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8-40
~
A1397-B
FIG. 45
-Rear
Oil Seal to
Block Installation
serts
will
distort the bearina and
cause a failure.
7.
Place the upper main bearing
inserts
in
position
in the
bores with
the
tang
fitting
in
the slot provided.
8.
Install
the
lower main bearing
inserts in the
bearing
caps.
9.
Carefully lower the
crankshaft
into place. Be careful
not to
damage
the bearing surfaces.
10.
Check the clearance
of each
main
bearing.
Place a piece of
Plastigage
on
the crankshaft journal
the
full width
of the
journal
and
about
!
inch
off centre
(Fig.
46).
Follow steps
11
through
13 under
Main Bearing Replacement.
11. After the bearings have been
fitted, apply a light coat of engine
oil
to the
journals and bearings.
Install all the bearing caps, except
the
thrust
bearing cap No.5 bearing.
Be sure that the
main
bearing
caps are installed in their orig-
inal locations. Torque the bearing
cap bolts
to
specifications.
12. Install the
thrust
bearing cap
with the bolts finger-tight.
13. Pry
the crankshaft
forward
against the thrust surface
of the
upper half of the
bearing (Fig. 47).
14. Hold
the crankshaft
forward
and pry the thrust
bearing
cap to the
rear
(Fig.
47). This will
align the
thrust surfaces
of both
halves of the
bearing.
IS. Retain
the
forward pressure
on
the
crankshaft.
Torque the cap
bolts
to
specifications.
16. Force
the crankshaft
toward
the rear of the
engine.
GROUP 8-
ENGINE
PLACE Plostigoge FULL
WIDTH OF JOURNAL
ABOUT '/
4
INCH
OFF CENTER
CHECK WIDTH
OF Plostigoge
PLASTIGAGE
A1023-A
FIG. 46
-Installing and
Measuring Plastigage-
Engine on Work Stand
17. lnstail a dial indicator so that
the
contact
point rests
against
the
crankshaft flange and the indicator
axis is parallel to the crankshaft axis
18. Zero the dial
indicator.
Push
the crankshaft forward and note the
reading on the dial.
19. If the end play exceeds speci-
fications, replace the thrust bearing.
If the end play is less than the mini-
mum limit, inspect the thrust bear-
ing faces for
scratches,
burrs, nicks,
or dirt. If the thrust faces are not
PRY CAP BACKWARD
FIG. 47-
Typical Thrust
Bearing Alignment
defective or dirty, they probably
were not aligned properly. Install
the thrust bearing
and
align the faces
following the recommended proced-
ure
(steps
12, 13, 14, and
15).
Check the end play which should
be within specifications.
20. Install new bearing inserts in
the
connecting
rods
and
caps. Check
the clearance of each bearing fol-
lowing the procedure under Con-
necting Rod Bearing Replacement.
21. If
the bearing clearances are
to
specifications, apply a
light coat
of engine oil to the journals and
bearings.
22. Turn the crankshaft throw to
the bottom of its stroke. Push the
piston all the way down until the
rod bearing seats on the crankshaft
journal.
23. Install the connecting rod
cap.
Torque the nuts to specifications.
24. After the piston and connect-
ing· rod assemblies have been in-
stalled, check the connecting
rod
side clearance on each connecting
rod
crankshaft
journal
(Fig.
34)
25. Turn the engine on the work
stand so
that the front end is up. In-
stall
the timing chain and sprockets,
cylinder front cover and crankshaft
pulley or damper, following steps 1
thru 3 under Cylinder Front Cover
and Timing Chain Installation.
26. Clean the oil pan, oil pump,
and oil pump screen.
27. Prime and install the oil
pump following steps 1, 2, and 3
under Oil Pump Installation. Install
the
oil
pan
following
steps
2
through 5 under Oil Pan Installa-
tion.
28. Position the flywheel on the
crankshaft. Apply oil-resistant sealer
to the flywheel retaining bolts. Install
and torque the retaining bolts to
specifications.
On a flywheel for a manual-shift
transmission, use a suitable tool to
locate the clutch disc. Install the
pressure plate.
·
29. Turn the
engine
on the
work
stand so that the engine is in the
normal position
.
Install the oil level
dipstick
.
Install and
adjust
the drive
belt.
3Q. Remove the engine from the
work stand
and install it
in the car.
CAMSHAFT BEARING
REPLACEMENT
The camshaft bearings are avail-
able pre-finished to
size
and require
no reaming for standard and 0.015-
inch undersize journal diameters.
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