Mercury Mariner 4 and 5HP 4-Stroke Outboards Service Shop Manual 1999, Page 211Get this manual
GEAR HOUSING
Propeller Installation
ACAUTION
To prevent accidental engine starting remove (and isolate) spark plug lead from spark plug Put block of wood between anti-ventilation plate and propeller blade 1Coat propeller shaft with one of the following Quicksilver products: aAnti-Corrosion Grease b2-4-C wfTeflon Marine Lubricant
2Install thrust hub (a), propeller (b)washer (c) and nut (d) onto propeller shaft, starting propeller nut by hand