Last year I had my engine rebuilt. Not long after my starter went out or so we thought. Since rebuilding the starter we could not get the drive to mesh with the flywheel. After checking and even rebuilding the starter again the problem persisted. We then had another starter sent in and still the same thing. So, what could be causing this problem? Was the flywheel somehow installed wrong? Is there a spacer or shim missing? Please help we are stumped!