When removing the filler cap I"m getting a rush of air into the tank.
Is this normal ?


Cooper sport 500.............

If it's a late twinpoint then the answer is yes. It should have a non
vented cap - OE caps have green plastic on the underside, vented have red
plastic. The fuel tank vents to air via a charcoal canister under the
passenger side wing. It's another euro thing to reduce hydro/carbon
emissions to the atmosphere. When the fuel cap on my wife's twinpoint got
screwdrivered in that fuel dispute I just refitted an OE vented cap.

Chris

"Michael" <michael.shepherd1 (AT) ntlworld (DOT) com> wrote

Thanks Chris

Yes it is a late twinpoint (2001),does that mean it should have the cap with
the
green plastic on the underside ?
The one on it at the moment is the red one.

Michael.


"Chris" <karen.christiaan (AT) NOSPAMbtinternet (DOT) com> wrote

Michael,

Regarding the colours - it's the other way round to what i said! Just dug a
new vented one out I have here. It has 'vented' written on the green part
in 3 languages, I assume the red part may have 'unvented' written on it
somewhere?!

green is vented
red is unvented

Your car should originally have a red one - like you say you have.

Fitting a green one will do it no harm and it wont fail mot if you do fit
one. I believe fuel caps must only be lockable.

Chris

"Michael" <michael.shepherd1 (AT) ntlworld (DOT) com> wrote

Thanks Chris.
My car runs fine,it just seems odd the amount of suction on my
filler cap when I remove it.

Michael


"Chris" <karen.christiaan (AT) NOSPAMbtinternet (DOT) com> wrote