Throttle Valve Cable/Linkage: Adjustments

Fig. 1, TV cable and linkage:

Fig. 2, Throttle lever & bracket assembly:

The TV cable should not be thought of as an automatic downshift cable. It controls line pressures, shift points, shift feel, part throttle downshifts, and detent downshifts. The function of the cable is similar to the combined functions of a vacuum modulator and detent downshift cable. The TV cable operates throttle lever and bracket assembly, Figs. 1 and 2.

1. Stop engine.

Fig. 3, TV cable adjustment:

2. Depress readjust tab, Fig. 3, and move slider through fitting, away from lever assembly, until slider stops against fitting. Release readjust tab.
3. Open throttle lever to full throttle stop position to automatically adjust cable, then release throttle lever and check cable for sticking or binding. Do not use accelerator pedal to rotate the throttle lever, rotate it by hand at the carburetor.
4. Road test vehicle. If delayed or only full throttle shifts still occur, proceed as follows:

Fig. 4, Throttle lever & bracket assembly alignment:

a. Remove oil pan and inspect throttle lever and bracket assembly, Fig. 4.
b. Check TV exhaust valve lifter rod for distortion, or binding in control valve assembly or spacer plate.
c. Make sure TV exhaust check ball moves up and down in conjunction with lifter.
d. Make sure lifter spring holds lifter rod up against control valve assembly.
e. Make sure TV plunger is not stuck.

Fig. 5, Throttle lever to cable link:

f. Inspect transmission for correct throttle lever to cable link, Fig. 5.