1971 402 fuel issue?

[cheyenne402]

I tried getting my 1971 Cheyenne 402 started today. Put on a new starter, put 5 gallons of fresh 93 octane in the tank, and put a good battery in it,

I can't get her running. She will run if I put some gas in the carb (over a dozens times I did this, thinking I could get her going), but than stalls. I changed the filter, she isn't getting gas.

Think the fuel pump needs to be replaced? I haven't started her in quite awhile.

Suggestions?

[into69z]

I would check the fuel pump to make sure it's pumping-you can isolate the fuel pump by disconnecting the fuel line from the pump that comes from the tank and connect a rubber hose into a can of gas and see if the pump flows fuel to the carb-if no flow then the pump is probably bad. If this set up works, the tank or fuel line needs cleaning-hope this helps.

[sean1969c10]

I helped a start a Ford 292 I built in a 56 F100. We had the same problem, turned out mud dobbers plugged up the fuel line on the truck. Also want to make sure you are venting the vank. Hope this helps.

[cdowns]

i'd disconnect the fuel line from carb , put fuel line into container and turn over engine to see if the pump is pumping fuel
if you have a 4barrel quadrajet carb there is a fuel filter inside the carb body that should b checked

if the truck sat outside there maybe water in the gas

if tank was completely empty 5gallons might not b enough gas for the fuel pickup to get gas to the pump

[dos0711]

Disconnect the line from the tank at the fuel pump. Then run a length of fuel hose from the pump to a gas can. If it picks it up, you know the problem is between the fuel tank and the pump. If it doesn't, then it's most likely the pump.

[cheyenne402]

Originally Posted by dos0711

Disconnect the line from the tank at the fuel pump. Then run a length of fuel hose from the pump to a gas can. If it picks it up, you know the problem is between the fuel tank and the pump. If it doesn't, then it's most likely the pump.

I will try this either Wednesday or Thursday (my next days off). I put 5 gallons into tank, so it should've picked it up. Thanks.

I almost hope it is the pump. Probably easier to deal with than lines and tank.

[cpisani70@aol.com]

If it is the pump it's not a bad job and the pump was 27 dollars I just did my pump tonight on the exact truck well 71 402 , I didn't have to trouble shoot mine was pumping gas but was weeping gas out of the weep hole.
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[cheyenne10]

what is 3rd fuel line hooked to my stock 402 fuel pump? (large canister looking pump). I am not getting fuel through it with fresh gas line hooked to larger fuel inlet line. Do I need to do something with the smaller line?

[Zoomin]

It's a return line.

[cheyenne10]

Do I need to put it in the loop to get pump working or can I leave it hocked to tank ( bypassing tank with gas can and cleared fuel line)
Posted via Mobile Device

[Zoomin]

Originally Posted by cheyenne10

Do I need to put it in the loop to get pump working or can I leave it hocked to tank ( bypassing tank with gas can and cleared fuel line)
Posted via Mobile Device

You can leave it unhooked, but be aware gas is going to come out of it if your pump is working.