1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 510Get this manual
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OIL PUMP REMOVAL
CL EAN ING 1 Wash al parts in
so lvent nd dry th em tboro ghwi th compre sed air2 Clean in id pump ou in and pr ess ur reli valve hambe with bru sh urthat dirt and meta pa