23. Thread in two dowels (arrow) that are used to align the pump. You can make these dowels the low-buck way by sawing the heads off a couple of bolts and then threading them in by hand. Slip the pump assembly down over the input shaft and onto the alignment dowels until the case and pump O-ring contact each other. Then, carefully push the pump assembly down by hand. The pump should go into place without hammering on it. If you have to force it in, either something is misaligned or clearances are incorrect.