My 1811 whines terribly and the sound seems to come from the lift valve not the pump so I swapped out the valve and it still whines. My 1872 whines a little but not enough to bother me but moreso when I steer. The steering cylinder went out yesterday so I swapped it out with a good one I had on a parts tractor and what do ya know the whining has nearly ceased. Now my question is is it possible the lift cylinder on the 1811 is bad and causing the whine? the deck will drop in about a half hour if left up and not running.

Scott