Dodge Posted June 15, 2023 Share Posted June 15, 2023 Lady's/gentleman I rebuild the fuel pump fuel prove for today's fuel Is it enough to start the engine and the fuel pump get the fuel out of the fuel tank by vacuum Or do I need to fill the fuel pump first with fuel by taking of a screw from above the fuel pump Thanks and enjoy Herman The Netherlands Link to comment Share on other sites More sharing options...
old car fan Posted June 15, 2023 Share Posted June 15, 2023 Prime your tank first. 1 Link to comment Share on other sites More sharing options...
Dodge Posted June 15, 2023 Author Share Posted June 15, 2023 1 hour ago, old car fan said: Prime your tank first. Yes I know There is fuel coming to the fuel pump when I disconnect the fuel line from the fuel pump and put my mouth on it There is fuel coming so that's no problem But when the fuel line is connected to the fuel pump And turn the engine There is no fuel coming out of the fuel pump It have to come automatic by vacuum Or do I have to put fuel first in the fuel pump for creating vacuum Thanks Herman Link to comment Share on other sites More sharing options...
old car fan Posted June 15, 2023 Share Posted June 15, 2023 If you have fuel at the tank,its gravity from there. It pulls fuel, doesn't pump. Link to comment Share on other sites More sharing options...
Oldtech Posted June 15, 2023 Share Posted June 15, 2023 As the tank works on engine vacuum you must put fuel in the tank and start the engine before it will pump. Fuel flows from the tank to the carburetor by gravity. 1 Link to comment Share on other sites More sharing options...
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