How to remove and install Flywheel on Toyota Prius?

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To remove the engine/transaxle assembly on a 2003 or earlier model, first separate the transaxle from the engine, while for a 2004 or later model, simply remove the transaxle. Next, take off the six bolts and lift the transaxle damper from the flywheel. Use a center punch or paint to create alignment marks on the flywheel and crankshaft to ensure correct alignment during reinstallation. Remove the bolts securing the flywheel to the crankshaft, using a strap wrench to hold the crankshaft pulley and wrapping it with an old drive belt to avoid damage. After that, take off the flywheel from the crankshaft. For installation, clean the flywheel to eliminate grease and oil, inspecting it for any cracks or damage, and remove light scoring with emery cloth. Clean and inspect the mating surfaces of the flywheel and crankshaft, replacing the crankshaft rear seal if it is leaking. Position the flywheel against the crankshaft, aligning the previously made marks, and ensure proper installation using alignment dowels or staggered bolt holes if applicable. Before installing the bolts, apply thread-locking compound to the threads, then hold the flywheel from turning and tighten the bolts in a criss-cross pattern. Finally, complete the installation by reversing the removal steps.

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