Thanks for the update Mike, it sounds as if the process is going well. Now we just need to learn what the compression is like, and whether it is going to be or become satisfactory.
Since you can't mow in the US winter, running it until it is warm a few times may serve to bake the loctite. When you are able to do some mowing, try to mow early and often (i.e, keep the load on the engine light by mowing short grass) for the first hour while checking the compression pressure occasionally. Then begin running it at full load, but keep checking the compression pressure until it stabilises at a satisfactory level, or it becomes clear that the compression pressure is low or falling. If the engine has run a couple of hours, some of it at full load, and the valve guide hasn't moved but compression is poor, you will have to dismantle the engine and lap the valves. If the valve guide moves, whether or not the compression is good, the repair has failed and you need a replacement cylinder block or engine.
