I'm having a fuel flow problem on my 184 loboy which I narrowed down to the fuel cap. It was badly corroded so I replaced it a few days ago with a new cap from the Case/IH dealer. Still having same problem; it runs for a while then the tank pulls a vacuum & the fuel stops flowing.
Now the tank was cleaned & treated with "Northern Tank Liner" about a year ago & is still clean. It doesn't seem likely, since these fuel tanks have a flat top, but I'm wondering if these tanks had some type of pin hole vent much like the old Ford 9N's & 2N's had. If it did the tank liner would have covered it.
The other possibility is that the dealer doesn't carry a vented cap.
Any suggestions are appreciated. Thanks,