• What Can I Do About a Leaking Accelerator Pump Cover.

    This problem is a frequent occurrence on the Solex Marine 44PA1 carburetor, but it can easily be fixed and you won’t have to buy another carburetor. This can be caused from years of over tightening of the accelerator pump cover resulting in a warped cover. Whenever we rebuild one of…

  • Holley 1904 Accelerator Pump Adjustment

                Adjusting the Accelerator Pump Stroke for Seasonal or Climatic Changes. Holley 1904 The accelerating pump stroke can be adjusted for seasonal or climatic changes by changing the position of the pump link in the throttle lever. The hole in the lever nearest the throttle…

  • Holley 1904, 1 Barrel Vacuum Check Ball

    Vacuum Check Ball The 1904 carburetors for automatic transmissions have a nylon check ball and retainer clip that goes in the float bowl body where the throttle body mounts to the float bowl. The manual transmissions did not need this. In our Holley kit # K421, this check ball is…