so theres this blue canister(more like a small tub with a top) and it has a hose going from the top of it, to the side of my air cleaner, what does it do(hinder or help performance...or nothing at all) also, theres another hose hooked up to the back of the air cleaner(and in turn goes to the valve cover) what is this for?
The blue canister is an emission item to help somewhat protect the environment. It is also referred to as the carb-can. The hose from the v/c to the breather is there to direct the engines crankcase gases so they can be re-burnt to make for a cleaner burning machine.
Pressure control valve, gas vapor The hose to the crank usually goes to a pcv valve that controls crancase ventelation fumes.It reburns oil fumes but (don't quote me on this) i was told the pcv works best on vacuum. I have used straight breather caps but it made for a messy engine.The carb can that looks like a blue coffee can I believe recycles evaporated gasoline vapor.
Well, I ripped out the blue vapor canister 33,000 miles ago and haven't regreted it yet. But, ripping out the PCV system would not be a good idea. The PCV system removes corrosive, sludge forming moisture and combustion gasses from your engine and cycles fresh air in. Without the PCV valve, sludge will build up in your engine as the combustion gasses and moisture will be trapped. I have seen the inside of engines in the junkyard that have had the PCV systems removed or poorly maintained, and it is not a pretty sight. I replace my PCV valve every three oil changes (change my oil every 3,000 - 4,000 miles).
I would want the gasses sucked out into a carb spacer(under the carb) or into the vacuum fitting with the pcv (the thing with the heavy ball int it ...$2) in the valve cover. Just make sure for now that the valve covers are not capped off...they at least need to breath out pressure. Only one side (valve cover)needs re brethed into the intake.... the other can just have a breather cap.
Ah! Cool, well I put in a PCV valve on the left valve cover and ran a tube from it to the little vaccum fitting tower on top of the back of the intake manifold! Thanks guys! I had no idea about that sludge issue! And I had a breather cap on the right side. woohoo!
carb can A buddie of mine told me the carb canister is the only vent tube for your gas tank in and out as it drains so it may collapse in or starve the engine as the gas is used, it how the tank equalizes its pressure.Im not sure if you were having any fueling issues.
My car seems to be running fine without the canister... I've gotten on it a few times since I've changed everything out and it seems to be fine... The small pipe is still open so wouldn't that still allow whatever is in there to still escape?
