Camshaft Gear/Sprocket

Install 2 new bolts and the original washer. Tighten in 4 stages.
Stage 1: Tighten to 40 Nm (30 lb-ft).
Stage 2: Loosen one full turn.
Stage 3: Tighten to 10 Nm (89 lb-in).
Stage 4: Tighten 90 degrees.