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Thread: Distributer ball bearings??

  1. #1
    Registered User Zpeed's Avatar
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    Default Distributer ball bearings??

    Hi

    for the last couple of weeks, my Z has had a few hikups, like it coughs and stutters at low revs, but i thought this was because my carbs were stuffed, and i have to top them up with some oil...

    but i opened up my distributer cap today, and saw a little ball bearing that was not held by anything... i remember the guy i bought it from showed me a stuff one and the little ball bearings were flying around the place.. so i am just asking what i should do.. the car still runs, just when it is cold it coughs a bit, but thats what i really think is the carb tuning, as my carbs are stuffed i need to tune them weekly for them to stay alive etc...

    its a l26 with 240z carbs, and a 79 electronic distributer if anyone can help me out with what i should do... i don't really want to spend any money on the car as i want to sell it soon, for a fairlady but if i gotta spend i will...

  2. #2
    Supporting Member EScanlon's Avatar
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    Default

    Vacuum Advance Bearing Mechanism.

    Common problem, it's a little piece of plastic that holds some ball bearings for the innards of the dizzy to rotate on when the vacuum pulls on the mechanism. It also has a spring which allows the mechanism to return to base point.

    As the car ages, the little plastic thing gets brittle and eventually breaks and sheds little ball bearings all over the inside of the dizzy. Common problems are hiccupping, poor idle, back-firing through the carbs, even real lousy acceleration.

    The part is available through Nissan, would have to look up the part number, but that's usually all it needs. If I recall right , they're only about $20.00 or so.

    But why sell the car?

  3. #3
    Registered User Zpeed's Avatar
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    Default

    thanks for that


    i remember on my points distributer that i had before, i glued that little peice together and that worked very well... but i'll see what i can do with this one... as this one is non points

    maybe i can use parts from my points dizzy but i will see...


    has anyone got the part number from nissan for that little part...

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