I didn't write down the date code, but the serial number of the engine block and the tag on the seat support is the same. 188342. Took both crank and head to machine shop. The crank was within the tolerances and not egged out. They just polished it. Valves, guides and springs were all useable. Just grind valves and seats and deck the surface. Overall, didn't have to spend too much on these. Truth be told, if they would have let me done this job in the first place instead of trying to do it themselves, finding out that they were in over their head and then give me a call to bail them out, we probably wouldn't have to had to replace the liners. But they improperly honed them and now they are uneven and way out of tolerance.
I have done some more research since my last post and it appears that the 113 blocks had the smaller bore in the block compared to the 123. In other words, the outside of the liner is smaller on the 113 block compared to the 123. I may still have to pull a liner to measure just to be sure. The most popular liners available are 3 1/8" overbore. I only found one place that had the standard 3" liners and they were twice as much as the 3 1/8".
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Today's Featured Article - Identifying Tractor Noises - by Curtis Von Fange. Listening To Your Tractor : Part 3 - In this series we are continuing to learn the fine art of listening to our tractor in hopes of keeping it running longer. One particularly important facet is to hear and identify the particular noises that our
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