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Seized pup/pony motor

Discussion in 'Track Loaders' started by Brent Irwin, Sep 13, 2017.

  1. Brent Irwin

    Brent Irwin Member

    Joined:
    Sep 7, 2017
    Messages:
    6
    Location:
    Thunder Bay Ontario
    As I posted in my original thread, my pony motor has seized. Just wondering if anyone has any tricks to help unseize the motor without taking the whole thing out? An old mechanic told me to put Coca Cola in it and leave it for a week. That seems like and absolute last resort. If anyone has any tricks im all ears.
    Thanks for reading
     
  2. DMiller

    DMiller Senior Member

    Joined:
    Feb 22, 2010
    Messages:
    2,008
    Occupation:
    Retired
    Location:
    Hermann, Missouri
    We used to use acetone and rislone oil additive on old stuck engines. One frees the rust the other works on carbon
     
  3. TomA

    TomA Well-Known Member

    Joined:
    Aug 17, 2012
    Messages:
    58
    Location:
    Mariposa, CA
    Kroil is good, expensive though. Is it a vertical or horizontal pony motor?
     
  4. Hobbytime

    Hobbytime Senior Member

    Joined:
    Sep 22, 2016
    Messages:
    395
    Location:
    usa
  5. old-iron-habit

    old-iron-habit Senior Member

    Joined:
    Nov 23, 2012
    Messages:
    2,603
    Occupation:
    Retired Cons't. Supt./Hospitals
    Location:
    Moose Lake, MN
    Pull the head or heads based if it is vertical or horizontal pistons and see if the valves are stuck. They are good at sticking especially on the horizontal ponys like the D2, D4, and D6. If so they can often be freed up. The head gaskets are reusable. I would pull the head first in any event and take a look.