putting my new 306 together, got it timed. when i went to install my distributor it went all the way down and stopped about an 1/8 of an inch from the block. i used the hold down to draw it down the rest of the way and i heard a light pop...was that the clip on the oil pump shaft moving? the distributor moves with the crank and is sitting flush with the block now. there is nothing in the oil pump thta would be damaged from that right?