Valve Spring, Retainer And Stem Seal; Replacement; Water Pump - Ford COUGAR 1968 Shop Manual

PART 8-3
-
289 And 302 V-8
VALVE SPRING, RETAINER
A N D STEM SEAL
REPLACEMENT
Broken valve springs, or defective
valve stem seals and retainers may be
replaced without removing the cyl-
inder head, providing damage to the
valve or valve seat has not occured.
1. Disconnect the automatic choke
heat. chamber air inlet hose at the
inlet tube near the right valve rocker
arm cover.
2. Remove the air cleaner and
intake duct assembly.
To remove the right valve rocker
arm cover, remove the automatic
choke heat tube. Remove the crank-
case ventilation regulator valve from
the valve rocker arm cover.
On Thermactor engines disconnect
the air hose(s) from the check valve(s).
Remove the check valves(s).
3. Remove the valve rocker arm
cover and the applicable spark plug.
4. Remove the valve rocker arm
stud nuts, fulcrum seats, valve rock-
er arms and push rods from the
applicable cylinder.
5. Install an air line with an
adapter in the spark plug hole and
turn on the air supply.
6. Install the stud nut and posi-
tion the compressor tool as shown in
Fig. 31. Compress the valve spring
a ~ ~ d remove the retainer locks, spring
retainer and valve spring.
7.
Remove and discard the valve
steam seal (Fig. 32).
8. I f air pressure has forced the
piston to the bottom of the cylinder,
any removal of air pressure will
allow the valve(s) to fall into the
cylinder. A rubber ,band, tape or
string wrapped around the end of
the valve stem will prevent this con-
dition and will still allow enough
travel to check the valve for binds.
NG.
31-Compressing Valve
Spring-In Chassis
9. Inspect the valve stem for
damage. Rotate the valve and check
the valve stem tip for eccentric
movement during rotation. Move the
valve up and down through normal
travel in the valve guide and check
the stem for binds.
I f the valve has
been damaged, i t will be necessary
to remove the cylinder head for re-
pairs as outlined in Part 8-1, Sec-
tion 2.
10.
If the condition of the valve
proved satisfactory, hold the valve
in the closed position and apply the
air pressure within the cylinder.
11. Install a new valve stem seal
(Fig. 32). Place the spring in posi-
tion over the valve and install the
valve spring retainer. Compress the
valve spring and install the valve
spring retainer locks. Remove the
compressor tool and stud nut.
Air line
SEAL
A 2653- A
NG.
32-Valve Stem Seal Removal
o r Installation
12. Install the push rod. Apply
Lubriplate to the tip of the valve
stem.
13.
Apply Lubriplate to the ful-
crum seat and socket and install the
valve rocker arms fulcrum seats and
stud nuts. Adjust the valve clear-
ance following the procedure in Part
8-
1, Section 2.
14.
Turn off the air and remove
the air line and adapter. Install the
spark plug and connect the spark
plug wire.
15.
Clean and install the rocker
arm cover.
If the right cover was removed
install the automatic choke heat tube
and the crankcase ventilation regu-
lator valve.
On Thermactor engines install the
check valve(s). Connect the air hose(s)
to the check valve(s).
16.
Install the air cleaner and in-
take duct assembly. Connect closed
crankcase hose.
17.
Connect the automatic choke
heat chamber air inlet hose.
WATER P U M P
REMOVAL
1. Drain the cooling system.
Remove the power steering, air
conditioner, and Thermactor drive
belts, if so equipped. Remove the
power steering pump and Thermactor
air pump.
2. Disconnect the radiator lower
hose and heater hose at the water
pump. Loosen and remove the drive
belt. Remove the fan, fan spacer and
pulley.
3. Loosen the bypass hose clamp
at the water pump.
4. Remove the bolts retaining the
pump to the cylinder front cover.
Remove the pump and gasket. Dis-
card the gasket.
INSTALLATION
Before a water pump is re-install-
ed, check i t for damage.
If
i t is dam-
aged, replace it.
1. Remove all gasket material
from the mounting surfaces of the
cylinder front cover and water pump.
2. Position a new gasket, coated
on both sides with water-resistant
sealer, on the cylinder front cover;
then install the pump.
3. Install the retaining bolts and
torque them to specifications.
Install the power steering pump and
Thermactor air pump is so equipped.
Install the power steering, air condi-
tioner and Thermactor air pump drive
belts if so equipped, and adjust the
tension to specifications.
4. Install the pulley, spacer and
fan. Install and adjust the drive '>elt
to the specified belt tension. Connect
the radiator hose and heater hose.
5. Fill and bleed the cooling sys-
tem. Operate the engine until normal
operating temperatures have been
reached and check for leaks.
CYLINDER FRONT COVER
A N D T I M I N G C H A I N
REMOVAL
1.
Drain the cooling system and
the crankcase.
2. Disconnect the radiator lower
hose at the water pump.
3. Disconnect the heater hose at
the water pump. Slide the water
pump bypass hose clamp toward the
water pump.
4. Loosen the alternator to cylin-