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Message: <blockquote data-quote="Tazza" data-source="post: 14775" data-attributes="member: 82">The relief valves for the drive will be near where the hoses attach to the pump, they will be behind the plugs that are screwed into the pump body. Basically the middle section of the pump is where the pressure is generated. One side is the charge pressure relief valves, the other is the high pressure ones, set up 5,000 PSI.If your oil is milky you really need to drain all your oil! you will need to fill and dump it a few times. The water may have even rusted the pistons in the rotating group in place, that would also give you no drive on one side. I can't stress it enough, oil in s hydraulic system WILL cause damage if you don't get it clean, and fast. There are a lot of close tolerance parts that move, without the lubrication of the oil they will wear out quickly.Worst case and your pump is dead, all is not lost. You can get a re-co pump for around $1,800 USD. Motors are about $600 USD each.</blockquote>