Inboard Motors Mercury Mercruiser 1964-1991 service manual, Page 358Get this manual
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COOLING
l(21 11 -Gasket 12-PlugWater Drain Plug Lockwasher (4){4)Exhaust Elbow 17 Water Separation Tube 18 -Gasket 19 Stud (41 SOExhaust Manifold 21 -Gasket 22 End Cap (rear) Bolt (4) -Water Dra