Mercury Mariner 4, 5 102CC Sail 1990 Outboard Service Shop Manual, Page 109Get this manual
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4 Install water pickup tube seal (a)lubricate 1.0of seal with 2-4-C Marine lubricant 6 Insta ll water pickup tube (a) into seal as shown
BApply 2-4-C Marine lubri cant water pump impeller9 Whi l