Initial adjustment of airflow meter on CIS 200 1982

Discussion in 'General Motoring' started by Weldman, Aug 22, 2006.

  1. Weldman

    Weldman Guest

    I'm having to put back together an airlfow meter on a CIS-equiped 244
    that I recently bought. The previous owner took it completely apart
    thinking it should be cleaned. In the process, he removed the screw
    that adjusts the mixture. Anyway, Acording to the Volvo greenbook, the
    3mm screw should be turned until fuel "begins to flow from an open port
    on the fuel distributor" and then turned back counter-clockwise 1/2
    turn. These are the instructions for replacing the part with another
    one.

    Does this mean that fuel should just become visable in the open port,
    or should it be flowing out? I know I will have to fine tune the CO
    once I get it running, but for now, I just want to get it started.

    I tried turing the 3mm screw until fuel just appears, but I've still
    got a no start. The injectors spray when the flap is manually raised
    and the pumps are on, so I know I'm getting fuel, just not the right
    amount.

    Any ideas?
     
    Weldman, Aug 22, 2006
    #1
  2. Weldman

    Tim.. Guest


    Well with the engine cranking it pulls the flap open and so fuel is
    injected. If you are only somewhere near correct it should fire or splutter
    if not run. Spluttering if its too lean, but should run even if its too
    rich. You should be able to determine whether it needs more fuel or less.

    Tim..
     
    Tim.., Aug 22, 2006
    #2
  3. Weldman

    User Guest

    What you can do is lift the the airflow sensor plate with the allen
    wrench while someone is cranking the motor. When it starts fiddle the
    screw back and forth a little at a time until it will idle on its own.
    Then trim it a little either way until it idles best possible then back
    it out until the idle starts to fall, then back clockwise a 1/4 turn and
    it should be happy to start and idle.

    Bob
     
    User, Aug 24, 2006
    #3
  4. Weldman

    zencraps Guest

    Is the movable round disc centered perfectly?

    Is it within spec. distance from the top of the bore it rests in?
     
    zencraps, Aug 24, 2006
    #4
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