MTH Challenger #3895 PS1 Smoke Upgrade Problem

I should have said the funnel was too narrow to span the challenger smoke ports.'

Mike

You can grind them down, or you fill the area around with epoxy to get a better surface area.  As far as fit, what does chassis look like?  As Long as smoke fan solder points do not touch chassis you may have proper clearance.  IF the issue is seeing motor, slip heat shrink wrap around motor to color it black.  G

Mr. Dremel with some carbide bits is your friend.   You could probably taper the inside edges of the boiler shell openings to slide the funnel in.

does that ps1 smoke unit have 2 ports?

No

Gunner what to you think about cutting the funnel in half then remolding the cut area using epoxy. If I do this I'll definitely have to grind the inside of smoke ports down to gain vertical room.

Mike

"Like my daddy always said cut twice and measure once!" Oops! He always said I never listened!

You could do that.  I've build several out of brass sheet and brass tubing

It is probably better to figure out how you are going to lock the smoke unit in place before you start cutting an modifying the smoke funnel you just bought.  If the one you bought doesn't work, buy one that does, or make one.   The fact that is too large is easier to get to work then one that is too small.  After rereading how can the funnel be too wide to span the stack bosses.  If it where too narrow that would not work.  How you fix the smoke unit in place comes first, then size the funnel or modify the shell to seal the funnel.   G