The second set is connected to the transmission output shaft and is referred to as the turbine. The first set of blades is attached directly to the converter’s case and forms what is called the impeller, or the pump. They are bolted to rear of the crankshaft at the transmission flex-plate, and generally rotate with the engine at RPM (similar to a flywheel). Torque converters are spherical metal cases that house three sets of blades. They also allow the transmission to be smoothly shifted through the range without requiring the throttle to be closed during the shift. It allows the engine to idle with the transmission in gear by internally disconnecting the engine RPM from the transmission. Torque converters are to the automatic transmission what a clutch is to a manually-driven transmission. There is a great animated video on showing how the torque converter operates. The individual pieces of the torque converter case are welded together at the seams to provide strength and rigidity. The torque converter case is mounted as shown to the flexplate with the front snout of the unit mating with the transmission input shaft.Ī series of directional blades which carry and transfer fluid make up the internals of the converter. Performance gains: well-balanced driveline, smoother shifts, maximize your engine’s power band Tip: Consult with torque converter manufacturers before selecting a new converter. Tinware: torque converter, transmission fluid Prices on ultra-high performance torque converters can run into the thousands of dollars, depending on application. Tools: standard socket set, standard wrenches, torque wrenchĬost: $200-300 (average for non-specialized units). Understanding And Installing Torque Converters
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