Vapor Canister Question

[stump_puller]

I am currently putting my truck back together and I need to know if I can elimnate the vapor canister. The only hose currently goin to it is the one that seems to go back to the gas tank. Can I just plug it off or what? /forums/images/graemlins/1zhelp.gif

Thanks in advance,
Don
/forums/images/graemlins/truck.gif

P.S. By the way it is a '85 with a 350, performer rpm intake and an edlebrock 600cfm carb

 

[Shaggy]

<font color="green"> The other hose goes to vaccuum on the carb. If you don't have emissions tests then you can just leave everything how it is. </font>

 

[sled_dog]

I removed mine, I'm gonna put a breather on the end of the gas tank line and it should be fine. My buddy kept going on about how I should remove it, that thing weighs like 5 pounds! I was like alright, pulled it out, it weighs like 1.

 

[Can Can]

Whatever you do, make sure you don't plug off the line that goes to the tank.

The vapor cannister is there for a reason. It allows your gas tank to "breathe" when the gas warms up throughout the day and starts to produce fumes. Fumes = pressure and when that pressure starts to build it needs somewhere to go. That's why most people run a vented gas cap, too.

If you eliminate the vapor cannister, just make sure that the pressure is still able to get out of your gas tank.

 

[stump_puller]

Thanks, so I'll just extended the line up higher next to my axle breather hoses and put a small breather on it. Thanks everyone /forums/images/graemlins/thumb.gif.

Don
/forums/images/graemlins/truck.gif

 

[dyeager535]

Only problem I have with the breather is condensation in the tank.

I can't remember, do the gas caps allow air in, but not out, until internal tank pressure reaches the caps pressure rating?

Was thinking of using an axle breather myself, but since I don't plan on taking this tank back down for 100,000 miles, I don't want water building up in there.