1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 396Get this manual
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TABLE of CONTENTS Page Pa,'Engine Mec hanic al General, Inta ke and Exhaust Manifold xh OU Water Shutter Rocker Arm Cover Va lve MechanismVol ve Ad jus tment Valve Lifters Valve Stem and or Velve Spri