1990 Johnson Evinrude "ES" Cross V 88 thru 115, 150 thru 175, P/N 507874, Page 166Get this manual
r;-] 18Remove four screws (lower crankcase head to lower bearing retainer plate) and remove lower crankcase head from crankshaftRemove seal by driving out with punch and mallet, then discard sealRemove and discard the O-rings Discard the four lower crankcase head screwsAlways use new screws when installing the crankcase head 1561 19Inspect ball bearing at lower end of crankshaft and remove if damagedUse OMC Retaining Ring Pliers PIN 307429 to remove retaining ring under bearingUse OMC Universal Puller PIN 378103 with four 14-28 inScrews PIN 316196 threaded into the tapped holes in the bearing retainer plate to remove bearing57 20The center journal needle bearings and bearing races CD may be removed by removing the retaining ring Q) and separating the two halves of each bearingNote retaining ringgroove in bearing race faces bottom of crankshaft1581 21 Remove the rings from the pistons with suitable ring expanding toolInstall new ring sets on every powerhead overhaul1591 22Using tool as drawn on Page 4-9, or OMC Retaining Ring Pliers PN325937, remove the wrist pin retaining rings Discard the rings