Oldsmobile 12557586 Engine Crankshaft FLYWHEEL

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Take off the transmission. If yours is a manual vehicle, you will have to remove the clutch and pressure plates as well. Stick a large screwdriver into the starter ring gear or drive plate hole to stop the crankshaft from rotating, then unscrew the mounting bolts. As the mounting bolts are loosened or tightened, use a big screwdriver to keep the drive plate from moving. Support the flywheel while it's last bolt is removed since it's quite heavy. The flywheel/drive plate needs to be pulled straight back so as to disconnect it from the crankshaft. Some models may have a shim between the drive plate and crankshaft and while automatic transmission models are fitted with fasteners between bolts and drive plate. When your vehicles are built with manual transmission, examine your guiding bushing and replace if necessary . It should be performed in reverse order of removal. Remember that if used, align the hole in the flywheel/drive plate with dowel pin in crankshaft. Apply non-hardening thread-locking compound on bolt threads and tighten them.

Use thread locking compound on the bolt threads.

Remove the mounting bolts while holding the crankshaft to prevent it from turning.

By using a large screwdriver to hold the driveplate from turning while loosening or tightening the mounting bolts.

The transmission, pressure plate, and clutch.