You have to have the steam battery and the key (jump on the robot crab that is in front of the Living Quarters).
Adjust the path of the steam so that it loses pressure, or -5 (10 on the input side, 5 on the output side).
in the trash
click use by the sullys place. I havent figured out the combination let. Someone let me know of they have.
you dont .
you have to find the robot crab filled with water (near the door on top of sullys saloon) and use sprocket (in zacks garage next to sullys saloon) to drop it on the hatch and cool it down
its in the museum on mainstreet of steamworks island :)
in front of sullys shop
It's Steamworks Island #14th Island
(The solution is at the related question "How do you beat Steamworks Island")
the crab on steamworks island is next to the living quarters
You go to Steamworks and head to the museum and there is the Deogen
After you get in Sully's shop,just ring the little bell on the left of the robot:)
steamworks island