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ROCHESTER CARBURETORS Bulletin 9D-7 August, 1951 |
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Bulletin 9D-7
August, 1951
Model "BB"
Page 15
ROCHESTER PRODUCTS, DIVISION OF GENERAL MOTORS, ROCHESTER. NEW
YORK |
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CHOKE MODIFIER DISASSEMBLY AND ASSEMBLY
DISASSEMBLY
1. Loosen choke suction tube nut and disengage
from threads on choke housing.
2. Remove rod end clips from choke modifier
rod and remove rod.
3. Remove screw from choke modifier index
lever and remove lever. NOTE :
It is not necessary to remove index pointer.
4. Remove three choke stat cover screws and
retainers. Remove choke stat cover and coil assembly.
5. Remove throttle shaft choke modifier
lever.
ASSEMBLY
1. Assemble throttle shaft choke modifier lever
to throttle shaft. The letters RP should face outward and the lever should be pointed
towards the choke housing with the throttle valves closed. (Figure
15.)
2. Assemble the stat cover and coil assembly
and the three choke stat cover screws and retainers.
3. Assemble the rod end clips to each end of
the choke modifier rod and assemble the rod to the throttle shaft modifier lever and
the stat cover modifier lever.
4. Assemble the stat cover modifier lever to
the stat cover. This lever should be directed away from the fuel inlet. Tighten the
modifier lever retainer screw.
INSTALLATION OF CHOKE SUCTION
TUBE SEAL MODEL "BB" CARBURETOR |
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If the
choke suction tube seal in the throttle
body requires replacement proceed as follows: This operation must be performed
after carburetor is completely
assembled. (See Figure
16.)
1. Loosen Throttle Body to Bowl
Attaching
Screws.
2. Place new seal on lower end of tube and
slide against flared tube end. Flared side of seal must fit against flared tube
end.
3. Place flared end of tube with seal into
Throttle Body. Using Tool BT-45
tap lightly to hold seal into
Throttle Body. Rotate tube
while tapping seal so that it is started uniformly into Throttle
Body.
4. Install hex fitting and new packing on
upper end of tube and fasten
tube to choke housing by turning hex nut up linger tight.
Figure 16
5. Using tool BT-45 and hammer spread seal
into throttle body securely.
6. Check that tube is tight in throttle body
(will not turn) then tighten hex nut to choke housing securely.
7. Tighten throttle body to bowl attaching
screws evenly and securely.
Tub |
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