I went to fill up my S2000 today and I noticed that there is no metal flap inside the gas filler opening. After I removed the plastic screw-on cap, I can just poke my finger into the opening without pushing aside a metal flap. Every car I've owned, including several other Honda cars, have always had this metal flap beneath the cap. So can someone tell me if there is supposed to be a metal flap in the S2000 or is it supposed to be wide open? I've never noticed it before until today.

If there was supposed to be a metal flap there and it is now missing, what could have happened to it? And since my car is now more than 18 months from date of purchase, is there any hope of having it repaired under warrenty if there was supposed to be a flap. Any other comments welcome. Thanks in advance.

 

I don't believe they have a "metal flap" as you sugest... other cars do... mine doesn't. I'm assuming most (All) don't. I wouldn't worry too much about it..
-- Aaron

 

No flap, no biggie. Runs great.

 

I questioned the same thing a few months ago. I know my filler neck has a metal flap. It just disappeared one day! My Honda dealer told me that none of te new Honda's have such a flap. Noone was able to explain its purpose. I've seen the flap in years past when I filled up a rental car. Maybe it was some sort of fuel expansion mechanism.

 

Mine has a metal flap! Maybe another difference between European and American specced cars? I'll post a picture tonight.

 

No flap on mine either. I guess they don't come in US S2K.

 

The reason I asked was because I always thought it was a safety thing -- the flap keeps things from falling into the gas tank by accident.

Just to fill in the gaps, my S2K is a MY2000, bought in the USA. It currently does not have a flag over the gas filler opening and I don't remember if it ever did.

 

The most likely reason for having a metal flap on Euro models is to meet Euro safety regulations. They're probably more concerned with the possibility that gas fumes escaping from an open tank can be ignited, or that the fumes pose an environmental hazard. I guess Honda saved a few bucks on the U.S. models because the flap is not required.

 

no flap here, mine has been circumsized..

 

I would guess that the NA versions that have the evaporative control system does not have the flap, but in counties that do not require that gear they still use the flap.