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PART 8·2-. 200, 250 C.I.D. SIX CYLINDER ENGINES
8-41
THRUST BEARING
CAMSHAFT BEARING (LOOSE)
FIG. 48- Typical Camshaft Bearing Replacement
1. Remove the ftywlleel and the
camshaft. Remove the rear bearing
bore'plug (Fig. 28).
2. Remove the camshaft bearings
with the tool shown in Fig. 48.
3. Fit the tool shaft and adaptors
to the camshaft bearing tunnel
bores,
position two adaptors as guides to
locate the shaft and one behind
the bearing to be removed, fit the
slotted collar to the shaft behind
the adaptor being used to withdraw
the
bearing.
Ensure that it fits snugly on the
shaft. Attach the U plate on the
front of the shaft, the pin engaging
with the keyway in the shaft. Fit
the thrust bearing and wing nut,
tighten slowly and remove the bear-
ing from the
block.
4. Repeat the procedure for each
bearing.
5. Replacement. Check bearing
bores for scratches and
burrs.
Posi-
tion the new bearing on adaptor and
replace with similar procedure as
for removal. Align the oil holes in
the bearings with the oil holes in
the cylinder block when the bearings
are installed. Repeat the pro<:edure
for each bearing. Be sure the front
bearing is installed 0.115"
-0.125"
below the front face of the cylinder
block.
6. Clean out the
f
amshaft rear
bearing bore plug recess,
thoroughly.
Coat the flange of a new plug with
oil-resistant sealer and install the
plug with the flange edge of the
plug facing outward.
7. Install the camshaft, crank-
shaft, flywheel and related parts,
following the appropriate procedures
on page 8 ·3
i ,
except do not check
connecting rod and main bearing
clearances as a part of Camshaft
Bearing Replacement. Install the eng·
ine in the car.
CYLINDER ASSEMBLY
REPLACEMENT
DISASSEMBLY
Follow steps 1 to 3, 5 to 13, and 24
under Engine Disassembly. Remove
the cylinder assembly from the work
stand.
CLEANING
Clean the gasket and seal surfaces
of all parts and assemblies (refer to
Page
8-19.
ASSEMBLY
Install the replacement cylinder
block assembly on a work stapd.
Transfer all parts removed from the
old cylinder assembly to the new
cylinder assembly, following the pro-
cedures in steps 28 to 44, 47 to 50, 54
and 56 to 58 under Engine Assembly.
Check all assembly
clearances.
CYLINDER BLOCK
REPLACEMENT
DISASSEMBLY
Follow steps 1 to 3, 5 to 19, 21 and
24 under Engine Disassembly. Re-
move the cylinder assembly from the
work
stand.
CLEANING
Clean the gasket and seal surfaces
of all parts and assemblies (refer to
Page 8-19.
ASSEMBLY
Install the replacement cylinder
block assembly on a work stand.
Transfer all parts removed from the
old cylinder assembly to the new
cylinder assembly, following the pro-
cedures in steps 1 to 4, 6 to 9, 11 to
21, 28 to 50, 54 and 56 to 58 under
Engine Assembly. Check all assembly
clearances.
ENGINE DISASSEMIL Y
1. Disconnect the distributor vac-
uum line at the carburettor.
2. Disconnect the carburettor fuel
inlet line at the fuel pump. Dis-
connect the distributor vacuum line
at the distributor. Remove the fuel
inlet line and distributor vacuum line
as an
assembly.
3. Remove the carburettor and
gasket. Remove the exhaust
mani-
fold.
(Previously removed on 250-2V)
4. Remove the coil. Remove the
distributor cap and spark plug
wires as an
assembly.
Remove the
distributor, fuel pump, oil pressure
sending unit, oil filter and oil filter
mounting insert. Remove the spark
plugs.
5. Remove the valve rocker arm
cover.
Remove the valve rocker arm
shaft assembly (Fig. 12) by removing
the support bolts evenly and equally
2 turns at a time.
6. Remove the valve push rods in
sequence
and.
identify them so that
they can be installed in their original
positions (Fig. 13).
7. Remove all cylinder head
bolts.
Lift the cylinder head assembly off
the
engine.
Do not pry between the
bead and block as the gasket sur-
faces may become damaged.
Usi'lg a magnet, remove the valve
lifters and 'keep them in order so
they can be installed in their original
location (Fig. 26).
On a flywheel for a manual-shift
transmission, mark the pressure plate
cover so that it can be replaced in
the same position. Remove the
clutch
.
pressure plate and
cover
assembly.
Remove the flywheel. Remove the
clutch pilot bearing
(Fig.
3Y) and
engine rear cover plate.
8. Remove the dipstick and the
oil pan. Discard the gasket and
seals.
9. Remove the oil pump and inlet
tube assembly. Discard the oil pump
gasket.
10. Loosen the alternator
mount-
ing bolts and disconnect the alter-
nator adjusting arm at the water
pump. Remove the drive belt.
11. Remove the alternator, and
the water pump. Remove the crank-
shaft damper. Remove the damper
by using tool 6306 AG.
12. Remove the cylinder front
cover. Discard the gasket. Check the
camshaft end play by following step
15 under Camshaft Removal. Check
timing chain deflection by following
step 4 under Cylinder Front Cover
Removal.
13. Remove the camshaft sprocket
re.
t aining bolt and washer. Slide both
sprockets and the timing chain for-
ward and remove them as an assem-
bly (Fig. 22).
14. Remove any ridges
and/
or
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