Holley Electric Fuel Pump Question...
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Holley Electric Fuel Pump Question...

  1. #1
    Member Jethro Jugbottom's Avatar
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    Default Holley Electric Fuel Pump Question...

    Can anybody tell me were the over flow hose connects to the carburetor?


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    Senior Member DuaneHTP's Avatar
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    Or in to the special orfice on a covered engine flame arrestor where there is not vacuum pulling on it all of the time.

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    Member Jethro Jugbottom's Avatar
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    Is it bad to connect it to the vacuum port?

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    Resident Ford Nut Sleeper CP's Avatar
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    Quote Originally Posted by DuaneHTP View Post
    Or in to the special orfice on a covered engine flame arrestor where there is not vacuum pulling on it all of the time.
    That would make sence, or at least more sense than uder the carb.

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    Senior Member Oldsquirt's Avatar
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    Quote Originally Posted by Jethro Jugbottom View Post
    Can anybody tell me were the over flow hose connects to the carburetor?
    Quote Originally Posted by Jethro Jugbottom View Post
    Is it bad to connect it to the vacuum port?

    I guess it is safe to assume you do not have a "marine" carburetor? If you did, you would see a connection for the necessary hose somewhere high on the main body. This connection would lead into the top of carburetor throat.
    Your best bet is to follow Duane's advice above if your carb is not equipped for the hose. Worst choice would be a vacuum source, as it may actually pull fuel past any internal seals in the pump. That's not the intended purpose of the vent system and could potentially create performance problems and/or early pump failure.

  8. #6
    Cas
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    Quote Originally Posted by Oldsquirt View Post
    Worst choice would be a vacuum source, as it may actually pull fuel past any internal seals in the pump. That's not the intended purpose of the vent system and could potentially create performance problems and/or early pump failure.
    Saw it happen to someone's boat just a couple of years ago.

  9. #7
    Jet boat service
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    Duane is exactly right. This hose goes to an air cleaner port or, as suggested, the port on the neck of a marine carb. Not a vac source. Jim

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