Remove the crankshaft pulley and note how the seal is installed, ensuring the new one is positioned to the same depth and orientation. Carefully pry the oil seal out of the cover using a seal puller or a large screwdriver, taking care not to damage the crankshaft or distort the cover. To prevent damage, wrap electrician's tape around the screwdriver tip. Apply clean engine oil or multi-purpose grease to the outer edge of the new seal and install it in the cover with the lip facing inward. Drive the seal into place using a seal driver or a large socket and hammer, ensuring it enters the bore squarely and stops at the correct depth. Check the pulley hub surface for grooves caused by long-term contact with the seal; if damaged, replace the pulley. Lubricate the pulley hub with clean engine oil and reinstall the crankshaft pulley. Finally, install and tighten the crankshaft pulley retaining bolt, completing the installation in reverse order of removal.