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buick at TDC, marking harmonic dampner

Discussion in 'Early CJ5 and CJ6 Tech' started by piffey263, Dec 24, 2013.

  1. Dec 24, 2013
    piffey263

    piffey263 Active Member

    Medford, OR
    Joined:
    Oct 16, 2008
    Messages:
    1,214
    I switched out my timing cover on the Buick 225 in the 66 jeep a while back with a timing cover from a buick 215. Everything fits besides the timing marks on the wrong side.

    My question is can I take my dremel tool and cut a line in the harmonic dampener when I align the dial indicator at TDC at compression stroke. That way I can time the engine using the buick 215 marks and a timing light? otherwise I will just scribe lines on the drivers side timing cover where top dead center is.

    Just wondering if a cut in the damper would affect the balance of the engine enough to cause problems.


    and just to clarify the intake and exhaust valve is closed at top dead center (compression stroke) on the buick correct?
     
  2. Dec 24, 2013
    Warloch

    Warloch Did you say Flattie??? Staff Member

    Falcon, CO
    Joined:
    Mar 4, 2003
    Messages:
    5,466
    You can mark it that way - don't thing it would have that much impact on balance, but I have been wrong before. If you do - you will have 2 marks - be sure to take care of the other one. I would have put a 225, 231, or 350 on before the 215 route. They are on the same side, just a few degrees off of stock with the 350 and 231 covers.

    Yes - DTC on compression stroke.
     
  3. Dec 24, 2013
    oddfirejeeper

    oddfirejeeper Active Member

    Hamilton, MI
    Joined:
    May 5, 2004
    Messages:
    1,253
    use a piece of chalk to make the right mark show up better with your timing light. my cover was from a 350 buick and needed a little tinkering because the marks were not in the right spot as warloch pointed out
     
  4. Dec 24, 2013
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
    Joined:
    Sep 23, 2002
    Messages:
    12,529
    I like to use white Testors model paint to mark timing marks. Works very well and stays intact for a long time.


    Sent from my iPhone
     
  5. Dec 24, 2013
    piffey263

    piffey263 Active Member

    Medford, OR
    Joined:
    Oct 16, 2008
    Messages:
    1,214
    thanks guys,


    I will try model paint if it will last long enough



    I didn't realize it was a 215 cover and I needed a cover.


    Sent from my iPhone using Tapatalk - now Free
     
  6. Dec 24, 2013
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
    Joined:
    Sep 23, 2002
    Messages:
    12,529
    Maybe use a triangular file to lightly file in a notch so not much material is removed then fill the notch with the model paint.


    Sent from my iPhone
     
  7. Dec 25, 2013
    noahlon

    noahlon Old Fart

    Pine Ridge, AR
    Joined:
    Dec 22, 2010
    Messages:
    206
    White out paint used to correct typing errors works also.
     
  8. Dec 25, 2013
    Warloch

    Warloch Did you say Flattie??? Staff Member

    Falcon, CO
    Joined:
    Mar 4, 2003
    Messages:
    5,466
    I use a toothpick to put silver model paint on my timing marks :)
     
  9. Dec 26, 2013
    1960willyscj5

    1960willyscj5 Well-Known Member

    Mesa, Arizona
    Joined:
    Nov 27, 2006
    Messages:
    2,793
    Nail polish works. The enamel stuff.

    I don't remember how long it lasts though. And you get a whole world of colors an shades to choose from.
     
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