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Thread: 4160 pump discharge check ball?

  1. #1

    Default 4160 pump discharge check ball?

    Hey gang newbie here. I have model #80457 carb that I am rebuilding. The question I have is during reassembly I see on the instruction sheet shows the pump discharge check ball and ball weight that goes under the pump nozzle. I don't recall one being there when I disassembled it. Do all these model carbs have those parts? I see in the new kit there are two steel balls and a piece that might be the ball weight. Any help is much appreciated. Thank you.

  2. #2
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    Quote Originally Posted by dc1955 View Post
    I have model #80457 carb that I am rebuilding.
    80457 is the list number.
    http://www.holley.com/TechService/ListNumber.asp (List Number & Date Code Location)
    4160 is the model number:
    http://www.holley.com/data/TechServi...%20Listing.pdf (Holley Numerical Listing)

    The question I have is during reassembly I see on the instruction sheet shows the pump discharge check ball and ball weight that goes under the pump nozzle.
    I don't recall one being there when I disassembled it. Do all these model carbs have those parts?
    According to this 4150/4160 exploded view, only mid 70s & earlier carburetors used those two parts:
    http://www.holley.com/data/TechServi...ded%20View.pdf (4150/4160 Exploded View & Nomenclature)

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