If you happen have your shaft out now would be a good time to replace your stuffing box hose. The thick hose on top is specifically made for stuffing boxes. It's robust 6 ply hose, and meant to take the abuse of a drive train. The thick hose on top is made by Buck Algonquin a manufacturer of quality bronze of packing boxes.
This Buck Algonquin hose sized for a 1 3/4" shaft log can be purchased from Hamilton Marine for about $9.00 or less. Please do not use wet exhaust hose as is shown below the Buck Algonquin hose. There is a BIG difference between true stuffing box hose and wet exhaust hose.
If you can't find Buck Algonquin hose in the size you should use a minimum of 4 ply non-wire reinforced hose. Do not use 2 ply or 2 ply wire reinforced hose.