I put the electric diverter valve kit on my 4310, install went great. At the same time I put in a bucket curl seal kit. All at about 480 hrs, the plan was to run the tractor for about 20 hrs and do the 500 hr service. The problem I noticed was a pronounced cavitation on the loader lift cilnders, no air or water in the oil. Changed the oil at 495 hrs, the cavitation got better but not gone. Can the DV cause a flow restriction? Is there any adjustment to the valve? Or somthing else I am missing?