Hi Guy's,anybody that's tore down Perkins engine's ever see or hear of this,pulled the piston's and rods out of a AD3.152 diesel and the piston and ring's that was damaged was in front cylinder!But the number stamped on rod,rod cap and piston was number two,so don't remember if number 3 was in right place or not,I think it was,with number 1 in number 2 place!Anyone ever see this before,Oh by the way this Tractor was bought new by my father,it had never been touched by anyone other than me,not even by the dealer where it was bought from in late 1980 or early 1981! Just wondering! Thank's,these are tough little tractor's!