ROCHESTER PRODUCTS DIVISION. GENERAL MOTORS CORP., ROCHESTER.
NEW YORK
DISASSEMBLY OF BOWL COVER
1. Remove float hinge pin and carefully lift
float from cover.
2. Remove steel float needle from float needle
seat.
3. Remove 3 power diaphragm assembly attaching
screws. Remove assembly.
4. Using a l/2"
width screw driver, remove float needle seat with
gasket.
5. Grip cover in vise by fuel inlet boss. Using
a 3/4" wrench, remove fuel inlet nut, and screen. DO NOT PASS DRILLS OR WIRE THROUGH
CALIBRATED HOLES.
DISASSEMBLY OF HOUSING AND THROTTLE BODY
1. Remove balance tube from air horn. On later
models Balance Tube is not removable.
2. Remove 3 attaching screws with lugs from
choke housing cover. Remove cover and thermostat coil as an assembly.
DO NOT DISTORT COIL.
3. Remove choke valve screws and
valve.
4. Remove cotter pin from pump
rod.
5. Remove pump rod. DO NOT BEND PUMP
ROD.
6. Remove cotter pins from choke rod, remove
rod.
7. Remove choke counterweight attaching screw,
collar, washer and counterweight.
8. Remove choke vacuum piston and shaft by
revolving choke shaft until piston is free from cylinder.
9. Remove 3 housing to throttle attaching
screws.
10. Remove pump yoke nut and lock
washer.
11. Remove pump yoke from inside of
housing.
NOTE: There is a small felt
washer in the counterbore of housing (outside), when removing nut or
yoke use care so as not to lose felt (packing)
washer.
