Are you talking about the Gold Color cap just before the hose clamps?


>
> Look further back. It is a pulsation dempner.
> Buly
>
>
> On Dec 31, 2007, at 8:46 PM, Bob Perkinson wrote:
>
> > Looks like it might be the end of the dip stick bent over.
> >
> >
> > -------------- Original message ----------------------
> > From: hoursaway1@comcast.net
> >>
> >> If that is a factory Mazda fuel pulsation dampner (yellow plastic  
> >> end cover
> >> photo 2) should be removed, prone to leaks, even in the cars.    
> >> David.  RV-6A
> >> Rotary
> >
> > --
>