Priming fuel system.

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  • re2500
    S2Forum Fiend
    • May 2007
    • 2185
    • Country: Wales

    #1

    Priming fuel system.

    Is there a recommended method of priming the fuel system after fitting a new filter and some of the fuel line. (Finally got round to removing the 10v fuel pressure accumulator next to the filter).

    I cranked it over for a while last night, battery wasnt great so it ran down eventually.
    Is this normal, when ive done work on fuel lines in the past its not taken this long to fire up.
    Should i be cracking a fitting somewhere to help the air out? I just figured it would self prime letting the air out through through the return.
    Knowing my luck something completely unrelated has gone wrong at the same time and im barking up the wrong tree.
    Also i was thinking about the filter layout, surely due the the horizontal mounting of the coupe filter there will always be air trapped in the top?
    Black B3 1990 CQ 2.3E converted to ABY & 6spd. (301bhp) - Now Sold
    03 Dolphin B6 S4 Avant LPG - New Daily Wagon
    01 Silver D2 A8 3.7 quattro sport - SOLD

    "Difficult is worth doing"
  • prj
    S2Forum Zealot
    • Mar 2010
    • 6308
    • Country: Estonia

    #2
    Just crank it until it starts.
    http://tuner.ee - http://www.facebook.com/tuner.ee

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    • mcandmar
      S2Forum Zealot
      • Apr 2004
      • 5118
      • Country: Ireland

      #3
      From dry it should prime itself within 10-20 seconds. What i usually do after working on the fuel system is remove the plastic cover off the fuel pump relay and manually close the contacts with my finger. That way you can check for leaks and hear the air being worked out of the system.
      91CQ20v - Gone to a new home
      93UR-S4 - The Magic Carpet
      94S2Bus - The Emerald Express

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      • re2500
        S2Forum Fiend
        • May 2007
        • 2185
        • Country: Wales

        #4
        Ta! i'll give that a go!
        Black B3 1990 CQ 2.3E converted to ABY & 6spd. (301bhp) - Now Sold
        03 Dolphin B6 S4 Avant LPG - New Daily Wagon
        01 Silver D2 A8 3.7 quattro sport - SOLD

        "Difficult is worth doing"

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