The following should also be done, the drivebelts should be detached from the machine and the crankshaft pulley should also be detached. Locate how far the seal is marin in the bore and with extra careful, use screw driver or seal removal tool to take the seal out of the timing chain cover with out scratching the crank shaft or the cover bore since the new seal when fitted may lead to leaks. The removal of the seal may be eased if first, the old seal lip is cut with a sharp utility knife particularly at the corners. Scrub the bore in the cover and use engine oil or multipurpose grease on the outer circumference of the new seal, dipping the seal lip in moly base grease. Grinding a socket slightly smaller diameter than the seal onto the shaft and gently installing a new seal with a seal driver or a large socket, or piece of large diameter pipe of a similar thickness, applied straight onto the shaft end, making sure that the seal is straight and of equal depth as the old worn seal. After operating it, inspect the seal to make sure that the spring did not come off. Replace the crankshaft pulley and all the drivebelts, and then start the engine and inspect such oil leaks as that from the front seal.