Exhaust Manifold Installation Figures 12-92 Install or Connect 1 . Exhaust manifold gaskets. 2 . Exhaust manifold. 3 . Heat shield. 4 . Exhaust manifold bolts and / or nuts. Tighten • Bolts in two steps, beginning with the two center bolts: A . Bolts to 15 N·m (11 lb· ft.). B . Bolts to 30 N·m (22 lb· ft.). Figure 12-92 Exhaust Manifold Flywheel Housing Installation 1 . Place the flywheel housing to location. 2 . Install the eight bolts that hold the flywheel housing to location. Tighten the bolts to a torque of 40 to 45 N·m (30 to 35 lb·ft.) 3 . See Testing and Adjusting for correct procedure to check flywheel housing runout. G643 (E) Service Manual Chapter 3. Engine Mechanical System 107