2001 Mercury Mariner 50-60HP Factory Service Manual, Page 516Get this manual
BIGFOOT GEAR HOUSING
4Install water tube seal; apply 2-4-C wTeflon to I.Dof seal5Apply bead of RTV Sealer as shown
NOTE: For ease of gear housing installation, install water tube seal (labyrinth end) onto water tube in drive shaft housingTapered end of water tube seal goes onto water pump95
RTV Silicone Sealer (92-91601-1) 2-4-C wTeflon (92-850736A1)
a -Water Tube Seal