Mercury Mariner V-250 V-275 Outboard Service Shop Manual 1990, Page 134Get this manual
Quality of the image is intentionally reduced!
13 Lubricate crankshaft ends (oil seal areas) with light oil, apply Perfect Seal (92-34227-1) to end cap flange, then instaUlowerend capSecure end cap to cyl inder block with attaching boltsDO NOT tig