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Technical Whistling Holley 94 carb?

Discussion in 'The Hokey Ass Message Board' started by Doug Hines, Jul 23, 2020.

  1. Doug Hines
    Joined: Jan 9, 2019
    Posts: 219

    Doug Hines

    I just rebuilt a Holley 94. Now it whistles until you advance the throttle. Some times it stops whistling for a while and then starts again. I installed one of those new type of valves that replaces the traditional needle and seat above the float. Could that be it? Anybody ever had this happen? Dropping vacuum seems to silence it. Something it singing.
     
    dana barlow likes this.
  2. Doug Hines
    Joined: Jan 9, 2019
    Posts: 219

    Doug Hines

  3. Joe Blow
    Joined: Oct 29, 2016
    Posts: 203

    Joe Blow
    Member

    Had it happen once. Found the gasket between the body and the base was split and was pulling vacuum. Had noise and carb was stumbling.
     
    dana barlow likes this.
  4. I thought the Holley "Teapot" carbs were the only ones that were supposed to whistle.
    :p
     
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  5. Doug Hines
    Joined: Jan 9, 2019
    Posts: 219

    Doug Hines

    I will check the gaskets. If it would whistle a song I like, I would leave it.
     
    ClayMart, dana barlow and Joe Blow like this.
  6. Joe Blow
    Joined: Oct 29, 2016
    Posts: 203

    Joe Blow
    Member

    :D
     
    Doug Hines likes this.
  7. CNC-Dude
    Joined: Nov 23, 2007
    Posts: 887

    CNC-Dude
    Member

    Definitely symptomatic of a vacuum leak, could also be worn throttle shaft so check that also.
     
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  8. Doug Hines
    Joined: Jan 9, 2019
    Posts: 219

    Doug Hines

    Found a leak between the base and the middle section. Double gasketed it and no more whistle.
     
    wraymen likes this.
  9. Joe Blow
    Joined: Oct 29, 2016
    Posts: 203

    Joe Blow
    Member

    You can always stick a Wolf Whistle on if you get to missin it.;)
     
    Doug Hines and ClayMart like this.
  10. jimmy six
    Joined: Mar 21, 2006
    Posts: 6,678

    jimmy six
    Member

    Jeez... I thought it was a Rochester FI in disguise:confused:
     
    Doug Hines likes this.

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