McCoy Cascade Railroad Locomotive Help

Joe, about 5/8 diameter

Thanks.  I will check with some of the parts guys.

Steve,

I have a friend who is taking a metal working practical and can turn some wheels for me.  I just want t confirm, the 5/8 inch diameter is to the outside of the wheel as indicated in this picture, correct?

Thanks.

Joe

That's it Joe. The 5/8 is tire diameter and did not include the flange.

Steve

2 of the 4 drive wheels were deteriorated.  I picked up some replacements.   The hole for the axle was too small so I just drilled it out a little larger and was able to press on the wheels to the axle, but the screw hole for the side rod shoulder screw is actually  so the shoulder screw does not grip.  I am trying to think of options to fix this problem and would appreciate if anyone has experience with this if they can chime in.

 - find shoulder screws that have a larger diameter screw

- wrap the screw thread with plumber's tape

- fill the hole with solder and then screw the shoulder screw back in

- fill the hole with jb weld an retap the hole

Any suggestions?

The solder or JB and new threads seems best. Solder being stronger, especially on a tiny application.

A larger screw can be used later if that ever fails.

Also, fyi, helicoil thread repair coils come in #2 and larger so that may be another option (?) And it would be "doing it right" vs an oversized screw.(though I usually just drill &tap for oversize)

The solder or JB and new threads seems best. Solder being stronger, especially on a tiny application.

A larger screw can then still be used later if that ever fails.

Also, fyi, helicoil thread repair coils come in #2 and larger so that may be another option (?) And it would be "doing it right" vs an oversized screw.(though I usually just drill &tap for oversize)

If you solder support in a 90 degree jig or the wheel may cant when the solder cools.

Check to see if the American Flyer pilot wheels will work (Henning's can supply). About the right diameter on the wheel tread. Might have been what McCoy used.

For those of you that need McCoy drivers, We can modify the MEW Lionel set  for you. The axle hole is reamed larger .185, and I think the rod holes are 6:32.   AW-1003 is the part number for the 5/8" wheels.   Harry  

Thanks for all the suggestions.

I tried plumber's tape and that did not work.

Searched for larger shoulder screws and came up short.

Since I do not have a helicoil repair kit already, it looks like it will be more cost effective to get another set of wheels from Harry with the correct hole size.

So now I am working on my next problem.  I thought I had all the parts needed to rebuild this loco, but recently came to find out that I am missing this part outlined in yellow.

I think it might be called the steam chest.

So,

1 - are replacement parts available somewhere for this?

2 - if not, does anyone have a spare one available for sale?

3 - if not does anyone have one I might be able to borrow to get the dimensions so I can 3D print it?