I have a early 1020 with the old style scv. When I use the one valve that tilts my loader it wants to keep feeding oil for a half second or so letting the bucket keep tilting. Since I know it does this sometimes, I can reverse the valve lever and bring it back and sometimes it just wants to keep tilting and then stopping. Seems like having a load on the loader makes it act up than without. Its been kind of hairy loading wood like this trying to keep the bucket level. I did put a new hydraulic pump on it last year and that was about when the problem began with having it's normal pressures again. This scv is also a float valve if that makes any difference. The bucket does drift very slowly now since this problem began and never did before. Is there an o ring blown or valve not seating in the scv? How hard are they to rebuild? My manual says about it taking a special plate/tool to adjust them. Thanks for your help!