Sbc 350 fuel problems

[Ryanbrown36]

That could make sense as it only runs for 5 mins or so, what’s my best way to check that?

 

[Edelbrock]

Wait....

This could be real simple. It happened to my dad once.

He lost the fuel cap, so he put plastic on the fill tube and rubber banded it in place. The tank created a vacuum and then the engine would starve for fuel. Let it sit for a bit and then it would run again for a few miles than stall out.

A bad cap or plugged vent can do the same thing.

So to test it, just remove the gas cap and try running it again.

 

[Ryanbrown36]

Wait....

This could be real simple. It happened to my dad once.

He lost the fuel cap, so he put plastic on the fill tube and rubber banded it in place. The tank created a vacuum and then the engine would starve for fuel. Let it sit for a bit and then it would run again for a few miles than stall out.

A bad cap or plugged vent can do the same thing.

So to test it, just remove the gas cap and try running it again.

That idea ran through my mind too, I tried blowing air through the lines and selector back to the tank and it’s running now, drove to work today and seems to be fine other than a stubble around 1000rpm but doesn’t die(could be accelerator pump adjustment though) might cut the selector right out of the system even to eliminate potential later problems, and might try to blow out that vent on the tank as well while I’m at it