Iv'e got a problem with my Case Maxxum 5120, it hasn't been used since last November I went to it today and it wouldn't start, I was pumping the lift pump and there was plenty of fuel at the filters and also at the Injector pump draw off pipe, so I cracked the injector pipes 1-3-4 (couldn't get no 2) and they were all dribbling as they do when cracked and then tightened them and it managed to fire up, took it for a spin up the farm drive and got the engine nice and warm, went back out to it tonight and it wouldn't start again, must admit it has stood outside since November in all the snow and frost etc, do you think that the frost has messed up something in the fuel line/system, tia