Chevrolet 91175484 Oil Seal

Take the timing belt off, along with the crankshaft sprocket and inner belt guide. Wrap a piece of tape around the tip of a small screwdriver. Then, from underneath, use this screwdriver to wedge out that seal. Use the tip of a small screwdriver to pry the seal out carefully-wrap the tip with tape to avoid destroying the seal bore and crankshaft sealing surface. Be keen enough not to wipe or scratch either the seal bore nor crankshaft's surface. Rinse thoroughly and check for any imperfections in the crankshaft's bearing surface or sealing face. Light scratches can be smoothed using emery cloth. Installing a new seal may not cure an oil leak if there is a groove worn into the crankshaft sealing face (from contact with the seal). Trial fit one of those repair sleeves which slide over the top of your engine's bottom end crankshaft finish or upper shaft section. These are usually available at larger automotive parts stores. Make sure you lubricate your new seal with engine oil before inserting it into place using a suitable socket and hammer for driving. Insert the new seal gently by tapping it into place with a socket and a small hammer. Finally, put back all components related to timing belt. Start it up and look for signs of oil leakage.