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Thread: Automatic Choke in Paki Alto

  1. #1
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    Default Automatic Choke in Paki Alto

    Dear salaam.

    Can we installed automatic choke in Pak Alto so it will be automatically pulled when engine is cold ?
    Or there is any other way to solve the choke problem?
    I mean as Alto has manual choke so I have to pull choke mostly when engine is cold started until the Temp needle reach near to half scale.
    If choke is not pulled while engine is cold, it is to vibrate due to low RPM, some time turned OFF.
    When engine is at optimal Temp then every thing is fine and idle RPM are 800-900.
    !! DIY in a professional WAY!!

  2. #41
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    Default

    Quote Originally Posted by uetian04 View Post
    Thanks for suggestion.

    Yes I was wrong in thinking initially but soon been reached to similar circuit in a pause and built up.
    Another better approach if u dont want to use Diode

    Automatic Choke in Paki Alto -1451439

    Dont forget to kill RFI/EMI noise caused by Ignition system.

  3. #42
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    Default

    Quote Originally Posted by uetian04 View Post
    Thanks for suggestion.

    Yes I was wrong in thinking initially but soon been reached to similar circuit in a pause and built up.
    Another way

    Automatic Choke in Paki Alto -1451443

  4. #43
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    Default

    Finally got success.
    Installed so call DIY Automatic choke in my ALTO.
    I had called it choke but it is not complete choke because it doesn't enrich A/F mixture.
    Actually it uses AC idle up solenoid to increase RPM to 1200-1500 when engine is cold.
    Seems bit high but it is matter of 2-3 min till engine warmed. When temp reached to 65 degrees then controller disable the solenoid and RPM settle at 800-900.

    Thanks to all for giving nice and useful suggestions
    !! DIY in a professional WAY!!

  5. #44
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    Default

    [QUOTE=uetian04;4467330]Finally got success.
    Installed so call DIY Automatic choke in my ALTO.
    I had called it choke but it is not complete choke because it doesn't enrich A/F mixture.
    Actually it uses AC idle up solenoid to increase RPM to 1200-1500 when engine is cold.
    Seems bit high but it is matter of 2-3 min till engine warmed. When temp reached to 65 degrees then controller disable the solenoid and RPM settle at 800-900.

    Thanks to all for giving nice and useful suggestions[/QUOTE

    Approx. 70% of wear and tear of an engine takes place while warming-up from cold to hot.
    A higher RPM to warm the engine from over night stand still position with a lean mixture will only add to increasing the wear and tear.

  6. #45
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    Default

    it won't really matter, 1.5k rpm is not an issue at all
    haters gonna hate, potatoes gonna potate

  7. #46
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    Default

    [QUOTE=imrananr;4468414]
    Quote Originally Posted by uetian04 View Post
    Finally got success.
    Installed so call DIY Automatic choke in my ALTO.
    I had called it choke but it is not complete choke because it doesn't enrich A/F mixture.
    Actually it uses AC idle up solenoid to increase RPM to 1200-1500 when engine is cold.
    Seems bit high but it is matter of 2-3 min till engine warmed. When temp reached to 65 degrees then controller disable the solenoid and RPM settle at 800-900.

    Thanks to all for giving nice and useful suggestions[/QUOTE

    Approx. 70% of wear and tear of an engine takes place while warming-up from cold to hot.
    A higher RPM to warm the engine from over night stand still position with a lean mixture will only add to increasing the wear and tear.
    Every car in the world has a fast idle system for cold running,

    the wear and tear you mention is done in the first few seconds of engine start.
    ZRS - Zulfiqar Racing Systems ..... - professionals at work - at crackwheels.com

  8. #47
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    Default

    [QUOTE=Xulfiqar;4469014]
    Quote Originally Posted by imrananr View Post

    Every car in the world has a fast idle system for cold running,

    the wear and tear you mention is done in the first few seconds of engine start.

    True, but the warm up is with RICH MIXTURE ( air to fuel ratio ) which gradually becomes normal with engine attaining normal operating temperature.

    The high RPM at start- up for every vehicle with rich mixture is around 1000 to 1100.
    1500 rpm at engine start-up from cold with lean mixture may cause mechanical wear of the engine parts.

  9. #48
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    Default

    [QUOTE=imrananr;4469051]
    Quote Originally Posted by Xulfiqar View Post


    True, but the warm up is with RICH MIXTURE ( air to fuel ratio ) which gradually becomes normal with engine attaining normal operating temperature.

    The high RPM at start- up for every vehicle with rich mixture is around 1000 to 1100.
    1500 rpm at engine start-up from cold with lean mixture may cause mechanical wear of the engine parts.
    The rich mixture is done to enable to engine to fire regularly - the engine is dead cold and heat is lost into the metals, we need a richer mixture to ignite the fuel load, once the cylinders, head and cat are hot - the mixture can be weakened. However when you start a carby car with choke, the initial suck through the carby is on choke which means really rich mix, as the engine fires the choke plate opens slightly to enable air to pass through - otherwise the engine will stall.

    here the user has done half the job, he may or may not have bad start in the winter depending on fuel quality and ambient temperature.
    ZRS - Zulfiqar Racing Systems ..... - professionals at work - at crackwheels.com

  10. #49
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    Default

    hi

    mayray electric choke ki wiring kati hoi hay... us ko kitna current dayna houta hay .. koi help karsakta hay??? EC ka wire connect hay but kaha say current dayna hay ye nahe pata chal rhaa.... plz help

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