The water pump assembly installation begins by placing a new water pump gasket and tightening 16 bolts with Bolt A receiving 21 Nm (214 kgf-cm, 16 ft-lbf) torque and Bolts B and C requiring 9.1 Nm (93 kgf-cm, 81 in-lbf). The threads of Bolt A need to stay oil-free and the 2 bolts C must be replaced or can be reused after Toyota Genuine Adhesive 1344 (or equivalent) application. Before continuing install new water inlet housing gasket followed by water outlet pipe O-ring then attach water inlet housing through 2 bolts together with a nut while tightening to 10 Nm (102 kgf-cm, 7 ft-lbf) while carefully avoiding O-ring pinching. Apart from the water pump pulley installation, use Service Tools 09960-10010, 09962-01000, and 09963-00700 to scaffold the pulley while tightening bolts to 21 Nm (214 kgf-cm, 16 ft-lbf). After installing the 5 bolts for the V-ribbed belt tensioner assembly at 43 Nm (438 kgf-cm, 32 ft-lbf) torque, put on the idler pulley cover plate together with its sub-assembly using one bolt torqued to 43 Nm (438 kgf-cm, 32 ft-lbf). Conclude the installation process by putting in the generator assembly followed by engine hangers then remove the engine stand and lastly install the engine assembly into the transaxle.