Fuel pump 8ba

I am having trouble with the mech. fuel pump on my 8ba flathead. I rebuilt it and it is still not working. I have two glass bowl gaskets, a rubber one and a cork one.Which one is correct? Has any one had this problem before? Please help.

Thanks

 

hi i alway use the cork one , but if you are have problems with it sealing the mounting surface could be distored or bent and not making a air tight seal between the pump ,gasket and glass bowl, i had one like that and would run but would stall going up hill

later kb

 

A problem that I had was that the pushrod wasn't moving up enough to get a full stroke on the pump. The cam lobe was worn down. I got it to work by making a pushrod that was a little longer. DON'T TRY THIS ARBITRARILY, TOO MUCH TRAVEL OF THE PUMP WOULD DAMAGE IT. With the pump off, turn the motor until the pushrod is fully extended/up. Then figure out a way, with a depth micrometer or some way of measureing, figure out if the pump is moving full travel. At the same time, you can tell if the pump is working when you move it manually.

 

Another time, another place, I saw a guy leave the pushrod out.

 

That hose that Ford used from the pump to the line going to the tank often have holes in them. The pump won't work if it is sucking air.

 

an old timer once told me they would stick a penny between where the push rod and the the pump lever met....

 

is your fuel tank clean ? or a stated before you might have a fuel line air leak. i was having a problem with mine and i replaced the fuel rod and pump and no probs since.

 

Have to agree with Skid on this one .... the pennies are used for blocking the heat risers to make it talk, 1/4" flat washers for increasing pump stroke. Most cars have a combination of problems after sitting dead for years. Some of the most common are vacuum leaks, fuel tank pickup partially rotted away inside the tank, obstructions or kinks in the line, and cap vent plugged. It's usually a good idea to run an electric pump at the rear of the car, with a switch so you can use it full time or as backup. Lots of old timers hid the switch as an anti-theft device. Hearing the old days Dupree or S-W pumps come to life used to mean the person you just asked "wanna go 5 bucks a gear ?" was going to give you a run for your money. Nowdays, a pressure regulator is a good idea.
302

 

Low pressure electric pumps do not like to push fuel so mounting it by the tank is a bad idea.
Instead mount it along the frame by the cowl.