1978 280z:

My Z fuel pump was pumping air. It seems like the metal fuel line inside the tank is rusted maybe. I reversed the fuel line with the return line. The car starts and runs much better. Are they any negative effect to this? How could I repair the fuel line? Thanks

The only way I know is to have the tank split, repair the tube and Have it welded back up.

The only way I know is to have the tank split, repair the tube and Have it welded back up.

Could you estimate how much that would cost?

You might see if a radiator shop would repair it.

Could you estimate how much that would cost?

I was quoted $400 by a radiator shop to split the tank, clean it out, epoxy-coat the inside, and reassemble. That seemed pretty steep to me, so I didn't do it. Repairing/replacing/refabricating the pickup should be a relatively minor addition to that job.

I never had it done but $400 sounds high.

Ya think?! I don't go to that shop anymore.

FAIW, I had a rusted fuel intake repaired somehow long, long ago on the '75 I drove in graduate school. I don't know specifically how it was repaired and can't remember what it cost, but I do remember it wasn't particularly expensive.

Thanks for all the input. I done an temp fix, going to work on the rest of the car.