GM 12577214 Engine Crankshaft FLYWHEEL

To have the transaxle replaced, the vehicle needs to be lifted to a certain height using the hydraulic jack and supported using the jackstands afterwards the transaxle has to be removed. In particular, if there is a leakage detected, one should replace the front pump seal/O-ring at the time. Subsequently, the bolts which fasten the driveplate to the crankshaft must be undone carefully because the heads of these bolts are thin; to ensure that they sit properly in the socket for optimum grip, the edge may need grinding. If the crankshaft turns, take a flat-head screwdriver, and by placing it between the teeth of the ring gear, turn it to jam the driveplate. After that, it is necessary to remove the driveplate from the crankshaft and to get the spacer out if it was used. For installation, remove all grease and oil from the driveplate and be sure to check for any cracks or other signs of damage, likewise, check the ring gear to be ensure that none of the teeth is cracked or broken. Place the driveplate horizontally and run a straight edge across it to be sure it has not developed a twist. Check/clean the mating surfaces of the driveplate and crankshaft, a leaking rear crankshaft seal , before reinstalling of the driveplate. Align the driveplate against the crankshaft and before tightening the bolt apply thread locking compound on the threads of the bolt. While tightening the bolts, use a screwdriver in the ring gear teeth so that the driveplate does not turn. Tighten to the recommended torque measurements. Last but not least, do the reversing of the removal operation to fully install the software.

If the crankshaft turns, use a screwdriver to jam the flywheel/driveplate.