I have an older exmark 52 lazer. It has 2 new hydro pumps on it that are both moaning like crazy. The mower was run for a total of about 3 hours with suction lines to the new pumps leaking. They are hydro gear bd10a-427 pumps. I was wandering what might be damaged inside the pumps and if it would be worth trying to take them apart and fix. Both sides pull fine forward and reverse but the pumps are noisy almost all the time. The only time they are quiet is on first start up and moving very slow.
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