Impreza WRX F4-2.0L DOHC Turbo (2004)
1. Place the oil pump bracket in a vise. Tighten the bushing using a 12.7 mm (1/2 inch) type 14 and 21-mm box wrench until it is in contact
with oil pump mounting surface.
CAUTION: Do not place oil pump bracket directly in the vise; use soft pads and hold oil pump lightly to protect the pump.
2. Tighten the bolt which installs oil pump to the bracket.
Tightening torque: 15.7 Nm (1.6 kgf-m, 11.6 ft. lbs.)
Tightening torque: 37.3 Nm (3.8 kgf-m, 27.5 ft. lbs.)
2. Tighten the bolt which installs power steering pump bracket.
Tightening torque: 22 Nm (2.2 kgf-m, 15.9 ft. lbs.)
