Hydraulic oil blown into engine

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    • July 15, 2012 at 10:50 pm #34885
      Tinbender
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        What's the valve box for? Is it open center? Hope your pump surivedembarassed

      • July 16, 2012 at 8:15 pm #34828
        Hans
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          Pump seems OK. The replacement valve box was needed, finally, because the old valves were always sticking, leaking and have always been super-clunky. One valve finally froze,

        • July 16, 2012 at 9:40 pm #34886
          RichWaugh
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            You don't say what the “valve box” is for – loader?  Is it an open-center valve – it has to be in order to work with these systems.  A closed-center type valve will deadhead the pump because there is no continuous flow through it.

            Assuming that you have the correct style and size of valve assembly for your purpose, my  best guess would be that one of your quick-disconnects in the loader lines has failed or is not seated correctly – this also deadheads the system.  Many owners simply remove the QC's entirely and just screw the lines together to avoid this – I purchased after-market QCs from Ronald at RanchHand Supply and replaced the Chinese ones just to be safe. 

            If it is neither of those causes, you'll need to go through the entire system, preferably with a pressure gauge, to determine where the deadhead is occurring. 

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