Ford COUGAR 1968 Shop Manual page 511

PART 10-3
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Carter M o d e l
Y F 1 -V C
and piston assembly counterclockwise
until the choke piston is out of the
choke piston cylinder (Fig. 8). Remove
the assembly from the air horn. Re-
move the piston pin, piston, fast idle
cam, and fast idle cam spring from the
choke piston lever and shaft assembly.
7. Turn the main body casting up-
side down and catch the accelerating
pump check needle in your hand.
8. Disconnect the throttle shaft
arm spring. Loosen the throttle
shaft arm screw, and remove the arm
and pump connector link.
9. Remove the accelerating pump
diaphragm housing screws. Lift out
the pump diaphragm assembly, the
pump lifter link, the metering rod and
the fuel bowl baffle plate as a unit
(Fig. 9).
10. Disengage the metering rod
arm spring from the metering rod, and
remove the metering rod from the me-
tering rod arm assembly. Compress
the upper pump spring, and remove
the spring retainer. Remove the upper
spring, the metering rod arm assem-
bly, and the pump lifter link from
the pump diaphragm shaft. Com-
press the pump diaphragm spring,
and remove the pump diaphragm
spring retainer, spring, and pump
diaphragm assembly from the pump
diaphragm housing assembly.
11. W i t h the proper size jet tool
or screwdriver remove the low speed jet
(Fig. 10).
12. Remove the retaining screws
and separate the throttle body flange
assembly from the main body cast-
ing. Remove the body flange gasket.
13. Remove the idle mixture screw
and spring. Remove the throttle plate
retaining screws. File the staked ends,
i f
necessary, and use new screws upon
reassembly. Slide the throttle shaft
and lever assembly out of the throt-
tle body flange assembly.
ASSEMBLY
1. Install the throttle shaft and
lever assembly (Fig. I I) in the throttle
body flange. Position the throttle
plate on the throttle shaft with the
notch in the plate aligned with the
slotted idle port (Fig. 12) in the throt-
tle body flange. Install the throttle
plate attaching screws snug, but
not tight. Move the shaft back and
forth and rotate it to be sure the
throttle plate does not bind in the
flange bore. Reposition the plate if
necessary. Tighten the screws and
stake (or peen) the screws in place.
2. Install the idle mixture screw
and spring. Lightly seat the screw.
Then back it out (unscrew) I
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I 112
turns for initial setting.
THROTTLE
PLATE
N O ~ C H
8 3 0 3 3 - A
FIG.
72-Throttle Plate Installation
3. Place a new body flange gas-
ket and the main body casting on
the throttle body flange. Install the
attaching screws and tighten them
evenly.
4. With the proper size jet tool (or
screwdriver) install the low speed jet
and the metering rod jet (Fig. 10).
5. Install the pump diaphragm in
the pump diaphragm housing (Fig.
I I). Position the pump diaphragm
spring on the diaphragm shaft and
housing assembly. Install the spring
retainer. Install the pump lifter link,
metering rod arm and spring assem-
bly, and upper pump spring on the
diaphragm shaft. Depress the spring
and install the upper pump spring
retainer.
6. Install the metering rod on the
metering rod arm and place the loop-
ed end of the metering rod arm spring
on the metering rod as shown in Fig.
9. Align the pump diaphragm with
the diaphragm housing; make sure
the holes are cligned. Install the
housing attaching screws to keep
the diaphragm and housing aligned.
7. Position the fuel bowl baffle
plate on the pump assembly as shown
in Figs. 9 and 10. Align the
pump housing, pump lifter link, me-
tering rod and baffle plate with the
main body casting. Be sure the vac-
uum passage in the diaphragm hous-
ing is aligned with the vacuum pas-
sage in the main body. Install the
assembly in the main body casting, be-
ing careful to engage the pump lifter
link with the main body, the baffle
plate with the grooves in the main
body, and to insert the metering rod
in the metering rod jet. Install the
pump housing attaching screws snug,
but not tight. Push down on the dia-
phragm shaft to compress the dia-
phragm, and tighten the attaching
screws. Adjust the metering rod, fol-
lowing the procedure under Metering
Rod Adjustment.
8. Install the throttle shaft arm
and pump connector link on the throt-
tle shaft and pump lifter link (Fig.
13). Tighten the lock screw. Connect
the throttle shaft arm return spring.
9. Install the fast idle cam and
spring on the choke piston lever and
shaft assembly. Assemble the choke
piston and pin to the choke piston lever
and shaft assembly. Disengage the
cam spring from the cam spring lever
on the choke lever and shaft assembly.
Install the choke shaft assembly in
the air horn and position the piston
as shown in Fig. 8.
PUMP CONNECTOR L l N K THROTTLE SHAFT
LINK THROTTLE SHAFT ARM 83034-A
FIG.
73-Throttle S h a f t Arm
Installation
10. Align the piston with the cyl-
inder and rotate the shaft assembly
clockwise until the piston pin is inside
the piston cylinder. Position the cam
spring on the cam spring lever of the
choke lever assembly.
When the spring
is properly positioned, the tangs on
the cam and the choke lever will be
aligned one in front of the other.
11. Position the choke plate on
the choke shaft and install the screws
snug. Check the choke plate movement
to be sure it isn't binding. Tighten the
screws and peen or stake them to pre-
vent loosening.
12. Install the needle seat and
gasket in the air horn. With the air
horn inverted, install the needle, pin
spring, needle pin, float and lever as-
sembly, and float pin.
13. Adjust the float lever to speci-
fications.
14. Place the pump check needle in
the main body casting (Fig. 10).
Position a new air horn gasket, the
air horn assembly, and the anti-stall
dashpot and bracket on the main
body. Install and tighten the attach-
ing screws.