1988 "CC" Colt / Junior thru 8 Models Service Manual, P/N 507659, Page 181Get this manual
Removal of Upper Crankcase SealColt, Junior thru 8 The presence of oil under the flywheel could indicate leaking upper crankcase sealThe upper crankcase seal can be replaced without disassembly of crankcase Remove the flywheel as described in Section 3Use OMC Seal Remover, PI 391060, to remove and install the seal Use tip "A" on 2.5 thru Deluxe models Use tip "8" on thru models Use tip "C" on Colt, Junior models
To remove seal, install tip into removerinstaller bodyThread removerinstaller body with tip into seal to engage metal case While holding removerinstaller body, turn pressing screw and remove seal