So, earlier in the week i purchased a sled that needs some work. When i opened the hood i saw that the rotary valve cover had been removed. It needed a new oil pump so im guessimg it was taken off to make the oil pump removal easier. Anyways, my question is as follows. If i havent removed the actual rotary valve (disk) do i neccesarily need to retime it before reassembly or am i good to go? Another thing i was wondering is does the rotary valve have to be in any particular position before reassembling the rotary valve cover or can i just slap it on and letter buck?