Tighten • Coolant drain plug and/or knock sensor to 14 N · m (124 lb. in.). • Drain plug to 25 N · m (18 lb · ft.). Engine Flywheel Removal Figure 12-3 Remove or Disconnect 1 . Engine flywheel bolts. 2 . Engine flywheel. Exhaust Manifold Removal Figure 12-4 Figure 12-4 Exhaust Manifold Remove or Disconnect 1 . Exhaust manifold bolts and / or nut. 2 . Heat shields. 3 . Exhaust manifold. 4 . Gaskets. Figure 12-3 Engine Flywheel G643 (E) Service Manual Chapter 3. Engine Mechanical System 61