question about holley vac secondaries

Discussion in 'Engine Topic' started by cutty, May 13, 2012.

  1. cutty

    cutty Veteran Member

    Messages:
    342
    Likes Received:
    0
    Joined:
    Dec 12, 2008
    Location:
    ontario canada
    as title says, i got to wondering today if my 4 barrels were opening, so i did the paper clip test on it and yup nothing,what im wondering is there a way to test the diaphragm?

    by the way its a holley 3310 carb
     
  2. Air_Adam

    Air_Adam Veteran Member

    Messages:
    2,927
    Likes Received:
    0
    Joined:
    Feb 7, 2004
    Location:
    Saskatoon, SK, Canada
    Take it out and look for potential leaks (holes, tears, improperly fitted to mating surface, etc)... if you find none, try a lighter spring and try the paper clip thing again.
     
  3. cutty

    cutty Veteran Member

    Messages:
    342
    Likes Received:
    0
    Joined:
    Dec 12, 2008
    Location:
    ontario canada
    found a hole near spring plate, got it changed now
     
  4. JasonZE

    JasonZE Veteran Member

    Messages:
    518
    Likes Received:
    7
    Joined:
    Sep 11, 2009
    Location:
    NewZealand
    what spring was in there? my new 3310 came with the heaviest spring they make so went to the purple spring (middle) and was way better as they open so much sooner I may try a lighter one still when i get time but happy so far.
     
  5. Damon

    Damon Veteran Member

    Messages:
    12,939
    Likes Received:
    21
    Joined:
    Nov 16, 2000
    Location:
    Philly area
    The 3310 should come out of the box with the "plain" spring.
     
  6. cutty

    cutty Veteran Member

    Messages:
    342
    Likes Received:
    0
    Joined:
    Dec 12, 2008
    Location:
    ontario canada
    mine had the black 1 in it, but as of last night now has a plain 1 in it,
     
  7. JasonZE

    JasonZE Veteran Member

    Messages:
    518
    Likes Received:
    7
    Joined:
    Sep 11, 2009
    Location:
    NewZealand
    mine was a new 3310s and had black.
     
  8. cutty

    cutty Veteran Member

    Messages:
    342
    Likes Received:
    0
    Joined:
    Dec 12, 2008
    Location:
    ontario canada
    i have it working now, just ordered a spring kit for it,gonna try some lighter springs and see,
     
  9. CorkyE

    CorkyE Veteran Member Lifetime Gold Member

    Messages:
    10,453
    Likes Received:
    508
    Joined:
    Nov 4, 2004
    Location:
    Ringgold, GA
    Just keep going lighter on the spring until you get a stumble, then go back up one.
     
  10. z28cp

    z28cp Veteran Member

    Messages:
    345
    Likes Received:
    12
    Joined:
    Jan 16, 2009
    Location:
    Bellevue, NE
    Curious... What is the 'paper clip test'?
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.