Important: If replacing the manual transmission type engine flywheel, note the location of any existing flywheel weights (if applicable). Install new flywheel weights into the new engine flywheel (if applicable). Flywheel weights must be installed into the new engine flywheel in the same location as the old flywheel weights in the old engine flywheel. A properly installed flywheel weight will be either flush or below flush with the face of the engine flywheel.