Advertisement
3-48
STROMBERG CARBURETOR
ENGINE FUEL AND EXHAUST SYSTEMS
(122)
valve tight against drill while tightening lock
nut lightly with Wrench
T-25047.
Car Series
Carburetor Code No.
Drill
Size
40-50
7-69
1%4"
70
7-70
No.3
8. Remove drill and Setting Gauge T-25046.
Hold choke valve closed and tighten lock nut
securely,
using Wrench T-25047. Recheck choke
valve opening to be certain the setting has not
been changed. Do not try to change the position
of the piston lever without first loosening the
lock nut and serrated washer.
9. Make
certain
the choke
stem
operates
freely and that the choke valve will drop freely
of its own weight, then attach fast idle rod to
choke stem lever with a cotter
pin.
10. Place thermostat cover on housing with
thermostat hook in "down"
position.
Rotate
cover in direction of arrow until "V" punch
mark is located in line with indicator rib on top
of housing for Series 70 (code
No.
7-70), or is
one notch "lean" (clockwise) for Series
40-50
(code
No.
7-69). Install lug-washers and tighten
screws securely.
11.
Check adjustment of fast idle cam and
choke unloader (par. 3-30)
.
12. Install
.
carburetor assembly on engine.
When attaching choke upper heat pipe to
thermostat cover avoid excessive tightening
which may change the position of cover and
affect the thermostat
setting.
3-32 DISASSEMBLY, CLEANING,
INSPECTION OF STROMBERG
CARBURETOR
a. Removal and Disassembly
1.
Remove air cleaner and silencer. Discon-
nect throttle rod, accelerator vacuum switch
wires,
choke upper heat pipe, vacuum spark
control
pipe,
and gasoline pipe.
2. Remove gasoline filter assembly, then re-
move
carburetor
from engine.
3. Remove automatic chok
e
parts from air
horn as
described
in
paragrap h
3-31. Dis
con-
nect fast idle rod from fast idle cam by un
hook-
ing the cam spring from rod
.
4. Disconnect pump rod from pump lever by
pushing upward on spring housing on rod and
pulling outward. Remove pump lever fulcrum
screw (left hand thread) and spring washer;
then disconnect pump lever from stem of ac-
celerating pump
piston.
Figure
3-76-Removing Air Hom
5. Remove screws and lift off air horn as-
sembly with float attached. See figure 3-76.
6. Remove pump piston assembly from air
horn. Remove felt washer, splash washer, and
retainer spring from piston link.
Figure 3-77-Removing Needle Valve Seat a
nd
Float Hanger
Figure 3-7S-Removing Power Piston
Advertisement
