1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 492Get this manual
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CRANKSHAFT SPROCKETS or GEARS REMOVAL
Figure 12AInstall ing Cran ksh aft Gear and 48 2
Sprocket427
'OTE: On ;.27 and 482 enginesbe sure that remo pal tool will n