My top bolt that holds the starter in place apparently fell out sometime this weekend. The bottom one needs tightening but is still in place. Does anybody know what thread pattern, diameter and length of that top starter bolt? Also, is there a sleeve that goes in there too from the starter side? From what I can see, it looks like the starter flange end where the bolt goes in is a larger diameter than the end where it threads out into the housing. Is that correct or is it just look that way to me? Thanks!