Fuel filter problems

[Pintogogo]

I have a 2.0L pinto fitted with a new OE mechanical fuel pump but I cannot get the plastic in line fuel filter fitted between the pump and the carb to retain any petrol. If car stands for more than a week the petrol evaporates and it takes an eternity of pouring fuel down carb chokes to fire engine up several times to pull fuel through, even then only spurts of fuel from fuel pump can be seen entering filter, is there any way to bleed fuel system

[blue]

This is a common issue you could fit a one way valve near the tank to stop the fuel returning to the tank but this is why most builders fit an electric fuel pump. 

[theduck]

one way valve doesnt stop the evaporation.  Best fix is an electric fuel pump.

[Peter Bell]

I think you will find that there is always air showing in those filters, don't worry about it, and yes the mechanical pumps will take a while to pump fuel through after the car has been left for a while. As a plus it does mean that while you are cranking oil is starting to be pumped into the bearings before much load is applied.

[Pintogogo]

thanks guys, electric pump on order now