I have a 1991 kioti lb1914. Engine has problems. Coolant goes straight into crankcase. I was told head gasket blown. Wasn’t so. So I replaced head with new , with new injectors and glow plugs. Problem remains. Tractor has new seat, tires all hold air, engine runs 4wd, power steering, much much more. Engine block could be bad. I’m tired of fooling with it. For pics and video of engine running text your cell to me. My number 478-285-2541. First 1500 takes it. Have all sheet metal