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Thread: Using the Treysit Tacho

  1. #1
    Forum God > 400 posts Club Member
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    Default Using the Treysit Tacho

    Hi all, me again...

    Sorry to be thick but can someone tell me how to use the above wire tacho please?

    I do not understand the instructions...

    Is the wire meant to rotate uniformly at the correct revolutions?

    TIA,

    B.

  2. #2
    More than 30 posts! Club Member sweetm2369's Avatar
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    Thumbs up Re: Using the Treysit Tacho

    Hi Brian,
    With the engine running rotate the dial that extends the vibrating wire until the largest amount of movement is observed then just read off the revs on the scale.

    I just rotate the dial to what I am expecting to see then you only have to move it in or out a little way to confirm the rpm.

    Hope that helps!

    KR
    Derek

  3. #3
    Extremely active > 250 posts! Club Member
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    Default Re: Using the Treysit Tacho

    place the tacho on the engine, then turn the disk to extend the wire and when it vibrates over the widest arc, read the revs off the scale.

  4. #4
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    Default Re: Using the Treysit Tacho

    Excellent, thank you gentlemen.

    B.

  5. #5
    Extremely active > 250 posts! Scrutineer
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    Default Re: Using the Treysit Tacho

    Mostly right but wind it out too far then wind it back in till you get a large swing, that way you overcome bunching in the coil
    I'r Gad!

  6. #6
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    Default Re: Using the Treysit Tacho

    Thank you Ewan, I will do that.

    B.

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