Ron,
I have not tried these instructions, but had them tucked away just in case. I'm not sure, but I think they first came from Jim Flynn.
Here's the basic steps for dis-assembly. It's from the North Raleigh Model RR club (an N scale group). It's part of their instructions for converting the Mike to DCC. I've used them to replace a gear in one of my Mikes, and for doing a GHQ Southern conversion on another one.
1) With a small flat-bladed screwdriver, spread the cylinders away from the frame. They do not need to be and should not be removed. Ease them apart until the smokebox shell can be wiggled and pulled forward until it is free. Set the smokebox shell aside, and push the cylinders back together again.
2) Remove the cab by spreading slightly at the sides and lifting up.
3) Remove the rear step assembly by sliding to the rear.
4) Lift the boiler shell up and off. Remove the boiler weight casting.
5) Remove the walkways and firebox sides; the small flat-bladed
screwdriver may help here.
