Cadillac 60 Series 1963 Shop Manual page 257

10-22
FUEL AND EXHAUST
1. Install choke baffle plate.
2. Install choke cover and gasket. Rotate
counterclockwise until cover choke valve is just
closed and index marks align. Set one notch
rich, and tighten three cover screws with r e -
tainers.
r. Choke Rod Adjustment (Fig. 10-28)
1. Position fast idle screw on second step of
fast idle cam, with screw resting against shoulder
of highest step.
2. Hold choke valve closed so that choke trip
lever is in contact with choke counterweight
lever.
3. With fast idle screw and cani in this position,
carefully bend choke rod to obtain a clearance
of .040 inch, as measured with .040 inch Wire
Gage, j-7714-6, between top edge of choke valve
and dividing wall in air horn. Use Bending Tool,
J-1137.
s. Choke Unloader Adjustment (Figs. 10-29)
and 10-30)
1. With choke trip lever in contact with choke
counterweight, move throttle to full open position.
2. Hold in this position and carefully bend
tang of fast idle cam to obtain a clearance of
1/8 inch, as measured with .125 inch Gage,
J-7714-7, between top edge of choke valve and
dividing wall in cover, Fig. 10-29. Use Bending
Tool J-5197, Fig. 10-30, on fast idle cam tang.
Choke Valve
.125 Gage
J-7714-7
Throttle Lever
Choke Unloader Tang
Bending Tool J-5197 Choke Unloader Tang
Fig. 10-29 Choke Unloader Adjustment
Fig. 10-30 Bending Unloader Tang
t. Secondary Throttle Opening
Adjustment
1. With carburetor inverted, move choke to
fully opened position.
2. Rotate primary throttle to full open position.
3. Check opening of secondary throttle valves.
They should reach wide open position at the
same time as primary valve.
4. Check wide open stops on primary and
secondary throttle shafts, and bend tangs with
heavy pliers as required to obtain wide open
positions. Tangs should contact stops at same
instant.
u. Secondary Throttle Lockout Adjustment
(Figs. 10-31 and 10-32)
1. Position fast idle cam and secondary lockout
lever with choke valve partially closed, Fig.
10-31.
2. Check clearance between upper edge of lever
and cam with .015 inch Wire Gage, J-7714-8.
3. Use pliers to bend secondary lockout lever
to obtain proper clearance.
4. Open choke valve and open secondary throttle
slightly to position lockout lever over fast idle
cam, Fig. 10-32.
5. Measure clearance between lever and cam
in this position with .015 inch Wire Gage,