I lost the air pump right after I bought it.

What's the typical tank vent routine? I figure I can cap two of these and run one back up to the evap system or something.If this is a vented cap though, perhaps I can just cap all of them?

 

If using a vented cap, you can block off the other fittings. Unless the gasket leaks, the vented cap only vents in, not out.

 

Good to know.

The bad news is that my sending unit seems to be bad, so I may have to go ahead and get another one. I get a reading when it's at the empty level, but as soon as I move it it goes to an open on the meter.

 

i had to make a vent tube for our tank. i found one of the vent fittings and connected a long 5/16 fuel hose to it. i ran it up over the axle to the highest point under the body that i could find and attached it there. it doesn't look pretty but it works.

 

I think I have a problem that will only be solved by fabrication. My car originally had A/C. I am thinking about putting just heat in it now, but from what I can tell, the cowl is different from A/C and no A/C cars, so in order to have an air box for the blower to work, I may have to make one to work for my cowl in order for everything to work.

Course, I could always just go with my original plan to not have heat at all....

 

Pop the cover off the sending unit and bend the wiper on the potentiometer underneath the cover. Clean the windings also with a little steel wool. Then check it with a meter to see how it reads throughout the travel. I've fixed several Chevy sending units this way.

 

Easy enough to try. Thanks.

Would you happen to know if this sending unit/fuel pick up diameter flows enough to feel 500hp?

 

I took the sending unit cover off and cleaned everything and am now reading 35ohms at the lowers to 145ohms. Nice!

 

Gotta do one thing at a time, right? I started cleaning up the gas tank today to get ready to paint. I had to pull the fuel level sensor apart to get it to work correctly as well and managed to clean up the tank hanger straps and got those painted. I think that was the first part I have actually felt like I completed something!

 

Can't say for sure, but it fed my 427 with no trouble, and it was probably around 450 hp. I ran a mechanical fuel pump to a 750 Holley.