TDC? No. Just be sure to loosen a bit on each of the three #30 torx head bolts as there is some spring tension on the hpfp. I never have had to turn mine a bit to return the hpfp to the head. I just add some of my body pressure to the hpfp and tighten in the same manner...a bit on each bolt to carefully compress the spring inside. Check out my vid above and you will likely be able to knock it out yourself, yes?