Camshaft Gear/Sprocket

Using the flats on the camshafts to prevent camshaft rotation, tighten the 2 VCT (Variable Camshaft Timing) phaser and sprocket bolts in 2 stages.
Stage 1: Tighten the bolt to 50 Nm (37 lb-ft)
Stage 2: Tighten an additional 90 degrees