The Power of Steam – Part 4, by A.Y.
For problems on the engine itself, visual inspections are again the best way to look for problems. Loose bolts, loose or worn bearings, signs of overheating, and clanking and knocking sounds can attest to problems. Signs of overheated metal on the engine can include scarring, discoloration, scraping sounds, and emitting lots of heat from a bearing while in operation. Overheating on the engine itself can usually be attributed to not enough lubrication, so it must be determined why oil and grease are not getting to the affected part. Some engines have mechanical and hydrostatic lubricators that drive oil to moving …