Remove the timing bell and crankshaft timing belt sprocket. Note how far the seal is recessed in the bore, then cut away the seal lip with a razor knife. Cut away the crankshaft seal lip, then carefully pry the seal out of the engine with a screwdriver or seal removal tool, ensuring to wrap tape around the screwdriver tip to avoid scratching the housing bore or damaging the crankshaft, as damage can lead to leaks with the new seal. Clean the bore in the engine and coat the outer edge of the new seal with engine oil or multi-purpose grease, applying the same grease to the seal lip. Using a socket with an outside diameter slightly smaller than that of the seal, carefully drive the new seal into place with a hammer, ensuring it is installed squarely and to the same depth as the original; if a socket isn't available, a short section of large diameter pipe can be used. After installation, check the seal to ensure the spring didn't pop out of place. Reinstall the crankshaft timing sprocket and timing belt, then run the engine and check for oil leaks at the front seal.