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Thread: Fuel pressure regulator to suit carb, return line, fuel pump questions.

  1. #11
    Hair model Jacobxxx's Avatar
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    Nah, keep same lines, you're over thinking the fuel system, carbs don't need much fuel, literally just put a facet pump on and don't worry about anything else ever.

  2. #12
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    Legend, thanks Jacob.

  3. #13
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    Wow, my old thread getting bumped up.

    Life got in the way - still haven't got an engine in my car, lol.

    But yeah, super low pressure. Hard/soft lines are fine. Braided with $50 fittings is mad overkill

  4. #14
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    Bumping this thread to keep everything in one place.

    On the ADM tank - these are the lines.

    Got to wire in my fuel pump and hook everything up.

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    Making sure for my and other people looking, this is correct?

    Also, in the engine bay there is that hard line that loops from the bottom near the fuel rail to up near the brake booster. What is this for?


    My car never came with any lines or anything fitted correctly
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    Last edited by Jrad; 7th March 2016 at 08:32 PM.

  5. #15
    Senior Member Dylan's Avatar
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    That line that loops back around is the where the fuel went after the fuel filter and then into the fuel pump, this is only used on the 4AC engine so not needed on a 4AG (remove the clamp and take the line out of the holder).

  6. #16
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    Good to know, I was planning on removing it as it doesn't seem to do anything.

  7. #17
    Senior Member Hen may possibly be a nut's Avatar
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    You've labelled the fuel lines correctly, but it is also possible to use the two 6mm lines as feed and return, leaving the smaller line for the vent. Probably negligible difference, but may solve some idle problems if you are pushing the limits of the stock stuff.

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