GM 10127523 Pulley, Crankshaft

First briefly take the cable out of the negative terminal of the car battery allowing the Theftlock audio system to unlock if available. After that, one must remove the drivebelt. If you have an automatic put the parking brake on and shift into Park, or if you have a manual, shift into gear, then place the car on jack stands on the front end. Unbolt the bolt to the front of the crankshaft using a breaker bar due to the bolt being very tight; for counter languaging, use the GM special tool J-38122 or an equivalent to lock the crankshaft from rotating during this process, or insert a bar through the pulley hole. Remove the crankshaft pulley by using a puller for example tool J-24420-B or any other equivalent; make sure that you use a bolt type puller to avoid straining the pulley. Check the oil seal and in cases of wears replace it, then put a thin layer of clean multi-purpose grease on the seal contact area of the crankshaft pulley hub. Insert the pulley over the Crankshaft and slightly slide it over the Seal until it comes in contact with the crankshaft sprocket whereby the hub of the pulley should be keyed to the Woodruff crankshaft key. The crankshaft bolt is useful in pushing the pulley into the required position. Last is to torque crankshaft bolt to a specific torque and the angle of rotation, proceed with the reassembly going through the same sequence as the disassembly process.

Initial steps when trying to remove the part includes, disconnecting the battery cable starting with the negative terminal of the battery and turning off the Theftlock audio system's lock out for this part if installed. However, further, the torque strut bolt has to be extracted from the cylinder head bracket and finally extract the drivebelt. With the parking brake set in a prepared vehicle with an automatic transmission put the shifter in park, then follow the subsequent steps: raise the front part of the vehicle and support it on the stands, and then remove the right front wheel and fender inner splash shield. Loosen the right side control arm from the steering knuckle. If necessary, to prosecute the lifting of the engine in a proper and safe manner, place the floor jack with the assistance of a wood block to avoid scratching the oil pan of the car. If required, unbolt and take out the two right side frame attaching bolts, but if possible, merely loosen the bolts and nuts of the left side frame member. Reduce the engine slightly if necessary. The crankshaft hub bolt should be loosened by inserting a breaker bar and a socket into the crank, and in the case where the bolt is very tight, the bell housing cover should be removed and instead of a bar a large screw driver should be used to prevent the crankshaft from turning. Next, unscrew the pulley bolts you must then remove the crankshaft pulley from the crankshaft hub. By applying the use of a puller, the crankshaft hub can be easily withdrawn from the crankshaft. For assembling, put a coat of multi purpose grease on the seal contact surface of the hub, after that place the hub in position of the crankshaft and slid it up to the crankshaft till it fits against the crankshaft gear with the slot in the hub facing the Woodruff key in the crankshaft. Screw in and snug up to the recommended torque value the bolt provided to connect the pulley with the cranskhaft, thereafter follow the remaining steps in the reverse method of removal.