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Magnetic Oil Drain Plug - Results

Discussion in '2nd Gen. Tacomas' started by Mingy, Nov 24, 2008.

  1. Nov 24, 2008 at 12:23 PM
    #1
    Mingy

    Mingy [OP] Well-Known Member

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    About 8,000 km ago (5,000 miles), somebody posted a question about magnetic drain plugs or oil filters or something. Just for a laugh I stuck 2 'rare earth magnets' about 3/8" diamete on my oil plug. Then I forgot all about them.

    Yesterday I did my oil change and discovered the magets (These are really strong magnets). When I removed the plug, there was absolutely nothing in the way of metal debris on it. Nada. Like new. Clean.

    Says something about the internal fit & finish of the engine.

    This made me very happy. :)
     
  2. Nov 24, 2008 at 12:35 PM
    #2
    lsocoee

    lsocoee My hair is all natural Staff Member

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    That's good to hear. I just did my oil change and I'm going to send a sample into Blackstone Labs for an analysis. I'll be curious what they say.
     
  3. Nov 24, 2008 at 5:24 PM
    #3
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

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    the filter catches all the garbage in the engine. If you find metal in the pan, damage is already done. Oil samples are the best way to "early detect" any engine problems.
     
  4. Nov 24, 2008 at 6:36 PM
    #4
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

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    Very true, but it would show crank shaft, con rods, cams, etc. :)
    Of course, if it DID show on the plug, its too late.
     
  5. Nov 25, 2008 at 5:28 AM
    #5
    Mingy

    Mingy [OP] Well-Known Member

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    Unless Toyota is unlike any other engine, the filter takes the crap out before it is circulated to the wear surfaces. It then pools in the pan which cools the oil before it is recirculated back to the filter. The design of the pump and pan prevents a lot of stuff from even getting near the filter as a result of mechanical separation.

    All friction bearing parts are 'lapped in' through wear, resulting in some metal debris. There could also be debris left over from the manufacturing process. A portion of that metal debris would collect on the rare earth magnet. I am sure that if I examined the plug under high magnification I'd see some.

    I was reporting on an experiment, not a solution.
     
  6. Nov 25, 2008 at 4:05 PM
    #6
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

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    Coffee hadnt taken full afect when I posted, I guess. Yes, there will be some metal on the magnet, but very small. For some reason, I was thinking you were looking for large peices. :proposetoast:
     
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