Do not rotate the camshaft(s) or crankshaft when the timing belt is removed or damage to the engine may occur. Begin by removing the timing belt cover(s) and then the timing belt(s). Use a bolt-type gear puller to pull the crankshaft sprocket from the crankshaft, ensuring to remove the Woodruff key. Wrap the tip of a small screwdriver with tape and, working from below the right inner fender, pry the seal out of its bore, taking care to avoid damaging the oil pump assembly, crankshaft, and seal bore. Clean and inspect the seal bore and sealing surface on the crankshaft, removing minor imperfections with emery cloth; if a groove is worn in the sealing surface, a new seal may not stop the leak. Lubricate the new seal with engine oil and drive it into place using a hammer and an appropriately sized socket. The remaining steps involve reversing the removal process. The crankshaft sprocket depth is set to a factory specification to ensure correct timing belt alignment, so use a special tool with a built-in setting for installation. Position the crankshaft sprocket with the word FRONT facing out and install it onto the crankshaft. Finally, reinstall the timing belt(s) and timing covers, then run the engine and check for oil leaks.