Crankshaft Pulley Vibration, 94 accord lx, HELP

Discussion in 'Accord' started by zachb, Jan 9, 2006.

  1. zachb

    zachb Guest

    I bought this accord 5 months ago with only 93k. I changed the front
    engine mount since it caused vibration at idling. I also changed timing
    belt, water pump and all three drive belts 1 month ago. Now the car
    runs fine although at idling there is still some vibration. Since it's
    much better than before I replaced the front engine mount, it dosent'
    bother me too much.

    Today when I topped off the ps oil while the car idling, I niticed the
    crankshaft pulley (and the other pulley? seems like there are two
    pulleys there) has some vibration, while the other two pulleys above
    have no vibration at all. IS THIS NORMAL?do all crankshat pulleys have
    some vibration when the car idling? I am afraid the honda dealer
    screwed something while they did the water pump job.

    I searched this board, sb said there is some seal between these two
    pulleys, when it's broken, the crankshaft could come off. I hope that's
    not the problem I am having right now.

    zachb, Jan 9, 2006
  2. I'm not sure I understand - are you saying the crankshaft pulley wobbles, or
    that it doesn't seem to be round, or something else?

    As to the vibration, if the transmission is automatic rather than manual the
    rear engine mount should change to a softer mode when idling in gear. The
    lever that operates an internal valve can be seen to turn under those
    conditions if the control is working correctly, although it may be easier to
    feel the movement than to see it.

    Michael Pardee, Jan 9, 2006
  3. whoever was doing timing belt change didn't properly refit crankshaft
    pulley, i don't think it really matters that much since this isn't
    aftermarket pulley but overtime it will cause wear on plastic cover in some
    places, im not really sure about marks on the stock honda pulley, maybe
    there are some marks like btdc or something like that; personally i wouldn't
    touch it till ur next timming belt change, hope it helps, N.S
    rafal slodkowski, Jan 10, 2006
  4. If the pulley isn't fitted to the crankshaft properly it will chew up the
    mating area pretty quickly... not a great big deal if the crank is much
    harder than the pulley (you'll just need a new pulley) but I suspect they
    are similar in hardness. Replacing the crank is something you don't want to
    do! Verify or rule this out now.

    Michael Pardee, Jan 10, 2006
  5. zachb

    zachb Guest

    Thanks for all the input, guys.

    I hope I don't need another big job on my car.
    zachb, Jan 10, 2006
  6. zachb

    zachb Guest


    thanks, the crankshaft pulley wobbles a little. Somebodya suggested
    this might be the balance shaft out of time.
    zachb, Jan 10, 2006
  7. zachb

    Elle Guest

    Another possibility: I wonder if the key that helps affix
    the pulley is worn and so allowing a bit of play (or the
    pulley itself is worn where the key fits). The key costs
    only a few bucks. Might want to change it. A substitute used
    pulley might be had for $50.

    The pulley bolt seems tight, right? Definitely check that

    That this started after you did the timing belt change does
    suggest it wasn't all put together quite correctly. Maybe,
    unfortunately, redo the whole job. When you get to the
    pulley, wiggle it and see if there's any play there.
    Elle, Jan 10, 2006
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