Chevrolet 24245480 Flywheel

To remove the transmission, check components such as oil seals and replace them if necessary. For manual transmission models, remove the clutch and check or replace the clutch components and release bearing. Make alignment marks on the flywheel and crankshaft to simplify replacement, as the bolt holes are slightly offset. Hold the flywheel/driveplate stationary while unscrewing the bolts; use a transmission mounting bolt and a wide-bladed screwdriver to prevent turning. Remove each bolt in an alternating pattern, ensuring new replacements are obtained for reassembly, as these bolts must be replaced whenever removed due to severe stresses. Carefully remove the retainer and flywheel, noting its weight. Clean the flywheel to remove grease and oil, inspecting for cracks, grooves, burned areas, and score marks, with light scoring removable using emery cloth. Check for cracked ring gear teeth and warpage using a straight-edge. Clean the mating surfaces of the flywheel and crankshaft, replacing the oil seal if leaking, especially in high-mileage engines. While the flywheel is off, clean its inboard face and the crankshaft speed/position sensor. When installing, align the flywheel/driveplate on the crankshaft using the marks made during removal, then install the retainer and new bolts, tightening them by hand. Lock the flywheel as done during disassembly, tightening the new bolts in a diagonal sequence to the specified torque in two or three stages. The remainder of the installation follows the reverse of the removal process.