Missing 3rd gear in machine room.

[angelsonfire]

Okay, something is just not right. I went to a saved game, starting in the storage room. Went through the whole routine of finding the rods, encountering the monsters, etc. Went back to the machine room, turned on the steam, put in the rods, and then went down to the gear room , put the coal in the stove, but those two gears were already in place and the third is still not to be found. HELP!!!!!