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Author Topic: Replacing fuel pump  (Read 7874 times)

Offline Irish_Alley

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Re: Replacing fuel pump
« Reply #15 on: January 09, 2010, 01:57:16 am »
from what i understand the nut goes in the fuel pump so cutting i don't think would help nor would heating up the nut lol  ::). like vile said put a little behind it and it should bear free just watch those knuckles
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Offline jaredts

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Re: Replacing fuel pump
« Reply #16 on: January 10, 2010, 02:29:33 pm »
Quote from: Irish_Alley on January 09, 2010, 01:57:16 am
from what i understand the nut goes in the fuel pump so cutting i don't think would help

He's replacing his fuel pump.  Throw the pump away with the nut still in it.  Repair the line with a flare tool and a new nut.  Of course this is last resort, but if the hex is already getting rounded it may still be a good idea to replace the nut.
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Offline Irish_Alley

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Re: Replacing fuel pump
« Reply #17 on: January 10, 2010, 08:17:21 pm »
Didn't see that lol
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Offline Cubman

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Re: Replacing fuel pump
« Reply #18 on: January 16, 2010, 03:24:03 pm »
I am replacing my mechanical fuel pump as well. I couldn't get this nut to break loose either, so I undid the alternator and took it out still attached to the fuel pump.  Someone cut thr to put an inline fuel filter on and put a kink in one of the bends, so I would like to replace it.  Can I use brake line to make my own or did Chevrolet use copper for a certain reason?
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Offline Donut

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Re: Replacing fuel pump
« Reply #19 on: January 16, 2010, 03:56:34 pm »
Mine are steel lines.  IIRC, I did use steel brake line from the pump to the carb.  (I put an inline filter there too, so my bends didn't have to be perfect)
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Offline MarkS

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Re: Replacing fuel pump
« Reply #20 on: February 23, 2010, 06:23:12 pm »
It's been a while since I've been on the site. I just wanted to let everone know how things came out.

Vile was right... tighten a bit then loosen. I was just worried about ruining the brass nut. And yes I was using a flare nut wrench. Even so, I've found from experience never hit with a hammer or use a cheater bar. This almost always kills the nut. I was very close to cutting the line off the pump and just replacing with a new one but since it was custom it wasn't going to be as simple as buying one off the shelf. I found that the probable reason for the over tight nut was the flare on the custom line wasn't as well fit as you would expect on a factory line. It wasn't easy to center up and once I did get it started I had to tighten to the extreme to get it to stop leaking (started by hand... not cross threaded). Hopefully this is the last pump as next time the brass nut will be toast.

Thanks to everyone for the advice!
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