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Carburettor and fuel pump issues

Posted: Mon Jul 16, 2012 3:15 pm
by Hpi_matrix
Can anyone tell me how the vacuum below is meant to work, it looks like the vaccum is meant to keep it shut at idle and then open it at full throttle? Its a solex 4A1 carb as fitted to a 320/6

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Also the car has an electric fuel pump fitted, even with my finger holding the float shut the pump continues and floods the carb (presumably why the car sometimes randomly stops?). Is there a way to regulate electric pumps some how? Is the original pump likely to still work after a few years of dry pumping?