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  1. #1
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    Merc lightweight flywheel timing

    Can anyone share with me their method for setting timing with a flywheel that has no marks? Im assuming i need to use a 360 degree dial as well as TDC indicator but id like to have some specific instructions so i dont screw this up. Thanks!
    "The character of a man can be easily judged by how he treats those who can do nothing for him"

  2. #2
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    there are lots of posts on this site for this and many other questions. Here is an easy way to search scream and fly in google. just type in your question, or what you are looking for and in the end put "screamandfly.com" Google will search for your words and pull what it finds out of scream and fly! a link below but just google below and you will find more than enough posts to figure it out.

    flywheel marks for timing "screamandfly.com"
    flywheel indexing "screamandfly.com"

    https://www.screamandfly.com/showthr...arks&p=3270528
    Last edited by rjdubiel; 08-03-2021 at 08:03 AM.
    1973 Viper - sold
    1978 Viking - sold
    1995 XB02

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  4. #3
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    TDC FINDER THEN CUT A TINY MARK IN IT.. then like you already said a 360 degree wheel or a piece of paper with 360 degree will let you mark it for what you want... being lightened wont make any difference . TDC is TDC

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    Click image for larger version. 

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    "The character of a man can be easily judged by how he treats those who can do nothing for him"

  6. #5
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    I read an archive that said turn flywheel clockwise to TDC, mark wheel at pointer and zero dial, then turn wheel counterclockwise 0.150 on the dial and mark wheel at pointer. This should be 25 degrees advance. That sound right?
    "The character of a man can be easily judged by how he treats those who can do nothing for him"

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  8. #6
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    Yes, you are correct

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  10. #7
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    Yep
    1990 Shadow bass boat w/ 2.4 200 Merc. Totally resto'd boat and love it!

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  12. #8
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    Correct
    Quote Originally Posted by Smalltownbassin View Post
    I read an archive that said turn flywheel clockwise to TDC, mark wheel at pointer and zero dial, then turn wheel counterclockwise 0.150 on the dial and mark wheel at pointer. This should be 25 degrees advance. That sound right?

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