I recently bought an old Minneapolis Moline tractor. The owner said he thought it was a 1949 ZA. The tags on the tractor are in bad shape. One is only half a tag. The bottom is gone. after many hours with a acid water solution and scotch bright I was able to make out the model as a 206 b. The serial is very hard to read but looks like 0181(4)064. the (4) is questionable though. In the Steiner book this serial is not listed. But the tractor looks just like the one that a guy named Zack put on youtube http://www.youtube.com/watch?v=uEfGV58LWxo
So the big question is is there any other way to find out just what I have, like any stamps on the chassis? When I got this tractor the engine was stuck. The exhaust pipe was missing and the last exhaust valve was open. I finally had to tear the engine down to get to the piston. after weeks of trying to free the stuck piston I went back to the acid again. This freed up the piston. The acid I used is for cleaning brick after the mortar has dried. If anyone decides to try this be very careful and only use in a well ventilated area with personal protective equipment!.
I had tried all the other home remedies but nothing freed this piston. 3 hours with the acid solution and the piston came right out after 3 taps with a brass rod and 3 pound mallet. funny thing was I found no rust in the cylinder and it cleaned up nicely with no defects. Even the piston and rings look great. Go figure.
So far my biggest hard to locate item is the distributor. This one is shot. The cap was cracked. Allowing water to enter. The shaft and points cam is trashed. No lobes left on the shaft at all. So I have to find one. Both rear fenders are missing. The hood is a 3 out of 10 but with lots of work I think I can bring it back together. The rear rims are great but the front rims are toast. The gas tank has rust in it and the outside is pitted. Does not appear to be any holes in it and no dents. The transmission and clutch seems to operate smoothly. Tried by turning the engine and testing. Only one of the 3 gauges is bad.
As soon as I can I will take pictures and show it off. Lots of work ahead. I have always wanted to restore an old tractor.
Thanks for reading.