Anybody know how the vacuum pump works from the camshaft as mine wont turn . I took it off and the coupling on the camshaft turns freely .shouldnt it be locked and turn with the engine ?? the pump works so it s got to be something between the cam and the pump any ideas ???

Tim, April 2012

why dont you take rocker cover off that will give you an idea to how it works good luck

raza, April 2012