Intake Manifold - Ford COUGAR 1968 Shop Manual

PART 8-3
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289 And 302 V-8
3. Clean the valve rocker arm
cover(s) and the cylinder head gas-
ket surface(s). Apply oil-resistant
sealer to one side of new cover gas-
ket(~). Lay the cemented side of the
gasket(s) in place in the cover(s).
4.
Position the cover(s) on the cyl-
inder head(s). Make sure the gasket
seats evenly all around the head.
Install the bolts. The cover is tight-
ened in two steps. Torque the bolts
to specifications. Two minutes later,
torque the bolts to the same specifi-
cations.
On Thermactor engines, install
the check valve(s) and connect the air
hose(s) to the check valve(s).
If the right cover was removed.
install the automatic choke heat tube
and the crankcase ventilation regu-
lator valve.
Connect the automatic choke heat
chamber air inlet hose.
Install the air cleaner and intake
duct assembly.
5. Install the spark plug wires in
the bracket on the valve rocker arm
cover(s). Connect the spark plug wires.
INTAKE M A N I F O L D
The intake manifold assembly is
shown in Fig. 22.
REMOVAL
1.
Drain the cooling system. Dis-
connect the automatic choke heat
chamber air inlet hose a t the inlet
tube near the right valve rocker arm
cover. Remove the air cleaner and
intake duct assembly.
2. Disconnect the accelerator rod
at the carburetor. Remove the ac-
celerator retracting spring.
On a vehicle equipped with vacuum
operated accessories, disconnect any
vacuum lines that are connected to
the intake manifold.
3. Disconnect the high tension
lead and wires at the coil.
4. Disconnect the spark plug wires
at the spark plugs by grasping, twist-
ing and pulling the moulded cap
only. Remove the wires from the
harness brackets on the valve rocker
arm covers. Remove the distributor
G A S K E T -9447
rNIFOLD-TO-BLOCK
REAR SEAL
9A42C
THERMOSTATIC
M A N I F O L D - T O - DISTRIBUTOR VACUUS
CONTROL VALVE
M A N I F O L D - T O - B L O C K F R O N T SEAL
A , , , ,
FIG. 22-Typical Intake Manifold Assembly
cap and spark plug wire assembly.
5. Remove the carburetor fuel in-
let line and the automatic choke heat
tube.
6. Disconnect the distributor vac-
uum hoses from the distributor. Re-
move the distributor hold down bolt
and remove the distributor.
7. Disconnect the radiator upper
hose at the coolant outlet housing,
and the water temperature sending
unit wire at the sending unit. Remove
the heater hose from the automatic
choke housing and disconnect the
hose at the intake manifold.
8. Loosen the clamp on the water
pump bypass hose at the coolant out-
let housing and slide the hose off the
outlet housing.
9. Disconnect the crankcase vent
hose at the valve rocker arm cover.
10. On Thermactor engines re-
move the air manifold hoses at the
air bypass valve and position out of
the way.
11. If the vehicle is equipped with
an air conditioner, remove the com-
pressor to intake manifold brackets.
12. Remove the intake manifold
and carburetor as an assembly. It
may be necessary to pry the intake
manifold away from the cylinder
heads, but be careful not to damage
the gasket sealing surfaces. Remove
the intake manifold gaskets and seals.
Discard the .intake manifold retaining
bolt sealing washers.
13.
If the manifold is to be dis-
assembled, identify all vacuum hoses
before disconnecting them, remove
the coolant outlet housing, gasket and
thermostat. Remove the ignition coil,
temperature sending unit, carburetor,
spacer and gaskets.
INSTALLATION
1.
If the intake manifold assem-
bly was disassembled, install the tem-
perature sending unit (threads coated
with electrical conductive sealer),
ignition coil, carburetor, spacer and
g a s b t s . Position the thermostat in
the coolant outlet housing. Coat the
thermostat gasket with water-resist-
ant sealer and position it on the cool-
ant outlet housing. Install the coolant
outlet housing, thermostat and gasket
assembly. Connect all vacuum hoses
following the schematic shown in Part
9-1.
2. Clean the mating surfaces of
the intake manifold, cylinder heads
and cylinder block. Use a suitable
solvent to remove all traces of oil.
Coat the cylinder block seal surfaces
with contact adhesive sealer.