Grinding Noise When Shifting into Gear

[flounder_smacker]

im guessing your mechanic already check for slack in your shift shaft. if its out of adjustment it will make it grind and not snap into gear. the grinding noise you hear is the clutch dog trying to catch the prop gear. shifting slow or loose shift linkage is the main cause. as your clutch dog wears more it will start to jump out of gear when you are running wide open. it will feel like you are hitting a log or something. if you take this rig offshore ofter i would have a different mechanic look at it.