Find a way to punch the existing one into the block, it will not hurt anything in there. The put one of the expandable ones in place and tighten the bolt.
Ive never done one on that engine but have on many others. It is usually tight to get to but it should be doable.
Big JIm <img src="/forums/images/graemlins/pfft.gif" alt="" />

professional bovine relocation specialist