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Thread: 32/36 DFAV Adjustment.

  1. #1

    Array
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    03-29-2011
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    363
    Location

    Payette, ID
    Vehicle

    1991 Dodge Ram 50
    Engine

    4G64

    32/36 DFAV Adjustment.

    I really need some help, I need to know how to adjust my 32/36 DFAV carburetor, Yes DFAV. It has two screws, one on each barrel, and the secondary is missing its screw, anyway, WHAT DO THEY DO AND WHAT ARE THEY FOR????
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  2. #2

    Array
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    Offline
    Join Date
    03-29-2011
    Posts
    363
    Location

    Payette, ID
    Vehicle

    1991 Dodge Ram 50
    Engine

    4G64
    Ok, I contacted Weber and this is what they said:

    Well your missing one

    carb wont run with this missing

    these are idle jets not screws there should have been a brass threaded jet holder and a small jet that pushed into it in the missing hole

    confirm the jet sizes and we can help with two issues improved economy and performance

    If you have the jet and just have it out to look confirm the sizes and the current best idle settings for the idle speed screw and the idle mixture screw

    confirm how many turns in the idle speed screw needs to be to attain an idle of 850 to 900 rpm

    confirm the number of turns out on the mixture screw to find the sweet spot smoothest best idle location. with these numbers and the jet sizes we can confirm your calibration correctness for econmy and performance with the current emissions fuels being supplied.

    fuels do change each year and if this carb has been on for a few years it would be something that will help to improve the function of your carburetor no rebuild needed jet recalibration for leaner emissions fuels.

    we offer a jet pac with tuning guide and instructions for this situation. if your missing this jet you will need a jet holder along with the jet pac.


    Now I just need to find out my jet sizes.

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