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  1. #1
    New Member
    Join Date
    Sep 2012
    Posts
    3
    Location
    Kamloops BC Canada
    Tractor
    1964 International 504

    Default 1964/65 IH 504 4cyl Diesel

    I have an issue with the hydralics on my little 504. I had a hyd leak at my controllers a few years back and replaced it and after a couple of years started to lose my brakes and lifting and tilting ability on the loader. I bought a rebuilt primary pump from a dealer as the shafts were bad on mine and replaced the primary and the old secondary which was fine as farm as they could tell. Replaced the filters and yesterday fired the old girl up for the first time since and no difference. No brakes and the loader will tilt ok but slow and the loader will lift a little but as she warms up it all goes away. Is there a relief valve in the system that could have failed or fouled? The loader runs straight off the tractor not using its own pump. It used to run great now it runs like me Thanks for any ideas. Mark

  2. #2
    Elite Member
    Join Date
    Dec 2007
    Posts
    3,025
    Location
    texas
    Tractor
    7040 HDC 1153 fel

    Default Re: 1964/65 IH 504 4cyl Diesel

    Quote Originally Posted by Bogey679 View Post
    I have an issue with the hydralics on my little 504. I had a hyd leak at my controllers a few years back and replaced it and after a couple of years started to lose my brakes and lifting and tilting ability on the loader. I bought a rebuilt primary pump from a dealer as the shafts were bad on mine and replaced the primary and the old secondary which was fine as farm as they could tell. Replaced the filters and yesterday fired the old girl up for the first time since and no difference. No brakes and the loader will tilt ok but slow and the loader will lift a little but as she warms up it all goes away. Is there a relief valve in the system that could have failed or fouled? The loader runs straight off the tractor not using its own pump. It used to run great now it runs like me Thanks for any ideas. Mark
    sounds like you have s blown hydro pump that needs rebuilding or replacing again.

  3. #3
    New Member
    Join Date
    Sep 2012
    Posts
    3
    Location
    Kamloops BC Canada
    Tractor
    1964 International 504

    Default Re: 1964/65 IH 504 4cyl Diesel

    Its a brand new rebuild and took a long time and $800 to get I am hoping on the relief valve that could be under the seat Maybe???

  4. #4
    New Member
    Join Date
    Sep 2012
    Posts
    3
    Location
    Kamloops BC Canada
    Tractor
    1964 International 504

    Default Re: 1964/65 IH 504 4cyl Diesel

    Its a brand new rebuild that took months and $800 to get I am hoping for a fouled relief valve

  5. #5
    Elite Member
    Join Date
    Dec 2007
    Posts
    3,025
    Location
    texas
    Tractor
    7040 HDC 1153 fel

    Default Re: 1964/65 IH 504 4cyl Diesel

    then there has tobe a stuck valve somewhere.

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