Register now to get rid of these ads!

Technical Adjustment for 2GC Dashpot

Discussion in 'The Hokey Ass Message Board' started by Hotrodjohn71, Sep 18, 2023.

  1. Hotrodjohn71
    Joined: Feb 25, 2018
    Posts: 130

    Hotrodjohn71

    I want to adjust the vacuum operated dashpot on our 1965 Pontiac 326 Rochester 2GC carburetor, but my best research cannot seem to find an exact model like mine.

    Mine has only one idle adjustment screw, (drivers side) and no fast idle screw.

    The closest instructions illustrate a fast idle screw on highest step of fast odle cam, but ours has no fast idle screw.

    On our model, that singular idle screw does interact with a 3 step cam )right next to the screw in photo), but im not sure the same rules apply.
     

    Attached Files:

    Last edited: Sep 18, 2023
  2. carolina chevrolet
    Joined: Nov 14, 2018
    Posts: 211

    carolina chevrolet
    Member

    According to a Factory Service Manual from 1965 on a Rochester 2GC, to adjust the dashpot.
    With the engine in the correct slow idle position, fully compress dashpot and adjust to obtain .060 clearance between dashpot plunger and throttle lever.
     
    INVISIBLEKID and Hotrodjohn71 like this.
  3. Hotrodjohn71
    Joined: Feb 25, 2018
    Posts: 130

    Hotrodjohn71

    Thanks a million. I greatly appreciate it.
     

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.