what are the two silver canisters on the top of the motor? (are they vacumn related?) I started tearing the truck apart tonight and it looks like i need to remove them, when I started to loosen the 15mm bolt on top it started to leak air that smelled kinda funny so i tightened it back down and decided i would ask you guys if that is how i should remove it.... other than that things are going pretty well, alot of the wiring is out of the way as is most of the piping (air and coolant) should be ready to pull it this weekend! -Jeff