I have a sanborn compressor and it has no compression, but it still runs, it just takes longer to pump up. I guess in need rings and whatever else. The model# is 65002bpL60v,1 stage,serial# m0705006, on a 60 gal. tank,140 psi., 5 hp. If this information helps you out and you could let me know what I need and how much it would cost, it would be greatly appreciatered. Thank you.