How a charcoal cannister works

[bill]

My only concern is having fuel vapors under the hood. I plan to clean or replace the tank anyway, so I guess I will just disconnect the other lines just for good measure. Thank fellas....

 

[moose]

Like Bonnewagon mentioned, there really is no need to remove the charcoal filter system.
However, certain applications won't require them, or even have the provisions to support it.

I removed the charcoal canister system on my 442 when I installed the 455... Here's what I did.

Naturally, I removed the canister, and then started following the line down the frame rail to about as far as the brake proportioning valve. I was able to remove as far as that, and then broke off the line. At this point, the line gets tucked into a cluster of other lines, and I didn't feel like opening up the clip holding them.
I followed the line all the way back to the junction with the tank, which is hidden with a small heat shield, and disconnected the rubber hose from the vent line.
Now I was holding in my hand a section of 3/8 rubber hose going to the vent on the sending unit.
Here is where I got creative, and used a small plastic vent that is typically found on rear axles. I don't have a picture handy, but it's just a little chunk of plastic. I popped that in the end of the line, put the heat shield back in place.

Never had any problems with vapors, leaking, or smell for that matter...

Blake, props for your ingenuity. I take it these are the vent valves your referring to...

Can vapors only escape out of the vent line with these valves, or are they freeflowing?

I'm addressing this issue myself and am concerned about safety, I do not want to take any chances of my car bursting into flames.

 

[boatshoes]

I just removed my gas tank and was wondering about the return line. I was considering mounting my charcoal canister underneath the car, purely for asthetics underhood. This vent valve seems pretty sweet though.