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Thread: Harley J Engine Balance Factor. Again!

  1. #11
    Join Date
    Sep 2001
    Location
    Palmerston North, New Zealand
    Posts
    907

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    John,
    Perhaps we should stick to Vee twins on this post.
    Multi cylinder, in line engines open up all sorts of other issues that are not present in Vee twins.
    Rocking couple is just one of these.
    Peter Thomson, a.k.a. Tommo
    A.M.C.A. # 2777
    Palmerston North, New Zealand.

  2. #12
    Join Date
    Jun 2001
    Location
    Central Illinois, USA
    Posts
    3,329

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    Again I must agree with Tommo, Folks!

    Single-throw V-twins take most of the complications of balancing out of the equation; They don't even know they have two pistons.

    V-twins have such a wide range of acceptable factors that nearly any will run "smooth",... as long as the assembly is true.
    But please note the wide variance of frame support as well, as it is basic to the original factory factor.

    Many of us have suffered "shakes" if the top motor mount comes loose. That's because the motor is suddenly out of balance!

    ....Cotten
    Last edited by T. Cotten; 04-11-2017 at 04:11 PM.
    AMCA #776
    Dumpster Diver's Motto: Seek,... and Ye Shall Find!

  3. #13
    Join Date
    Jun 2001
    Location
    Central Illinois, USA
    Posts
    3,329

    Default

    By the way, Folks,

    Did anyone notice a problem with the last "Questions and Answers" page (courtesy of Tommo...)

    Just don't want anyone more confused than necessary,
    (Wish I could have gotten the line more accurate, but everybody should get the idea._

    ....Cotten
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    Last edited by T. Cotten; 04-14-2017 at 05:10 PM.
    AMCA #776
    Dumpster Diver's Motto: Seek,... and Ye Shall Find!

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