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Edelbrock linkage diagram or photo needed

Discussion in 'The Hokey Ass Message Board' started by millersgarage, Aug 7, 2009.

  1. millersgarage
    Joined: Jun 23, 2009
    Posts: 2,303

    millersgarage
    Member

    I am rebuilding my Edelbrock 1405, all is soaked and cleaned up. Reassembling the secondary side linkage, and something does not seem correct.
    I searched the Edelbrock site for a diagram, and could not find one. Almost all photos of an assembled carb online are the same shot used for sales.

    So what I am looking for is a clear closeup shot of the secondary side linkage, or a diagram showing the springs installed.

    what does not seem correct, is that there is no pressure on the throttle blades to return to closed. I assume the springs on that side are there to close the throttle. Maybe I am wrong

    thanks
     
  2. This is all I have right now.
    [​IMG]


    If you don't find anything else I can shoot some specific close-ups in the morning.
     
  3. dalesnyder
    Joined: Feb 6, 2008
    Posts: 635

    dalesnyder
    Member

    No picture, but yes the spring wound around the lower shaft on the choke side does close the butterflys. From memory, the spring locks in to a step on the throttle body and has a hooked arm on the outboard end that hooks around the cam on the end of the throttle shaft.. On some this cam is held on with a screw and sits on two flats machined in the shaft. Maybe this is on backwards.
     
  4. Here it is in the original size, but cropped so it's a reasonable size for the HAMB.

    [​IMG]
     
  5. millersgarage
    Joined: Jun 23, 2009
    Posts: 2,303

    millersgarage
    Member

    Thanks for these, but not quite enough detail.

    The secondary spring was easy to figure out, but the main spring does not seem to do anything.

    please keep on suggesting.

    Thanks
     
  6. millersgarage
    Joined: Jun 23, 2009
    Posts: 2,303

    millersgarage
    Member

    Thanks for that link, a wealth of info there.

    Yes the primary shaft on the secondary side--the one in your photos. The primary shaft has 3 brackets and 1 spring.

    I have assembled them to look like the way it is in your shots, but there is no tension on it at all, to close the butterflies.
     
  7. millersgarage
    Joined: Jun 23, 2009
    Posts: 2,303

    millersgarage
    Member

  8. Did you pre-load the spring by spinning it one full turn?
     

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