Do I need a fuel pump?

jr_vw2 · Post by **jr_vw2** » Thu Nov 17, 2005 2:54 am

I am running a spun alu. tank in the back seat above the engine. I have just a single 34pict-3 carb. Do I really need a fuel pump. wouldn't it gravity feed just as well? If anyone has tried this let me know. Am I just asking for trouble? The only concern I have is would it filter through a fuel filter ok. thanks for the input. Jeremy Chattanooga, TN

Gene-C · Post by **Gene-C** » Thu Nov 17, 2005 3:03 am

Yes, you need about 3 psi of positive fuel pressure. MURZ

newmanx59 · Post by **newmanx59** » Thu Nov 17, 2005 1:57 pm

It should work fine as long as the needle valve in the carb doesn't leak and allow the fuel tank to empty into the crankcase overnight. I would suggest a fuel shut off valve that you use religiously.

5150bossman · Post by **5150bossman** » Thu Nov 17, 2005 5:38 pm

But what happens when you want to go up a hill?

Best to just put the fuel pump on. That way you are ready for any situation, not just flat level driving.

Gene-C · Post by **Gene-C** » Thu Nov 17, 2005 6:03 pm

i think the correct answer is no you don't NEED a fuel pump but it is a extremely good idea to run one. I would also personaly sugest an electric one. But one of the great things about a tank mounted in the back seat. If your pump goes out you just re-route the lines to gravity feed and gimp your way home.