An aged gasket on the front head of the 3.5liter 2grfe V6 loses its sealing power and it can allow oil to leak down the front of the engine and the oil leak can drip on the exhaust. How to replace the valve cover on the left bank bank 2 front valve cover for the 2grfe 3.5liter V6 in a 2007 Toyota Camry. Similar to many other vehicls including Rav4, Highlander, Sienna, and Lexus ES350 and RX350. Includes the torque specifcation for the valve cover bolts. For the M8 bolts it is 15 ft.lbs. For the M6 bolts it is only 7 ft.lbs. For the vvti banjo bolt the torque is 48 ft.lbs. The tricky bits on this job are getting the harness and the vvti oil line out of the way enough to remove the valve cover.