Re: Fuel pump priming

Posted by HH56 on 2021/1/27 20:32:32
As a general rule the pumps do not need priming but if the fuel dried in the pump during the sit it is possible one or both of the valves might have stuck. If so and you can get some gas into the pump by removing the line and connecting a length of tubing to a can held above the pump, let gravity fill the filter bowl on the bottom with some fuel running into the pump and they might free on their own. Some increased air pressure in the tank while you crank might also force some fuel in and thru the pump to do the same thing.

If that doesn't work it is also possible you will need to remove the pump and verify the valves are OK and if it is an old pump with original materials that cannot stand additives in modern fuels, that it is not the diaphragm that is damaged.

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