Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 223Get this manual
GEAR HOUSING
Propeller Installation
CAUTION
To prevent accidental engine starting remove (and isolate) spark plug lead from spark plugPut block of wood between anti-ventilation plate and propeller blade1Coat propeller shaft with one of the following Quicksilver products: aAnti-Corrosion Grease b2-4-C wTeflon Marine Lubricant 2Install thrust hub, propeller, washer and nut onto propeller shaft, starting propeller nut by hand