The one way valves in the fuel pump should normally stop the fuel 
draining back to the tank.
So some thoughts:

A duff new fuel pump.
Dirt/rust from the fuel tank getting under the valves in the fuel pump 
stopping it shutting fully, is there a inline fuel filter and is it 
before the pump.
A air leak in the fuel pipe before the fuel pump, this wouldn't leak 
much if any fuel as it's under suction.

Jim


geoff ward wrote:
> Hi All,
>  
> Any one got any answers for this one?
> Carole's 2+2 (1.6 CVH) is a good starter most of the time, but just 
> lately it has been giving us problems.
> If it's left for more than a week or so it wont start!
> The battery is good and the engine turns over well and there is a good 
> spark.
> I think the problem is that fuel is draining back towards the tank 
> because if I introduce fuel directly in to the carb I can get it 
> going, then after its been running a short while all is back to normal.
> The Time before last when we had this problem I fitted a new fuel pump 
> but this obviously has not made any difference.
> Any idea's any one?
>  
> Regards Geoff.
>
> >


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