There are actually angular alignment reference details with the timing belt procedure in the shape of a little protrusion on the oil pump and also the matching notch cut out on the timing belt drive pulley’s rear flange. For no explicable purpose the timing marks / notch around the Blacktop https://4age20vturboengineforsale48147.wizzardsblog.com/32127098/how-much-you-need-to-expect-you-ll-pay-for-a-good-toyota-4age-for-sale