rS6T·6250.A
(hmov"" or hpk>cerJ
NO.1
BEARING,
302 AND
JJ2
HD V-II ENGINES
Adop,
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_
T54T·6250
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(R
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;
Reproc",. Dctoj) 2)
NO.
2,
3,
4
OR
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BEARINGS,
302 AND 332
HD
v·a
ENGINES
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TS4T·62S0·B
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292 MO
AND
HD
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52l·6266·
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292 MD AND
HD
v-a
ENGINES
1001_
T52T·6266·CJD
302
AND
JJ2
HD
V·S
ENGINES
FIG.
54-Camshaft Rear Bearing Bore Plug
Installation-Typical
FIG.
53-Camshaft
Bearing Removal
or
Installation-
Typical
Installation
1. Oil the camshaft
and
carefully
slide it
through
the
bearings. Install
the spacer
and
thrust
plate. Be
sure
the c
hamfer
on the
inside of tbe
spacer
is
to
the
rear,
or
faces
the
camshaft
when it is Installed.
2.
Tighten
the retaining bolts to
12-15
foot-pounds
torque. Install the
woodruff
key, fue
l
pump
eccentric,
and collar (Fig. 51).
3.
Install the camshaft timing gear,
lock
plate,
and
retaining
bolts
(Fig.
39).
4.
Push
the camshaft toward the
rear
of
the
engine.
Place
a dial indi-
cator
so
the point rests
against one
of
the
camsha
ft
gear
retaining bolts
(Fig.
52). Set
the
dial
o
n
zero,
then
pull
the
camshaft forward and release
it. Com-
pare
the
dial reading
with specifica-
tions. If the
end
play is
excessive,
check the spacer for
correct
installa-
tion. Replace
the thrust
plate
and/
or
spacer
if necessary.
5_
Install the cylinder front cover,
crankshaft
damper,
and
drive
belts.
6.
Ins tall
the
fan
,
fuel pump,
and
radiator.
7.
Oil tbe tappets
and
slide the
m
into place.
Install
the
push
rods
in
their
proper
location.
S.
If
the
crankshaft
has
not been
rotated,
install
the
dist
ributor
using
the
marks
previously
scribed
on
the
distri
butor
body
and
engine block
as
guides.
If the
crankshaft has
been rotated,
crank
the engine
until
No. I piston
is
on
T.D.C., then
position
the
distribu-
tor
in the
block
with the rotor at
the
No.
I
firing
position
and
the breaker
points
open
and
install
the
hold down
clamp.
9.
Install
the
valve
push
rod
cham-
ber cover.
Install
the intake manifold.
Connect the fuel lines, and
acceler-
ator linkage.
Install
the carburetor air
cleaner.
Fill
and
bleed the cooling
system.
Fill
the
crankcase.
10.
Make a preliminary (cold)
valve
lash
adjustment.
Operate the
engine
for
a
minimum
of
30
minutes
at
approximately 1200
rpm, then
make
a
final
(hot)
valve
lash
adjust-
ment with
the
engine
idling.
Check
for
oil
and
coolant
leaks.
Install
the
valve rocker
arm covers. Check and
adjust the
ignition timing.
BEARING REPLACEMENT
It
will be
necessary
to remove
the
engine
from the truck
to
replace
cam-
shaft
beari ngs. Camsbaft
bearings are
available
pre-finished
to size
for
standard
and
O.015-inch undersize
journal
diameters. The No.
I
cam-
shaft
bearing
is
not interchangeable
with the other
bearings.
1_
Remove
the
engine
and mount
it on
a work
stand. Remove
the
fl
y-
wheel, crankshaft, and
the
camshaft.
Push
the pistons to
the
top of the
cylinders
to move
the
connecting
rods
out
of the
way.
2. Drill
a
Ih
-inch
bole in the cam-
shaft
rea
r
bearing bore
plug
and
use
tool
76oo-E to remove the
plug.
Re-
move the
camshaft
bearings (Fig. 53).
3.
Position the bearing at the
bear-
ing
bore,
and
press it
in
place
(Fig.
53).
Be
sure the
front
bearing is
installed
0.005-0.020
inch
(292
eD-
gine)
or 0.002-0.020 inch
(302 or
332 engine)
below the
front face
of
the cylinder block.
A
lign the
oil
holes in
the
beari ngs
with
the
oil
holes
in
the
cylinder block
when
the bearings
are installed. Particular
care
should
be taken with the No. 3
bearing since it
supplies
oil
to
the
valve rocker
arms.
4. Clean
the
camshaft
rear bearing
bore plug recess thoroughly. Coat the
flange
of
a
new
plug with water
re-
sistant
sealer
and
install it
with
the
flange
facing
in
(Fig.
54). Drive
the
plug
in
unlil
the
fl
ange is
flush
or
slightly
below the casting
surface.
5. Install
the
camshaft, cranks
haft,
flywheel, and related
parts.
Install
the
engine
in the
chassis.
TAPPET REPLACEMENT
292 ENGINI
Remove
the
camshaft.
Remove and
install one
tappet
at
a
time through
the bottom
of
the
block.
A flex ible
type
holding
tool
can
be used
for
thi
operation.
As
each
new
lappet is
in-
stalled,
it
should
be
secured in
the
up
position
.
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