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12. Remove vacuum break rod by holding down on fast
idle cam (hot idle position); move end of vacuum
break rod away from float bowl; then disengage
rod from hole in intermediate choke lever.
Choke
1. Remove three attaching screws and retainers from
choke cover and coil assembly. Then pull straight
outward and remove cover and coil assembly from
choke housing. Remove choke cover gasket.
It is not necessary to remove baffle plate from
beneath the thermostatic coil. Distortion of the
thermostatic coil may result if forced off the center
retaining post on the choke cover.
2. Remove choke housing assembly from float bowl by
removing retaining screw and washer inside the
choke housing (Fig. 15MQ). The complete choke
assembly can be removed from the float bowl by
sliding outward.
3. Remove secondary throttle valve lock-out lever
from float bowl. (Fig. 16MQ).
4. Remove lower choke lever from inside float bowl
cavity by inverting bowl.
5. Remove plastic tube seal from choke housing (Fig.
16MQ).
CAUTION: Plastic tube seal should not be
immersed in carburetor cleaner.
6. To disassemble intermediate choke shaft from
choke housing, remove coil lever retaining screw at
end of shaft inside the choke housing (Fig. 15MQ).
Then remove thermostatic coil lever from flats on
intermediate choke shaft. Remove intermediate
choke shaft from the choke housing by sliding
CHOKE
ATTACH IN G
H O U S IN G
SCREW
RETAINING
SCREW
Fig. 15MQ— Removing Choke Housing
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LOCKOUT
PIN
outward. The fast idle cam can now be removed
from the intermediate choke shaft (Fig. 16MQ).
fo r bowl cleaning purposes. DO NOT A T-
Float Bowl Disassembly
1. Remove fuel inlet nut, gasket and filter (Fig.
17MQ).
2. Remove secondary air baffle, if replacement is
required.
3. Remove pump well fill slot baffle, if replacement is
required.
4. Remove throttle body by removing throttle body to
bowl attaching screws (Fig. 18MQ).
5. Remove throttle body to bowl insulator gasket (Fig.
19MQ).
THERMOSTATIC
COIL
LEVER
FUEL INLET NUT
CARBURETOR
TUBE SEAL
SECONDARY
FAST IDLE
LOCK OUT
CAM FOLLOWER
LEVER
Fig. 1 6 M Q —C hoke Housing Assem bly
CAUTION: Remove the cup seal from inside
choke housing shaft hole if the housing is to be
immersed in carburetor cleaner. Also, remove
the cup seal from the float bowl plastic insert
TEM PT TO REM O VE PLASTIC INSERT.
FILTER
SPRING
Fig. 17MQ— Fuel Filter
6M -15
REAR VACUUM
BREAK LEVER
FAST
IDLE
CAM
INTERMEDIATE
CHOKE SHAFT
TRUCK SUPP ■ OVERHAUL
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