Solving the dreaded fuel line leaks

Diamond_Don · #1 01-27-2017, 05:35 PM

I saw this information on some old fuel pump installation instructions. It talks about a "teflon tape" treatment from the manufacturer. Does anyone know more about this treatment? Is there modern day process that accomplishes the same thing, and no, I'm not talking about plumber's tape here.

Right now, after re-seating many times, I have resorted to tightening my fittings way too hard. I feel something is going to give...

Thanks

HawkX66 · #2 01-27-2017, 05:45 PM

You can buy liquid Teflon tape at all the usual places. I'm surprised you need it.

Diamond_Don · #3 01-27-2017, 05:53 PM

Thanks. Does this product have a name, is this what people safely use? I might have embellished the problem a bit, but the fuel definitely wells up and eventually drips at the fitting (vintage fuel pump with a new fuel line).

**YENKO DEUCE REGISTRY** · #4 01-27-2017, 06:15 PM

Are you using stainless lines?

Diamond_Don · #5 01-27-2017, 06:39 PM

I purchased from Inline Tube. Advertised as "70 Chevelle Pump to Carb - OE Steel". Thanks

jasonL78 · #6 01-27-2017, 07:08 PM

Try this you should be able to buy it at any automotive store.

Google Loctite 567

The flare should seal it?

HawkX66 · #7 01-27-2017, 07:32 PM

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: jasonL78</div><div class="ubbcode-body">Try this you should be able to buy it at any automotive store.

Google Loctite 567

The flare should seal it?

</div></div>
That's the stuff. I agree, OE steel shouldn't be causing those problems and the flare should seal it. OP, you might want to talk to Right Stuff/Inline before you do anything. They might have you exchange the line that's causing the issue.
Have you looked at the flare? Any grit? Misshapen? You might be able to get away with just putting a flaring tool on it and giving it a twist or two. Look at where the flare seats too. It should be clean.

**Donnie** · #8 01-27-2017, 07:50 PM

I had the same problem. <span style="font-weight: bold">a tip from Mr. Eric Jackson</span>
put a little grease on the back side of the flare where the threads turn against it and it sealed right up for me. I also put a little on the threads.

**YENKO DEUCE REGISTRY** · #9 01-27-2017, 08:36 PM

I asked about the SS because sometimes the SS lines can be hard to seal....

Diamond_Don · #10 01-27-2017, 08:56 PM

O.K. Great tips! I'll re-check the flare, dab the grease, and look for the Loctite product if still necessary.

*** Thanks ***