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    Cfish1980's Avatar
    Cfish1980 Posts: 14, Reputation: 1
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    #1

    Jun 20, 2013, 02:34 PM
    Murray lawn tractor crankshaft
    The Murray is sohv155 204502a the connecting rod from piston to crank shaft broke and some aluminum is on the crankshaft from the connecting rod
    How do I clean off the aluminum without damaging the crank shaft
    smoothy's Avatar
    smoothy Posts: 25,490, Reputation: 2853
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    #2

    Jun 20, 2013, 05:05 PM
    Sorry to say... if there is aluminum stuck on the crank... its gauled and already damaged due to lack of oil.
    Cfish1980's Avatar
    Cfish1980 Posts: 14, Reputation: 1
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    #3

    Jun 20, 2013, 05:40 PM
    Thank you a Google search digested lye baking soda solution
    Then vinegar to neutralize it
    Would that work or make matters worse
    smoothy's Avatar
    smoothy Posts: 25,490, Reputation: 2853
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    #4

    Jun 20, 2013, 05:45 PM
    Quote Originally Posted by Cfish1980 View Post
    Thank you a google search digested lye baking soda solution
    Then vinegar to neutralize it
    Would that work or make matters worse
    Worth a try... you can't use it as it is now... if you are lucky the Iron crank won't be damaged under it (like as in scored, etc)... but the odds aren't in your favor.

    Careful with that stuff... use eye protection and gloves... Lye will melt your skin.
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