Sounds like bad check valves.
On Tuesday, June 18, 2013, David Porter wrote:
> BJ7 sat for 40 odd years. Fuel line from pump to carbs clear. Tried two new
> pumps. One SU square body (tried two different bodies) . Replaced
> steel/brass banjos to rubber hose with nipples and installed a facet LP
> pump. Replaced fuel tank believing the pick up tube was rusted through on
> old tank. Checked filler breather.
>
> Symptom: car runs for a couple miles and the pump stops pumping (looses
> suction) However will pump a steady/adequate quantity when disconnected
> from
> float bowls. Floats and level adjustment at spec. New needles and seat. Hot
> or cold.. tried every fix know to man. 3 times at least..still no joy
>
> What is going on?
>
> dave
>
>
>
> frogeye@porterscustom.com <javascript:;>
>
> Porter Customs 2909 Arno NE
> Albuquerque, NM USA 87107
> 505-352-1378
> 1954 BN2 1959 AN5
> Porter Custom Bicycles
>
> gallery:
> PorterCustomBicyclesStuff |
> porterscustombicycles<http://picasaweb.google.com/porterscustombicycles/PorterCustomBicyclesStuff>
>
> GO HERE: <http://porterbikes.com/> http://porterbikes.com/ nice
> pictures-fun facts-my world
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