The Ford Barn

markdtn · 08-25-2017, 10:33 AM

On my 8BA in a tractor, I bought a new '52-53 Airtex fuel pump. It put more fuel in the crankcase than it did the carb. So I gravity fed it from a lawn mower tank during the construction phase. I am finally ready to put the sheet metal on so I bought a permanent tank. Only problem is that the tank is top draw as I bought a stock tank. A custom tank with bottom draw was over twice the price. (and I would have to pull the intake and add a plug to really get rid of the fuel pump pushrod. And I like the look of a pump). So I bought another new pump. This time a '49-51 style pump. Also an Airtex. So my questions: Why would a new pump leak internally? From all I read either early or late pump is OK for an 8BA? Is there something I should check as far as pushrod height or anything? I don't need much flow, motor is bone stock with a single 94 carb. Shouldn't brand new pump diaphragms handle ethanol fuels? Any other thoughts or suggestions? I do not want to fill the crankcase with fuel again.

08-25-2017, 10:33 AM	#1
markdtn Senior Member Join Date: Jun 2016 Location: Chattanooga, TN Posts: 164	8BA Fuel pump quandry On my 8BA in a tractor, I bought a new '52-53 Airtex fuel pump. It put more fuel in the crankcase than it did the carb. So I gravity fed it from a lawn mower tank during the construction phase. I am finally ready to put the sheet metal on so I bought a permanent tank. Only problem is that the tank is top draw as I bought a stock tank. A custom tank with bottom draw was over twice the price. (and I would have to pull the intake and add a plug to really get rid of the fuel pump pushrod. And I like the look of a pump). So I bought another new pump. This time a '49-51 style pump. Also an Airtex. So my questions: Why would a new pump leak internally? From all I read either early or late pump is OK for an 8BA? Is there something I should check as far as pushrod height or anything? I don't need much flow, motor is bone stock with a single 94 carb. Shouldn't brand new pump diaphragms handle ethanol fuels? Any other thoughts or suggestions? I do not want to fill the crankcase with fuel again.