Hey guys my long story short grandpa bought a new grass hopper n gave my dad his and it is a 721d with less than 300 hrs well.... He was mowin the other day n heard a loud noise from the engine and what I have come up with is there was an issue with #2 injector and well u can't compress liquid and it caused that rod to bend and the piston come off the rod and the rod got into the wall so I'm not sure if it can be cleaned up or not. My main question is that mower come with a kubota d722-e well my buddy has a d905 with less than 200 hrs on it for 500$... Can the d905 be swapped on there without any major modifications??
