Fuel system problem aside - if I conveyed your comment above to the Bing development team at Microsoft, they would probably fall into despair ..... !

 

How about a pressure regulator set at say 75psi plumbed between the fuel rail and some point before the check valve. It would act as a "return" line. That way, your fuel rail is never over 75psi.

On your point about the hamster bottle. What is happening is the liquid is vaporising when hot, pushing fuel back, then cooling and shrinking.

 

I've thought of that, but even then, the fuel would still be at the rail when I turned the key. Let's say it vaporizes and pushes the fuel back. As soon as it cooled and contracted it would suck the fuel right back up to the rail, unless air was getting into the line somewhere.

 

Hey Sam,

I'm a little late to this party, but here are a few things that will help you get a handle on your fuel system. I'd run across this thread a few times since last year and meant to chime in, just lost track of it. My bad!

Hope it helps a little.

Damn, I can never get a .pdf bigger than 1MB to upload here. Here is a link to download one of the documents.
2003 MY XK Technical Guide.pdf

Cheers,