Due to such deformity, the friction material got worn unevenly (Fig. The strengthening of the surface reduces the strain and alteration of the form of the bottom, which was often the case in the first generation of torque converters.
Also, the bottom surface of its back cover became thicker on the transmission lock-up piston side (Fig. And in most cases the problem is associated with transmission overheat and infrequent oil change.Īs a result of the modernization, the torque converter got equipped with additional shock absorbing springs. The main source of trouble for a TF-81SC owner is usually the torque converter and the valve body. Aisin Aw Tf-80sc Oil Torque converter TF-81SC We are going to have a look at the transmission of Land Rover Freelander 2 (Fig. As a result, some of the “congenital” disorders and failures have been eliminated.
In 2010, this transmission was slightly modernized. They have slight diffĮrences in their design – namely, in the valve bodies (besides, there may be different varieties for the same vehicle model), and the TF-81SC differs from the TF-80SC in the number of frictions. Some manufacturers used a special labelling for this transmission – AF21 (TF-81SC) for Ford and AF40-6 (TF-80SC) for Ford and GM, AM6 for Peugeot and Citroen, AW6A-EL for Mazda. These transmissions work with engines from 1.9 to 4.4 L, the torque limitation being 450 Nm. This transmission designed for the transfer of quite a high torque is installed in models of various vehicle classes – С (OpelAstra, Chevrolet Cruze), Е (Volvo S80), as well as CUVs (Mazda CX-7 and CX-9) and minivans, or multi-purpose vehicles (Renault Espace). In order to have six gears in such limited space, the designers used the Lepelletier-type gearset (see “AKPPro” #3, p.
That is why the transmission is quite space effective – its length is a mere 358 mm. The unit is intended for front-wheel and all-wheel drive vehicles with an east-west engine mounting. The Japanese company Aisin AW created the TF-80SC almost 15 years ago. Professional equipment for torque converter rebuilding. Aisin AW TF-81SC: A vigorous veteran Vladimir Nasonov Automatic transmission repair expert.
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