Ford 300 I6 (6-300) Combination Manifold Tightening Sequence Diagram - Fig. 70

This is a scanned page from an automotive service manual showing the tightening sequence for the combination intake/exhaust manifold on the Ford 6-cylinder 300 cubic inch (6-300) engine. The top of the page shows the tail end of an installation procedure, including a partial step referencing linkage and step 17, 'Install the air cleaner.' The main content is Fig. 70, an illustration of the combined intake and exhaust manifold assembly viewed from the side, with numbered callouts 1 through 13 indicating the order in which the manifold fasteners must be tightened. Several fastener positions are specifically labeled 'NUT' (positions 4, 12, 13, and a lower center fastener), distinguishing nuts from bolts in the sequence. A 'FRONT' arrow at the lower left orients the diagram relative to the engine's front. The sequence begins at position 1 near the center of the manifold and works outward in an alternating pattern toward the ends. A reader can use this figure to correctly torque the combination manifold fasteners in the proper order when reinstalling the manifold on a Ford 300 inline six engine, such as those used in Ford trucks and Broncos. No torque values or year applicability are printed on this page.