The engine was hitting on the starboard side clamp bracket as you lowered the engine probably a bit over an 1/8 of an inch it seemed like. here
See full version: 1985 mercury 9.9 tilt lock problem
The engine was hitting on the starboard side clamp bracket as you lowered the engine probably a bit over an 1/8 of an inch it seemed like. here
So with the engine home, we're now trying to figure out why the engine didn't want to go fully down into the locked position. more
Right now the engine is off the boat due to the impeller losing 5 of it's 6 blades and was getting very warm and barely shooting out water. more
I'm hoping either someone recalls seeing this issue in the past or would be kind enough to have a look through the Yamaha outboard service literature and see if there might be a written recommendation someplace out there.
Here is the parts guide for the area I'm working on with this engine model.
2006 and Later T8ELH Yamaha Outboard BRACKET 1 EH Diagram and Parts