Prop Shaft Seal

Install and Maintenance

First off let me say thank you for purchasing my products.

Installation: Remove old shaft log seal. Keep prop shaft in boat. Deburr end of prop shaft on outside diameter using a file or stone. Flatten out old set screw burrs on prop shaft using file or a stone and finally some emery paper. Remove all sharp edges from keyway so it will not damage the grease cup seal in the shaft log seal when installing. After the prop shaft is fully deburred apply some light grease or WD-40 to the prop shaft to help the shaft log seal slide on easily. Slide the shaft log seal gently over the prop shaft taking care not to damage / cut the grease cup seal. Slide the shaft log seal into the rubber hose that is attached to the shaft log in your boat. Reattach prop shaft to v-drive then tighten hose clamps on rubber hose to shaft log seal. This will let the prop shaft log seal follow the prop shaft instead of being crooked inside of the rubber hose.

Greasing: I use the Lubrimatic blue/green in color marine grease. Place v-drive / transmission in neutral. Using a grease gun, give 3-4 shots of grease into shaft log seal. Then rotate the prop shaft by hand a few times. This is dragging the grease around the grease reservoir in the shaft log seal. Repeat this process until you feel resistance on the grease gun. Meaning the grease reservoir is full.

How Often: On my cruiser I grease it before every day trip. On Tony Leaman's 8.0 second race boat we refill the shaft log seal every pass.

Thank you again, Phil Scherzer