Fuel Filter

Discussion in 'Wrenchin' Secrets' started by Doug Christense, Sep 22, 2003.

  1. This weekend I tried to replace the fuel filter to my 71 Centurion but the nut (the smaller of the two) was totally seized up and I could not turn it. Tried WD-40 etc. no help. Now the nut is pretty well toast and it must be replaced (once I remove it).

    Is it possible to slide on a new nut onto the fuel line or do I need to replace the entire metal fuel line just to replace the nut? If the entire hose must be replaced, can it be rubber or does it have to be a metal hose? Thanks.
     
  2. 68 LeSabre 4dr

    68 LeSabre 4dr Well-Known Member

    You will have to replace the fuel line to get the nut replaced . Do not use Rubber fuel line . Fire hazzard .:gt: :TU:
     
  3. OK. Thanks for the direction.
     
  4. grant455gs

    grant455gs Well-Known Member

    Hey Doug,

    There are a couple of ways that you can go. You could replace the line, which would be best of course. You could cut off the factory double flare and put a new nut on, then re-flare. But it has to be double flared. Those are difficult at best. Or you could cut a section of line out say 12" before the carb and use a rubber fuel line to a new barb fitting that you can get from the parts store to co into the carb. This way is probably the easiest, but not the best (or the prettiest). If you don't double-clamp the rubber hose onto the old fuel line you could have a leak.

    If you go with the rubber fuel line way, can I suggest removing the stock fuel filter inside the carb and going inline. With the fuel filter missing, it adds volume to the extremely small resevoir in a QJ.

    Hope this helps,
     
  5. I'll check on the price and/or availability of a new fuel line first. If I can't find one (or they are too pricey), I might try the rubber hose section as a backup. If two clamps are good, maybe three would be even better.
     
  6. grant455gs

    grant455gs Well-Known Member

    Two is enough if properly installed. Use clamps 180* from each other. Been this way in my 69 GMC for over a decade..

    It is kind of a hokey backyard fix though. If you can afford the new line, do this for now if you need the car, and purchase the line at your convenience.:Do No:

    :beer
     
  7. 73Electra 225

    73Electra 225 Well-Known Member

    And if you didn't before, make sure you use a flare wrench on the fuel line nut.
     
  8. Yes. My repair manual recommended iI use the flair wrench but I didn't have one handy. Live and learn.
     
  9. Xarva

    Xarva Well-Known Member

    OR YOU COULD go pay 4$ for a can of PB Blaster it's way better than WD-40 just let it soak in a few hours tap the bolt with a hammer and go at it with vise grips.
     
  10. Gumby

    Gumby Guest

    Rubber hose is fine if you go wit hthe stainless steel brained covered hose.
     

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