1997 Johnson Evinrude "EU" 90, 105RW, 115, 150, 150W, 175 60 LV Service Repair Manual, P/N 507268, Page 153Get this manual
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[] 7 Separate crankcase and cylinder blockIt may be necessary to tap on crankshaft with rawhide or rubber mallet to loosen[] 8 Remove upper seal from crankshaftDiscard the sealA new upper seal must be