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Idles and runs then stalls

Discussion in 'Fuel System & Electrics' started by KombiEvie, Feb 11, 2019.

  1. KombiEvie

    KombiEvie Member

    Messages:
    91
    Location:
    Berkeley Vale
    My 76 bay will start and then stall ,then its slow in starting again
    Ive done all the checks and everything looks fine
    checked the vacuum hoses and all looks well
    Plenty of fuel
    Was running fine beforehand

    Any help would be great
     
  2. Barry

    Barry Well-Known Member

    Messages:
    3,493
    Location:
    Abbotsford NSW
    What motor?
    2L type 4?
    Dual carbs or fuel injection?
     
  3. David H

    David H Well-Known Member

    Messages:
    4,534
    Location:
    newcastle
    Unlikely to use even a blocked fuel filter of fuel so quick. Spark? & resistance be my chase.
    Cheers
     
  4. tintop

    tintop Well-Known Member

    Messages:
    437
    Location:
    Canberra
    If it's a carby model...
    Will it keep going if you keep it at higher revs (main circuit) or if you pump the accelerator (accelerator pump) and only die if it's trying to idle (idling circuit)? I assume the engine is cold - so the chokes should be closed.
     
  5. tintop

    tintop Well-Known Member

    Messages:
    437
    Location:
    Canberra
    Electrics - all wires tight to and from coil, distributor and carbies?
     
  6. cbus

    cbus Well-Known Member

    Messages:
    11,657
    Location:
    sunshine coast
    Checked dwell/ points gap/ timing ?
     
  7. Barry

    Barry Well-Known Member

    Messages:
    3,493
    Location:
    Abbotsford NSW
    Was anything done between running and not running?
     
  8. KombiEvie

    KombiEvie Member

    Messages:
    91
    Location:
    Berkeley Vale
    still have issues
    its a 2l with carbies
    whats happened today is after long cranking times it will run for a few seconds ,if you pump the pedal,it will run for a few more seconds then stop
    like the bowls are empty
    its may start easy next turn of the key or it may not
    no real pattern
    ive flatten my battery trying
    checked all wiring ,appears ok ,changed the petrol filter ,it was dirty but the problem didn't change at all
     
  9. KombiEvie

    KombiEvie Member

    Messages:
    91
    Location:
    Berkeley Vale
    the problem only appeared when I thought the petrol was low and I added more fuel
     
  10. tintop

    tintop Well-Known Member

    Messages:
    437
    Location:
    Canberra
    I'd take a hose off and see if the fuel pump is pumping (enough).
    Alternatively you could fill the carbies through the top breathers and see if it runs that way...and work backwards from there
     
    David H likes this.
  11. David H

    David H Well-Known Member

    Messages:
    4,534
    Location:
    newcastle
    How was this done & from what container/fuel age?
    Cheers
     
  12. oldman

    oldman Super Moderator Staff Member

    Messages:
    8,423
    Location:
    Avalon Beach NSW
    I’d be draining the bowls on each carb. and checking for crap beyond the disposable filter......
    Cheers,
    Mark
     
  13. cbus

    cbus Well-Known Member

    Messages:
    11,657
    Location:
    sunshine coast
    Yep.
    And clean the valves into the bowls.
    Keep old ones if possible as a lot of new ones are not much chop.

    Do a fuel level check by running engine, turn off , carefully remove top of carbs, measure from carb bowl top edge down to fuel.
     

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