Yes you can pull it as a complete unit, gov.and inj. housing and then you can change it.The camshaft has an off set tang (drive) so it can,t go on wrong.It,s not that heavy that you can,t handle it as I,ve removed lots of them on all the tractors with no problem lifting them and I,m not that big. while it,s off I,d change the lip oil seal that is at the camshaft drive in the front along with the fuel oil seals.