Chevrolet 1963 Corvette, Repair & Tune-Up Manual

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224 CLUTCH AND TRANSMISSION
THROTTLE BODY LEVER
SLIDER DETENT CABLE
1981 Throttle valve (T.V.)
cable adjustment—
1981 and later
1968-72 detent switch adjustment—Turbo Hydra-
Matic 400
4. With the throttle held in wide open po
sition, move the switch forward until the
driver contacts the accelerator lever.
5. Tighten the mounting bolt and remove
the pin.
1973-77 TURBO HYDRA-MATIC 400
The switch is located over the accelerator
pedal. After installing a new switch, adjust-
ment is made by pressing the plunger in. This
presets the switch and it will self-adjust the
first time the pedal is fully depressed.
NEUTRAL SAFETY SWITCH
ADJUSTMENT
1963-65 Powerglide
Adjustment is made by varying the length of
the bellcrank-to-switch control rod. One end
of the rod has a swivel to allow adjustment.
1966-67 Powerglide and 1968-71 Turbo
Hydra-Matic 400
In all models the adjustment is made with the
shift lever in Drive position. Loosen the
switch mounting screws. Align the slot in the
contact support with the hole in the switch
and insert a
3
/az in. pin to hold the support in
place.
The shift control lever must be
disconnected from the control rod and the
shift control knob removed. Then remove
the trim plate to get at the switch. Proceed
as described in the first paragraph above,
then place the contact support drive slot
over the drive tang. Tighten the switch
mounting screws, then remove the pin.
Reinstall the shift control lever and trim
plate.
1972 Turbo Hydra-Matic 400
1. Disconnect the shift control lever arm
from the control rod.
2. Remove the shift knob.
3. Remove the trim plate.
4. Remove the control assembly retain
ing screws and lift the assembly away from
the seal.
5. Remove the netural switch from the
control assembly.
To install:
6. On early 1972 models put the shifter
into Drive or Neutral on later models.
7. Align the hole in the contact support
with the hole in the switch and insert a
3
/32
in. pin to hold the support in place.
8. Place the contact support drive slot
over the drive tang and tighten the switch
mounting screws. Remove the pin.
9. Install the control assembly mounting
screws. Connect the switch wiring and check
the switch operation.
10. Install the trim plate and shift knob.
11. Connect the shift lever arm to the
transmission control rod.
1973 and Later—All Transmissions
Use the 1972 THM 400 procedure outlined
previously except that during installation, the
shift lever is positioned in Drive. It is only
necessary to use the
3
/32 in. pin for alignment
when the original switch pin has been sheared
off.
LOCK TAB
FITTING
RE-
ADJUST
THROTTLE LEVER
PADDLE
PLUNGER