I have just removed the fuel rail and injectors and one of the caps has come off. I have removed this rail 3 times now with no problems before. I can see the cap but I am not confident of pulling it back through the hole. Can I undo the inlet manifold top bolts without undoing anything else to get enough play to reach in and get it or do I have to take it all apart? If so what is the procedure as mines a daily !!!