Mercury Mariner V-250 V-275 Outboard Service Shop Manual 1990, Page 134Get this manual
13Lubricate 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 tighten end cap bolts at this time 16Place locati ng washers on connecting rod17Carefu lly position piston over end of rod Make sure locati ng washers remain in place
aocating Washers End Cap Flange
14Place needle bearings on clean piece of paper and lubricate with Quicksilver Needle Bearing Lubricant (92-42649A1 )NOTE: there are 34 needle beari ngs per piston15Place sleeve which is part of piston pin tool (9 192973A 1) into connecting rod and install needle bearings around sleeve as shown