Originally Posted by VEEDUBBED

Right peeps,
Has anyone come across this wierd problem
concerning the original Weber FPR fitted to
cosworths,i've always found that they loose fuel pressure
within a a short time.i've changed three on my car and when
i connect my mech. fuel press. gauge the initial fuel pump prime pressure
shoots to 3Bar but 2 minits later,zero pressure!.
The only way i've cured this is by squashing the return line briefly
and sending the fuel pressure into orbit,off the gauge's scale so that when i release the pipe,hey presto the fuel pressure stays for hours on end.
Anyone had similuer problems???.