A few months ago, I bought a non running G from the grandson of what used to be the local dealer. When I got it running, I discovered that when started it rumbled for a few seconds while it was developing oil pressure. Since I suspected main bearings, a couple days ago I dropped the pan and found out that I could pry the flywheel up a very noticeable amount. So, I pulled rear bearing: top is 10A 12420 and has what I assume is date: 69. Bottom is a lot harder to read but is 10A 12425, followed by a number that I read as "30". I suspect that they are not a matched pair. I pulled the number 4 rod bearing and it is 10A9254 and dated 11- 72. Crank looks good, bearings look good although bottom main shows some wear. Do those numbers make any sense, and what size main bearings do I order?
I pulled up some of the online AGCO parts books and those don't match any numbers that I could find, and I didn't spot a way to match part numbers.
I pulled up some of the online AGCO parts books and those don't match any numbers that I could find, and I didn't spot a way to match part numbers.