That dampener goes all the way against the timing gear, trapping the flinger ring in between and holding everything tightly sandwiched. So if the snout does not stick out too far, the problem would have to be in around the timing gear. Either the shoulder it goes against is wrong or it's not seated or it is too wide. You need to measure everything from the #1 main bearing out. I would then assemble without the timing chain and timing cover to see why it is not seating.