I have a 1978 115 hp Evinrude outboard and just had the water pump replaced along with the seals. I have not had any problems with shifting and/or grinding into forward gear prior to the water pump being installed. I took the boat out today, and when I shift into forward, I get the grinding noise and the boat won't shift/engage. Reverse works just fine. I have always looked to iboats forum for all my issues and have always found what I needed. I am looking for some advice and suggestions on what to do or look at.