Thanks for the tip. What vendor does that phone number belong to?
The reason this backhoe needs an overhaul is because it had water in the cylinders for a few years, which ruined the compression. How the water got in was a mystery at first because it has a rain cap on the pipe. But then I noticed that the exhaust manifold fasteners are not tight. My new suspicion is that water pooled on top of the manifold and entered through the loosely attached joint between it and the head. Fortunately, the bottom end looks very good. Although the water leaked past the rings into the crank case, not enough water accumulated to threaten the crankshaft.