how to removed crankshaft pulley

it just unbolts and will come off. do not attempt to adjust the belt. look somewhere else for your problem. get all the basics first before you attempt this. Roy

It doesnt just unbolt and come off, there is a large bolt holding it on that requires an impact driver to dislodge and you need to pull the radiator to get at it. (Some have reported success using a breaker bar and cranking the starter, I wouldnt go that route tho) Once the bolt is off you need a bolt puller to get the balancer off. However he is right dont just go replacing a timing belt, diagnose the issue correctly first.