The Great TV Mystery

The Solution!

Part Three: "Illnesses"

In part one we described the TV cable and how to set it to factory specification at wide open throttle. We learned the idle starting point of the TV valve was determined by the distance the TV cable travels out as the "carburetors linkage" is rotated back to its idle position. This happens because idle position of the TV cable determines the TV plungers starting position relative to the TV bushing. Subsequently this TV plunger position determines the TV springs position which in turn determines the TV valves starting position in the valve body. We also learned that everything this transmission needs to know must be communicated by TV feed fluid movement into the TV feed orifice. The Pressure and volume of the TV feed fluid into the feed orifice is 100% controlled by the TV valve as it moves to subsequently expose more and more of the TV feed orifice as the vehicles accelerator pedal is depressed. This requires a very precise relationship be established by the coordinated effects between two components! The distance the TV cable is allowed by the "carburetors linkage" to move outward as the linkage rotates back to idle from W.O.T. and the length of the TV spring.

In Part Two we described where the TV fluid is directed once it's allowed to enter the TV feed passage. We learned that TV feed fluid immediately effects line pressure, up shift timing and light to medium throttle down shift timing whereas heavy throttle downshifting events are more controlled by TV fluid being directed back to the TV plunger and TV bushing. Heavy throttle up shifts and Down shifts are controlled by the TV plunger's physical position inside the TV bushing relative to the part throttle and forced detent downshift ports. Part throttle downshifts are governed by TV