Bobcat 743 skidsteer

Discussion in 'General Diesels' started by mackmack, Oct 12, 2017.

  1. mackmack

    mackmack Full Access Member

    Posts:
    54
    Likes Received:
    2
    Joined:
    Mar 10, 2015
    Location:
    pa
    Does anyone here have a experience with these. It has a little 4cyl na engine made by kubota. I recently purchased it . It has a few issues. No one being that it overheats. It starts and runs but it over pressure the coolant system causing it to blow our the cap on the coolant reservoir. Rad is good and clean. No oil in coolant or coolant in oil. Previous owner thinks it is a head gasket problem but there are no external leaks.im thinking maybe a thermostat or waterpump problem. Idk. Any advice .

    Sent from my SM-G530T using Tapatalk
     
  2. snicklas

    snicklas 6.0 and Loving It!! Staff Member

    Age:
    43
    Posts:
    4,485
    Likes Received:
    325
    Joined:
    Aug 7, 2006
    Location:
    Greenfield, Indiana
    I've not had any experience with the 4cyl Kubota diesels, but in my IH Cub Cadet hobby, there were a few 3 cyl Kubota Diesel and Gas engines put in a few models of Cub's. I would start with the thermostat water pump...... KUBOTA ONLY (take your Vaseline with you). These can have thermostat issues. However, pressurizing the the cooling system does worry me. We had a guy with this same type of issue, and found it was a head gasket. Hopefully not, and I don't remember him mentioning mixing of fluids, would just get hot and spew......... They are nice little engines, one day I want a rattly Cub Cadet.......
     
  3. mackmack

    mackmack Full Access Member

    Posts:
    54
    Likes Received:
    2
    Joined:
    Mar 10, 2015
    Location:
    pa
    Well if it is a head gasket I have no problem with that but I don't want to pull a head and find out afterwards it's was something simple like a thermostat

    Sent from my SM-G530T using Tapatalk
     

Share This Page