you go to the top left hand corner of the room and click on the wall where you will have to solve a puzzle, where you have to get steam to move safely from one corner to the other. once you have completed all three levels then you can go outside and collect the mech crank.
he is at the steamwork
It is under two stacks of hay by a farmer. Slide the stacks apart by going in between them. There should be a door. Open it with the key you received earlier.
go onto youtube and search video walkthrough for steamworks
at the bottom duhhh
0516
I dont know you FOOL!
its in the museum on mainstreet of steamworks island :)
The combination for the painting in Ziggs' room is 0516
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
There are no windows that open inward on Steamworks Island. There is a skylight in the City Hall that can be opened with the Multi-Tool. You go out the hatch above Zack's room in the living quarters, to reach the Mech Crank on the vines.