NotBoyToyz

I just read the posts on installing the Drive sensor that looks like a distributor. I also purchased the shop manual. I have a new rebuilt motor that I am swapping all of my parts over to from a previous running engine. Well I have not removed the oil pump drive sensor yet from the running engine. It appears it is installed 180 degrees out. I put a piece of paper in the No 1 cylinder spark plug hole tight. rotated the engine around until the paper blows out line up the timing mark to 0 degrees and the oil pump drive sensor is installed 180 degrees out. I wanted to make sure I knew what I was doing before I did the swap. Also I know the sensor on the harmonic balancer has a rolled pin and can only be installed in one place. Should I install it in the new motor 180 degrees out?