HELLO. You have to disarm almost all that side, remove hydraulic pump support, Sigual pulley to be able to access the weather strap, \ "you have to remove it as well as the tensioner along with the base, the camshaft pulley immediately removes another back cover and you can unravel the pump \. This is because of the time band that is to know how to put on time otherwise valves can be counted and the soup would be more expensive than the albondigas. I hope to open you.