I just replaced the o rings on the outer sleeve and drive spool to fix a leak on top of the tandem pump - the rear pump. I put the sleeve and spool back in how it's supposed to go, and the leak stopped but now the pump is making a whine noise, like it's starving for oil. The control lever attached to it works fine. I drained 5 gallons from the reservoir before I removed the spool, then put it back in when done. I thought it may be air in the system, but I drove it around for a good 20 minutes and that should be long enough to work it out.
My next step is to pull the sleeve and spool again and make sure a piece of dirt didn't get in there, but I doubt it. Any suggestions? Could there still be air in the system causing this noise?
My next step is to pull the sleeve and spool again and make sure a piece of dirt didn't get in there, but I doubt it. Any suggestions? Could there still be air in the system causing this noise?