If this doesn't cure the problem, replace the cable.Ģ. ![]() To correct this problem, try rerouting the cable. A sharply bent or damaged TV cable hosing. It should return to rest against the cable terminal (figure 10), it may be caused by one or more of the following conditions:ġ. Pull the end of the TV cable located on the throttle linkage, through its full range of travel, then release it. To check for this problem, run the engine at idle with the transmission selector in neutral and the parking brake set. At other times, the TV cable may stick or bind only when the engine off. A sticky or binding TV cable can result in delayed or full throttle upshifts (figure 9). Operating the vehicle under this condition will cause premature clutch wear and transmission malfunction.Ī TV cable that is sticky misadjusted, broken or incorrect for the vehicle can cause various transmission malfunctions. What you have effectively done is allowed the engine torque to be ahead of transmission line pressure and shift points. Under this condition, the TV cable will not readjust during a full throttle downshift. Lengthening the Cable : If you lengthen the valve, this lowers both line pressure and shift points. However, when the drive performs a full throttle downshift the TV cable will readjust to its approximate normal position. Shortening the Cable : If you shorten the cable (move it towards the adjuster tab), this raises both one pressure and shift point. Let's discuss briefly what happens when someone tailors the TV cable: However, remember that on the 700RR Transmission the TV cable controls both shift feel (clutch apply pressure) and shift points, you therefore cannot alter one without altering the other. Many people try to defeat the self-adjusting TV cable and tailor shift points of shift feel. If a change is made, such as a different carburetor installed, the change in geometry could disrupt this balance and proper adjustment may never be achieved. Simply put, due to this calibration, engine torque and transmission line pressure/shift feel will always be in balance. This means the transmission will always have the correct oil pressure and shift feel regardless of engine torque. When the TV cable is properly adjusted the movement of the TV plunger in the valve body is calibrated to the movement of the fuel delivery system. The proper adjustment of the TV cable is based on the TV plunger being fully depressed with the engine at wide-open throttle (see figure 9). This causes TV pressure and line pressure to increase according to throttle opening and also controls modulated and detent downshifts. The function of the throttle lever and bracket assembly I to transfer the movements of the throttle plate in the carburetor to the TV plunger in the valve body. The TV cable is connected to and operates the throttle lever, and bracket assembly mounted on the valve body. ![]() So if the TV cable is not adjusted properly, it can cause numerous transmission problems. The TV cable on the 700R4 and 200-4R transmissions controls line pressure, shift points, shift feel, part throttle downshifts, and detent (full throttle) downshifts. THE DAMAGE WILL OCCUR WITHIN A FEW FEET OF DRIVING THE VEHICLE! WARNING: PERMANENT DAMAGE WILL OCCUR IF THE T.V. Art Carr's 700r4 tv cable adjustment guide from
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