Belt Driven fuel Pumps

Is it lower than the fuel cell? Belt driven pumps need to be gravity fed.

yes its actually below the front k-member

I have to squirt fuel in my hat and get the engine running and it usually dies a few times before I get all of the air out of the system. after its been running it will start on its own for the rest of the day.

take the belt loose and attach an electric drill and prime it
up. worked for me.

Where is the tank?
If the tank is in the back and the fuel line is coming up and over the axle it may take a little fuel in the line to prime or a little tank pressure to prime. The Electric drill and prime it !!!!

Stick an air line in the cell (pressurize it) and push the fuel to the pump. Thats what i did, no problems then!

Belt driven pumps are not real efficient at pulling fuel, say from the rear of the car.

You would be much better installing a surge tank in the front of the vehicle that feeds the belt driven pump. You can feed the surge tank with a rear mounted elec pump and a single float bowl off a carb. If you have return lines, just plumb them into the surge tank.

Although you didn't say, is your setup mechanical injection or carb?
Like fast46p/u - I race an injected s/b and installed a primer-check valve in the distribution block. Couple of hits on the momentary switch and it lights off. BUT my fuel cell is up front and there is a constant supply of fuel to the belt driven pump.

Hope this helps.

.alex. said:

How many tries does it first take you guys to prime the pump.... this one is new from aermotive and doesn't want to seem to want to prime at all.... 5th attempt and yes it clocked the right way. just no fuel pressure.

Click to expand...

For initial priming, remove the fuel inlet line to the pump, and blow compressed air into the fuel cell vent. When you have fuel, re-attach the fuel line.

From that point, you shouldn't have any more issues. A mechanical pump will not create enough air vacuum on the fuel line to pull the fuel forward.

I've always cracked the fitting at the fuel pump loose and let gravity do its magic for a couple minutes. Once the pump has fuel, I'll tighten the fittings. I loosen one at the regulator and crank the motor over for about 20 seconds and it should have pressure.

I've always just run the motor keeping it fed with gas from a hand held primer bottle till the fuel pressure builds up. This is on an Alky carb.

-Tanner

No real good on the pump to run it dry. I'd just crack the inlet side of the pump fitting loose until you get fuel. Retighten it and you should have no problems spinning the thing by hand to get fuel up to you carb or whatever you're running. You should have a truly gravity fed fuel line if possible. At least with a gallon in the cell it should have no problems coming out the front. I've only seen the surge tank setup on stuff in the 1.20's and quicker for 60'.

i got it all worked out, it was a badfuel pressure guage on reguator, the indash guage was reading 55psi....

did manage to hydrolock the motor with a cracked cylinder head and bent some stuff int he motor.

.alex. said:

i got it all worked out, it was a badfuel pressure guage on reguator, the indash guage was reading 55psi....

did manage to hydrolock the motor with a cracked cylinder head and bent some stuff int he motor.

Click to expand...

:smt021 Ouch.