Centre the bearing in the carrier (With the tool in the coupler as much as it will go without hitting it in, smack left right up down, but not with a 10kg lump hammer! Your hand is enough).
Then you get to adjusting the engine mounts (adjust both mounts, left and right, evenly) raising or lowering the front of the engine until the tool slides in and out easily and the grease marks are even all way around the end of the tool.
If the grease marks are heaviest on the bottom, the coupler is too high, and the front of the engine needs to go up. Remember, the engine 'pivot point' is the rear mounts, and they are (just) FORWARD of the coupler, so the coupler goes opposite to the front of the engine. Front (of engine) up, coupler goes down. Front down, coupler goes up.
Chris...........