blackbyrd
15+ Year Contributor
- 718
- 21
- Jul 9, 2006
-
Columbus,
Ohio
It's another late night working on the car, so indulge me.. I removed the charcoal canister and was going to vent the pressure relief hose from the fuel tank, to the ground behind my engine bay. I noticed there's a little plastic check valve in line with the hose. I assume to allow excess pressure to be relieved from the fuel tank gases, and not to allow air to travel back into that pipe to the fuel tank...
Does that sound right?
Because I took off the check valve and blew into it in the direction exhaust gases would be traveling out of the tank, and It shut. But I could blow into it the other way... So as it was it wouldn't allow fuel fumes to escape, but allow air and what not from the charcoal canister or whatever it went to, to travel through it and into the gas tank...
Make any sense?
I figured okay some idiot just had it turned around backwards, but I look at the arrows on it and the arrows are pointing the direction it was hooked up. IE, the arrow points ----> but you can't blow any air in that way..
?
Am I just lunching? Does it only open under a certain amount of pressure? Is this why everytime I would fill up my gas tank the nozzle would shut off 20 times?
Maybe someone could enlightened me.. I was just going to vent the tube, figured I'd keep the check valve if it serves a valuable purpose. Maybe put a filter on the end of the hose? Haven't decided.
Thanks!!
Does that sound right?
Because I took off the check valve and blew into it in the direction exhaust gases would be traveling out of the tank, and It shut. But I could blow into it the other way... So as it was it wouldn't allow fuel fumes to escape, but allow air and what not from the charcoal canister or whatever it went to, to travel through it and into the gas tank...
Make any sense?
I figured okay some idiot just had it turned around backwards, but I look at the arrows on it and the arrows are pointing the direction it was hooked up. IE, the arrow points ----> but you can't blow any air in that way..
?
Am I just lunching? Does it only open under a certain amount of pressure? Is this why everytime I would fill up my gas tank the nozzle would shut off 20 times?
Maybe someone could enlightened me.. I was just going to vent the tube, figured I'd keep the check valve if it serves a valuable purpose. Maybe put a filter on the end of the hose? Haven't decided.
Thanks!!