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Technical 9super7 fuel spual?

Discussion in 'Traditional Hot Rods' started by mark hogan, Apr 16, 2026 at 4:20 PM.

  1. mark hogan
    Joined: Jul 27, 2022
    Posts: 167

    mark hogan
    Member

    Hey just about to find some Stromberg 97s and ditch the 9super7s - running tri power now. My problem is fuel pressures at 1-2psi fuel bowls at 1/4 from top ! But sill weeps fuel out around accelerator pump on top of carb and runs down sides. This is the main carb other two are secondary’s no problems there. Any clues. This is my third new carb from speed way. I’ve tore it’s apart every time it’s seeping and fuel 1/4 inch down not full to top of bowl? What a pain in the ***. Thanks for any ideas.
     
  2. Flatheadjohn47
    Joined: Aug 18, 2012
    Posts: 1,446

    Flatheadjohn47
    Member
    from Lewes, DE

    Fuel level—-repeat fuel level—-not float level. Remove top of 97 style carb—crank and run engine with top removed.Fuel level —-repeat fuel level should be 1/2 from top of carb body+++- - - 1/16. Replace top of carb, see if that “fixes” your overflow problem—-fuel pressure at carb 2 psi or slightly less at 1-1/2. Notice if running less fuel pressure reduce leaks around top.Good luck!! IMG_2839.jpeg IMG_1621.jpeg IMG_0272.jpeg
     
    mark hogan likes this.
  3. tubman
    Joined: May 16, 2007
    Posts: 8,367

    tubman
    ALLIANCE MEMBER

    "9Super7"? Should you tell him or do you want me to?
     
  4. mark hogan
    Joined: Jul 27, 2022
    Posts: 167

    mark hogan
    Member

    I know the answer
     
  5. mark hogan
    Joined: Jul 27, 2022
    Posts: 167

    mark hogan
    Member

    Thanks I’ll try this before I ditch these. I’ve heard this method of running with out horn on. Thank you.
     

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