AW11 - vented fuel cap?
Forum rules
Many subjects will have been discussed before. Please try the search function before starting a new thread.
Check in the Know Your 2 as the information you need may already be there.
Many subjects will have been discussed before. Please try the search function before starting a new thread.
Check in the Know Your 2 as the information you need may already be there.
-
Topic author - Posts: 11
- Joined: 11/08/13 18:02
AW11 - vented fuel cap?
Does anyone know whether the AW11 is supposed to have a vented fuel cap? My Mk1b is creating an awful lot of positive pressure (not a vaccum) in the fuel tamk after only a 12-15 mile run. The owners handbook says a small amount of pressure should be expected but this seems excessive to me.
The downloadable technical manual suggests fuel tank venting through a carbon filter, but I have had a good investoigation and cannot see evidence of this on my vehicle. Maybe this only applies to US market spec cars?
Any thoughs much appreciated.
The downloadable technical manual suggests fuel tank venting through a carbon filter, but I have had a good investoigation and cannot see evidence of this on my vehicle. Maybe this only applies to US market spec cars?
Any thoughs much appreciated.
-
- Administrator
- Posts: 5197
- Joined: 17/05/04 1:00
- Years of MR2 Ownership: 18
- MR2's Owned: 1
- Gender: Male
- Location: Glenrothes: The Kingdom of Fife
- Has thanked: 45 times
- Been thanked: 118 times
- Contact:
Re: AW11 - vented fuel cap?
Perfectly normal to get a release of pressure when you take the filler cap off a MK1 and no it's not supposed to have a vented cap.
Based on ??Guyc wrote:but this seems excessive to me.
-
- Posts: 125
- Joined: 12/04/15 21:24
Re: AW11 - vented fuel cap?
I get a hiss if I've driven the car far and it has less than 1/2 a tank. But I don't usually get anything crazy
-
Topic author - Posts: 11
- Joined: 11/08/13 18:02
Re: AW11 - vented fuel cap?
Thank you for your quick replies.
Jimi - my "This seems excessive to me" comment is purely based on the force at which the pressure is expelled from the tank when the cap is removed. It's not a simple "whoosh" that you'd get as if you opened a bottle of lemonade, for example; it is significantly louder and with a kot of air flow coming out of the tank. Difficult to describe / explain or find a better analogy other than that ...
Jimi - my "This seems excessive to me" comment is purely based on the force at which the pressure is expelled from the tank when the cap is removed. It's not a simple "whoosh" that you'd get as if you opened a bottle of lemonade, for example; it is significantly louder and with a kot of air flow coming out of the tank. Difficult to describe / explain or find a better analogy other than that ...