Engine rotation direction

Discussion in 'General Motoring' started by stealthf0x, Jan 20, 2005.

  1. stealthf0x

    stealthf0x Guest

    If you're (eg) setting the valve clearences or something which requires
    turning the engine manually, should you turn it the same way or the
    opposite way to its normal direction of rotation?
    My engine turns anticlockwise looking at the flywheel end, but haynes
    says to turn it clockwise *and never anticlockwise* when turning by
    hand, but I have something in the back of my head that engine bearings
    only like turning one way, am I wrong?

    Cheers
    Andy
     
    stealthf0x, Jan 20, 2005
    #1
  2. stealthf0x

    davek Guest

    Most engines rotate clockwise-when looking at it from the front, ie:
    cranshaft pulley end.
    The reason for turning clockwise when adjusting valve clearances,etc afaik
    is to take up any backlash in worn parts.
    Bearings can take rotation in either direction without coming to harm.
    DaveK.
     
    davek, Jan 20, 2005
    #2
  3. stealthf0x

    stealthf0x Guest

    Ok, cheers dave!
     
    stealthf0x, Jan 20, 2005
    #3
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