Silly little question - fuel cap

Started by RedRummy, May 25, 2007, 03:12:29 PM

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RedRummy

May 25, 2007, 03:12:29 PM
When I fill up, there is a pretty loud rush of air when I open the fuel cap...

I take it this is air rushing in, caused by the fuel leaving the tank, but should this be happening?

I thought you could get fuel caps which had some kind fo valve in them to let air in and keep fumes (and fuel) from getting out..?

stupid blummin question, i know, but its been annoying me.
"Life moves pretty fast....
If you don\'t stop and look around once in a while, you could miss it..."
Ferris Beuller, 1986.

DC-TYPER

#1
May 25, 2007, 03:22:33 PM
the cars gulping mate   lol
 
 
yeh its fine

Jono FD3

#2
May 25, 2007, 08:22:54 PM
Mine only does this when I let the fuel drop below 1/8 of a tank...... fill ups at 1/4 or 1/2 tank it doesn\'t happen!!

Jono

Joeh

#3
May 27, 2007, 12:51:08 AM
Don\'t worry, its nothing :)

RedRummy

#4
May 27, 2007, 08:15:59 PM
ok cool, just wondered if the back pressure would suck the fuel back into the tank  :D
"Life moves pretty fast....
If you don\'t stop and look around once in a while, you could miss it..."
Ferris Beuller, 1986.

edgasket

#5
May 27, 2007, 11:10:44 PM
the breather might be blocked? no big deal, the pressure the fuel pump\'s pushing the fuel through, it\'s not going to make much difference...
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