Fuel Line, Carb to Fuel Pump

Discussion in 'Street/strip 400/430/455' started by hgiljr, Jun 17, 2020.

  1. hgiljr

    hgiljr Well-Known Member

    Well... Hello everyone. I must say, although everything seems to be a struggle with the car, I am loving the learning process thanks to everyone on this forum. So I went ahead and purchased the fuel line for my car (67 GS) between the carb and fuel pump. I must say, the current one on the car has pretty bad kinks at the final tubing curve before carb as well as final 90degree curve before pump. Either way, I removed this one and attempted to install the new one. Well the new one does not line up. In comparison from old to new, you can see that the new one has a much longer connection section to the pump causing the bends not to match the original one. I attempted to route the line just as the original one was routed on the outside of the distributor and also attempted to route it between distributor and water line engine inlet. Neither worked as it would not line up with the fuel pump. I can try to bend it a bit, but unsure if that will even help. Any suggestions? Picture attached, left side is original, right side line is new.

    thanks

    Hector
     

    Attached Files:

  2. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    Have you any experience making braided lines? You can convert to AN fittings at both ends pretty easily with conversion fittings at the fuel pump and carburetor. The new PTFE (teflon) lines look pretty easy to work with. Might be a little more expensive, but you can route it any way you want, and even use a billet filter inline. All you need is 2 of these adapter fittings, one screws into the pump, the other goes into the front of the Q-jet.

    https://www.pegasusautoracing.com/p...MIvo-fu4GJ6gIVCEmGCh0CKA6tEAQYASABEgLFpfD_BwE

    Then just make up a braided line with female AN fittings on both ends.
     
  3. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    What fuel pump do you have, standard or Stage1? There will be a difference in the steel lines. Where did you buy the steel line you are trying to use?
     
  4. flh73

    flh73 Gold Level Contributor

    I've had to manipulate every repop line I've gotten. Couple from inline tube, even one from ebay. Yours looks pretty close but yeah is it for a stage 1 fuel pump they are different.
     
  5. Schurkey

    Schurkey Silver Level contributor

    Common as dirt for pre-bent fuel, brake or "whatever" tubes to NOT fit properly. I bend my own. Then I know right away whether it works or not, and who to blame.

    Tubing is cheap.
     
  6. hgiljr

    hgiljr Well-Known Member

    Bringing this topic back as I have not had a chance to work on the car. As for which fuel pump, in all honesty, I have no idea. How can I tell?

    Today I had the end of the tubing on the side of the fuel pump trimmed a bit to see if it would help. No luck. I tried to adjust it a bit but do not want to bend to much to avoid further restrictions at the bends. Was trying to keep the engine as stock looking as possible, but might have to look into braided lines and make such investment.
     
  7. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    Standard 455 fuel pump,
    Standard455FuelPump.jpg
    Stage1 fuel pump,
    Stage1Pump.jpg
     
  8. hgiljr

    hgiljr Well-Known Member

    I was just looking online and was going to respond but you beat me to it. Definitely have the stage 1 fuel pump.
     
  9. bostoncat68

    bostoncat68 Platinum Level Contributor

    I feel your pain, frustrating to try to buy stuff and find out it doesn't fit. Return it if you can. I resent paying full price for stuff that doesn't fit. If you bend it you can't return it and it still won't fit. Pay more and order it locally or have someone make it for you...assuming you don't have the tools
     
  10. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

  11. mrolds69

    mrolds69 "The Cure"

    If you have a Stage 1 type pump on your engine, then you can't buy a line that will fit it.
     
    SpecialWagon65 and bostoncat68 like this.
  12. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    Jason (Buick64203) could make you one.:) I bet it would fit better.
     
    bostoncat68 and mrolds69 like this.
  13. Schurkey

    Schurkey Silver Level contributor

    Bending tubing is not that hard. I use Imperial tubing benders for the most part. I have used "Universal" benders, they work, but they don't make it easy. Double-wall, seamless steel tubing especially for the pressure side of the fuel pump was used by the OEMs because it's flat-out safer than hose.

    IF (big IF) you insist on using hose (I specifically don't recommend hose on the pressure side of the fuel pump where it can be avoided) at least use the PTFE/Teflon liner with steel-braid covering; and the appropriate hose ends. Rubber-based hose is permeable, gas vapors gets through the hose and stinks up the garage, it has a shorter service life than PTFE hose. It's also bulkier and heavier than the Teflon-liner style.

    Friend of mine burnt up a Holley Tri-Power system on a '65 Impala because he didn't replace his "steel braided" rubber-based hose when it was past it's service life. The hose was, of course, on the pressure side of the electric pump. When the hose split, the pump flooded the engine compartment with gasoline. They were smart enough to throw the thing in neutral, and push the burning car out of the driveway and into the street so the house was saved. (The Fire Department got lost on the way to his house.) Car was totaled. I wound up with the remains of the Tri-Power, which had one melted carb, melted vacuum pod on another, but has since been put back to operating condition.)

    I also carry fire extinguishers in most of my cars; which has helped two other motorists (so far.)
     
  14. SpecialWagon65

    SpecialWagon65 Ted Nagel

    Do you have a 67 carb as well? 67 is the last year for the side inlet.
    If you have a later carb and still want a pre- bent line then that would be the same as a 70 Stage 1.
    If you still have a 67 Q-jet - you may be bending one "special" line, since the stage 1 pump was not a thing in '67.
     
    mrolds69 likes this.
  15. hgiljr

    hgiljr Well-Known Member

    It’s original 67 carb with side inlet. I agree. Nothing online. I have been searching online with no luck. I will look into making my own tube or finding someone local. If anyone on the forum knows of a place that would make it or someone on the forum, let me know. Thanks for all info.
     
  16. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    PM Jason (Buick64203). He might make you one if he can find a side inlet Qjet to model it.
     
  17. 1973gs

    1973gs Well-Known Member

    That's actually a hard line to duplicate. I'd like to know how they made the original lines. If you bend the line first, there's not enough length to get the fitting on along with the flaring tool, If you flare the line first and then slide the fitting on. it's too close to the fitting to get the tubing bender on the line. The line that you received looks to be about as close to the original that you can bend and flare with normal flaring and bending tools. You can duplicate that one yourself, but not the original.
     
  18. hgiljr

    hgiljr Well-Known Member

    I agree. This one is close but too short as it doesn’t line up with carb without doing further bends. Also at the fuel pump it’s a mission to connect. I get the tube into the inlet but won’t be able to screw the nut. If I bend it more then it’s restricted. I guess that’s why the one I’m replacing was so bent and restricted.
     
  19. mrolds69

    mrolds69 "The Cure"

    You could just go back to the right pump for $25.-30.00. Unless you are pushing big horses, or racing, you wouldn't notice a difference.
     
  20. Canadian GS 350

    Canadian GS 350 Well-Known Member

    CA5AE217-9C9D-4F09-AD76-C4D714E4CC32.jpeg If you have the right tools, it’s not hard to make. The two tight 90’s at the pump are the difficult ones. I started with a 3/8 pre made line 36 inches long from Lordco. Having the correct bender is a must.
     

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