2002sliverado
Member
Quite some time ago, I put out a question on going through our 3020 gasoline powered tractor. Well, last summer it was torn into with mostly pleasant surprises. The last engine overhaul had occurred in the first half of the 1970's, with a new tach installed. This tach broke about 8 years ago and it had something on the order of 6700 hours. The horrible missing was caused by a broken rocker arm shaft. We had the head milled with new valves installed. The cylinders still had some cross hatch showing, so we didn't tear any further into the engine. The hydraulic pump was in touch shape, so we obtained a remanufactured main hydraulic pump. It ran good after that, but over the winter, the head gasket leaked some coolant externally when the temperatures dropped below -20 degrees. So, off the head came again and a new head gasket was installed. Hopefully this one will hold. On my long drive, after the rear end had warmed up, every so often the front wheels would make a full turn to the right. As I drove it down the road, I noticed I was gradually turning the wheel to the right, all the while steering straight forward and having to make small corrections as I went along. Am I correct the most probable culprit is the steering control valve body is in need of rebuild, or is this something down in the steering motor causing this? I was only around one other Deere tractor which did this, but I only operated it for a half hour and couldn't make any firm observations as to what all was going on.