After replacing all the bellows, water inlet hose, and shift cable I put the outdrive back on being very careful when sliding it in to make sure the shifter was lined up correctly. When I went to hook up the linkage I could not get the 6 inches needed. I pushed the core all the way in until the prop locked in forward but in order to get the 6 inches needed I had to turn the brass barrel down to the jam nut and only then it was only 5-1/2 to 5-3/4. Can get neutral and reverse but not forward. What went wrong?