fuel pump valve?

[driftjunkie27]

i always wonder what this lil valve right on top of fuel pump does? any ideas ,

http://www.koalamotorsport.com/proddetail.asp?prod=16141181075&cat=11

ive search many forums/ installation guides and no one explains what it does.


EDIT: the link was the wrong one hopefully this one helps, its the small valve between the line and the pump.

[jlevie]

I can't see what you are talking about, but I suspect you mean part 17 on http://www.realoem.com/bmw/showparts...81&hg=16&fg=15

Which is a pulsation damper.

[driftjunkie27]

I can't see what you are talking about, but I suspect you mean part 17 on http://www.realoem.com/bmw/showparts...81&hg=16&fg=15

Which is a pulsation damper.

will it be the same as the new link i posted? can i get a more in-dept description of what it does?

[jlevie]

As far as I know, yes. It's purpose is to damp out the pressure variations in the fuel line that the pump causes.