Mouse droppings!

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    drifter

    US Member - 1 Year
    Replies: 119
    Topics: 82
    #187253

    Just picked up a very nice 1958 Johnson 7.5hp, but was it ever a home for the mice! What is the safest (for me and the engine) way to clean this up?

    Buccaneer
    Buccaneer

    US Member - 1 Year
    Replies: 3269
    Topics: 910
    #187261

    Hazmat suit and a air supplied respirator maybe, lol, but I started with a dust mask
    and a shop vacuum. Then air hose, blowing out what I couldn’t suck. Then lots of
    WD-40 to remove some of the “mouse” residue. I ended up replacing part
    of the carb and other parts, that was ate away from urine.

    Prepare to be boarded!

    Steve D
    Steve D

    US Member - 1 Year
    Replies: 484
    Topics: 66
    #187279

    And maybe a 50/50 bleach/water solution sprayed on and let it sit and/or Lysol spray disinfectant. That mouse urine can be hazardous to your health. I hate working on motors like that.

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    aquasonic

    US Member - 2 Years
    Replies: 347
    Topics: 31
    #187327

    The most important thing is to wear a respirator, and to wet everything down before cleaning. Mouse droppings can contain deadly diseases. You don’t want that stuff getting airborne. I still remember the Hantavirus outbreak in the Southwest, carried by mice, and distributed by the droppings. People got sick and some died from breathing the air in places where the droppings were present.

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    outbdnut2

    US Member - 2 Years
    Replies: 1176
    Topics: 61
    #187341

    Be glad the mouse stuff is all on the outside. I bought a 1958 RDE-19E 35 Johnson that I couldn’t pull over all the way. I took the spark plugs out and the lower cylinder had a mouse nest in it that I could see blocking the spark plug hole. The mouse must have come up through the exhaust port.

    It amazes me how far those critters will go into things to nest. Two weeks ago I had to pull the heater fan out of my 2003 Cadillac and found a mouse nest and dead mouse totally clogging the fan blades. It had chewed through a very dirty cabin air filter to get there.

    For mouse stuff, like the others, I also start with a shop vacuum and a dust mask. Some Lysol and water in a spray bottle goes on next.
    Dave

    • This reply was modified 3 weeks, 5 days ago by Avataroutbdnut2.
    seakaye12
    seakaye12

    US Member - 2 Years
    Replies: 440
    Topics: 107
    #187356

    Assuming that all the debris is simply under the cowling but not INSIDE the engine itself….I would use a high-pressure nozzle on a water hose and spray it down good from a distance away. I have a brass nozzle that will reach clear up under the eaves of my house; that’s what I would do.

    You should find that the water spray will dis-lodge most of the problems and blast it away from you.

    It isn’t going to hurt the motor to get it wet for a few minutes; just refrain from blasting into the carburetor.

    Then; I take some dishsoap and toothbrush and finish cleaning that way. Gets most of everything and keeps the dust down.

    • This reply was modified 3 weeks, 5 days ago by seakaye12seakaye12.
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