problems with fuel pressure

[Wiesner Ralf <Ralf.Wiesner@at.siemens.de>]

Dear Audi fans,

I got my ´84 ur-Quattro since 2/99 for 4000$ (50000 miles) and i am very
pleased with it.
For i live only 30 miles away from the place where it was bulid (south
germany),
i even know the day when it was bulid :-)
But i got a problem:
When the car is standing for some hours,
i need to crank over the engine for more than 4 secs to run.
When i manipulate the fuel pump before cranking, it is starting at once.
Where is the pressure leak? I cannot see anything outside the car.
Thanx for your help

Best regards
Ralf Wiesner

Wiesner Ralf.vcf