TDC 99 Sonata help!!!

Discussion in 'Hyundai Sonata' started by 99trooper, Oct 3, 2005.

  1. 99trooper

    99trooper Guest

    Hello,


    99 sonata v6 2.5
    I do have a problem.... Being that my cams are directly opposite of TDC
    and my Timing mark on the crank is directly opposite of the TDC mark as
    well.... HOW do I get the timing alingned?

    How do I know when the crank is at TDC? Even if it is at the mark, it
    could still be wrong (not at TDC..) Should I take the plug out of # 1 to
    see when the cylinder comes to the top? I am lost now (doesn't the crank
    make 2 revolutions per each cam gear?).....

    I feel sick over this now!!!


    THANKS FOR ANY HELP!
     
    99trooper, Oct 3, 2005
    #1
  2. 99trooper

    99trooper Guest

    Ok, I'm thinking of this now...

    TDC on the crankshaft is TDC on cylinder 1 ALL the time the mark on the
    shaft is in line with the TDC mark on the engine right? (the shaft is 1
    piece that for every revolution pushes the #1 cylinder to the top when it
    is on the TDC timing mark- on the CRANKSHAFT).

    The dillema is the CAMSHAFT gears that I have to line the Timing marks on
    once the CRANKSHAFT is at TDC timing... What can I do?

    Thanks
     
    99trooper, Oct 3, 2005
    #2
  3. 99trooper

    green99 Guest

    When #1 Cylinder is at TDC, shouldn't the intake valve(s) be wide open,
    and the exhaust valve(s) closed? Or I guess maybe that should be the
    other way around. Just a thought.
     
    green99, Oct 3, 2005
    #3
  4. 99trooper

    hyundaitech Guest

    Just line up the timing marks on all the sprockets to the marks on the
    heads/block.
     
    hyundaitech, Oct 3, 2005
    #4
  5. 99trooper

    99trooper Guest

    There is no timing belt on now....Don't I have to turn the CRANKSHAFT back
    (counter clockwise) a couple teeth, and then move the CAMSHAFT clockwise
    the same amount of teeth? Or can I move any of them freely without
    worring about hitting the valves to the cylinder while lining up the marks
    (it is pretty far out now.. the cam timing marks are on the opposite side
    of the cam gear now, and the crank mark is on the opposite side of that
    gear as well.)
     
    99trooper, Oct 3, 2005
    #5
  6. 99trooper

    nothermark Guest

    sounds like you do it by feel. move the crank some, if it binds then
    rotate the cams to clear the offending valves. repeat unitl they are
    all lined up.
     
    nothermark, Oct 4, 2005
    #6
  7. 99trooper

    hyundaitech Guest

    Do make sure you don't put undue force on anything. It should be easy to
    tell if something bad is happening. It'll get nearly impossible to turn
    very quickly.
     
    hyundaitech, Oct 4, 2005
    #7
  8. 99trooper

    Dan Guest

    At TDC, both valves should be closed. TDC is the point where the highest
    compression would take place if the cylinder did not fire. Firing
    usually occurs a few degrees Before TDC (BTDC).
     
    Dan, Oct 6, 2005
    #8
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