I finally installed the cap/seal (under the car)and watched it pull side ways when it contacted the crank , go ta new cap from >I dont remember , maybe you know him !---LOL
I'm sure that a certain percentage of caps were off enough to pull the alignment way off. Usually the bolt holes have enough clearance to align the seal properly.
The original rope seals were very forgiving. Fore and aft as well as side to side alignment is what causes the problems with the modern seals.