Crankshaft Pulley Bolt

Discussion in 'General Motoring' started by Craig, Oct 3, 2005.

  1. Craig

    Craig Guest

    I'm having difficulty removing crankshaft pulley bolt using impact wrench on
    my '96 Elantra. Any chance this bolt could be left hand thread? I have the
    impact wrench set to remove the bolt counter-clockwise.

    Craig, Oct 3, 2005
  2. Craig

    99trooper Guest

    Well if this helps any...

    On my 99 Sonata (v6...not that it matters) I tried the same thing, with
    the impact wrench- didn't work. I ended up trying to hold the engine from
    turning while I used a breaker bar by putting something through the cam
    sprocket to help the old timing belt to help stop the turning- big
    mistake. DON'T do it by putting something in the cam like I did- it

    Anyway, on to your problem... I ended up using a breaker bar and a piece
    of wood and a large screw driver to jam against the pully and the end in
    the wheelwell (to stop it from turning) and then cranked the bolt off. By
    the way, mine was standard thread out (lefty loosy, righty tighty)... so
    counter clockwise out.

    It was as if the bolt was coroded to the pully (may be that's just our
    weather in WI though)

    Good luck.
    99trooper, Oct 4, 2005
  3. Craig

    Bob Bailin Guest

    It's a right-hand thread. Make sure your impact wrench delivers at
    least 200 ft/lbs. Some of the cheaper 1/2" electric models just aren't
    strong enough. And a lot of torque is lost because the crankshaft is
    free to turn.

    Try alternating between tightening and loosening the bolt, 10 seconds
    at a time, in order to break the threads free. It can take up to five
    minutes before the bolt comes loose. Allow the impact socket to
    cool down if it gets too hot.

    Bob Bailin, Oct 4, 2005
  4. Craig

    hyundaitech Guest

    In some of the toughest cases, I've had to remove the torque converter
    cover and put something in the teeth of the flywheel to prevent it from

    On some cars, it's also possible to attach a breaker bar to the bolt and
    use the starter to break the bolt loose. Figure out which way the engine
    turns, install the breaker bar and rest against something it won't be
    to break, and turn the key momentarily to start and back off. Make sure
    you don't allow the engine to start and run for any length of time. Bad
    things could happen.
    hyundaitech, Oct 4, 2005
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