couple of ways
With motor running- look at HB and see wobbling (how I found mine)
With motor off- from the ground looking up, look for rubber squeezing out of HB on the oil pan side
With motor off- verify timing. #1 on tdc, make sure timing pointer is pointing at 10*btdc (or what ever you have base timing set to.
You may only have 1 sign or all of them.