Cadillac 60 Series 1963 Shop Manual page 267

10-32
FUEL A N D EXHAUST
10. Turn one idle mixture adjustment screw in
or out in order to obtain highest reading on both
vacuum gage and tachometer.
11. Repeat Step 10 with other idle mixture
adjusting screw.
12. Reset idle rpm. as noted in Step 9.
13. Repeat Steps 9-12 until turning mixture
screws will not cause an increase in engine idle
rpm, and the smoothest engine idle is obtained.
14. Press finger or eraser end of pencil on brass
valve of idle compensator located in secondary side
of carburetor to see if speed is affected because
compensator was open. If speed drops, readjust
carburetor as per Steps 9-13, being sure that
compensator remains closed. If idle compensator
stays open make adjustment by keeping valve closed
with pencil.
15. Install air cleaner and recheck idle. Make
fine adjustments if necessary.
16. On cars equipped with Rochester 4GC carbu-
retor, clip wires in their bracket.
17. Shut off engine and remove vacuum gage and
tachometer.
18. Connect parking brake vacuum diaphragm
line.
b. TV Rod Adjustment
If carburetor was removed, the TV rod was
disengaged. A simple adjustment can be made
as follows, assuming all other rods are in adjust-
ment. For a complete throttle rod and TV rod
adjustment see Note c.
s.
1. Start engine and be sure there is a clearance
at the throttle check.
2. Loosen front and rear TV rod lock nuts.
3. Open choke and seat the throttle valves in
the bores.
4. Push end of TV rod toward rear of car to
position transmission throttle lever against its
stop, and hold with light pressure.
5. Turn front locknut against trunnion until all
slack is taken up, then tighten nut three full turns.
6. Turn rear locknut into contact with trunnion
and use two wrenches to tighten nuts. Be care-
ful not to put any binding force on the carburetor •
plate.
7. Shut engine off.
c. Throttle Rod and TV Rod Adjustment
1. Using two wrenches, back off both locknuts
on TV rod at carburetor to allow free movement
of rod in trunnion.
2. Remove cotter pin and washer from carbu-
retor rod trunnion and remove from relay bracket
lever. On cars equipped with Cruise Control,
Cruise Control rod and washer are also detached.
3. Place 1/4 inch drill shank through gaging
hole in dash relay lever and into dash relay
bracket, Fig. 10-8.
4. With engine running set carburetor throttle
lever in hot idle position. (Air Conditioner "Off").
Throttle valves should be seated in bores.
5. Adjust carburetor throttle rod to allow free
entry into dash relay lever.
6. Install washer and cotter pin in trunnion.
On cars equipped with Cruise Control, install
Cruise Control rod with washer.
7. Push end of TV rod toward rear of car to
position transmission throttle lever against its
stop and hold with light pressure.
8. Turn front: locknut against trunnion until
all slack is taken up. Tighten nut three full turns.
9. Turn rear locknut into contact with trunnion
and use two wrenches to tighten nuts. Be careful
not to put any binding force on carburetor plate.
10. Remove drill from relay bracket.
11. Road test car. Adjustment may be altered
one turn either way to improve shift smoothness.
12. If 4-3 downshift cannot be obtained, check
carburetor for wide open throttle and choke unloader
operation with accelerator pedal fully depressed.
Perform accelerator pedal height adjustment if
necessary.
d. Acceleration Pedal Height Adjustment
1. Remove cotter key from trunnion on inner
side of accelerator pedal arm and remove trun-
nion from arm.
2. Adjust trunnion either up or down as required
to obtain wide open throttle with pedal fully
depressed.
3. Assemble linkage and install slush deflector.
e. Fast Idle Adjustment
1. Start engine and allow engine and transmission
to reach operating temperature; choke should be
fully open. Be sure parking brake is applied.