When the water pump was bought the engine had been left with the inlet manifold open to the rain and no spark plugs in. this had led to corrosion in the cylinder bores.
The Ford E93A Sidevalve engine on initial investigation with Oil in the bores trying to free it.

This shows the sidevalve layout. The valves were very tight and required working to get them moving (Using a hammer at times!).

The pistons were finally removed by pushing them out from the top (requiring careful hammering!)

Once the engine had been cleaned up the bearing and bores looked ok so it was reassembled. The next picture shows the crankshaft being reinstalled. (This engine has cast in bearings rather than shells)

Here the engine can be seen reassembled and painted. (The head has yet to be put on)

As with some old engines this one overheats when working hard!