You can find angular alignment reference details to the timing belt system in the shape of a small protrusion to the oil pump as well as the matching notch eliminate with the timing belt travel pulley’s rear flange. For no explicable rationale the timing marks / notch to the Blacktop https://blacktop-4age-for-sale83214.bloginder.com/32805794/a-review-of-4age-20v-turbo-engine-for-sale