Warped white metal cast tender frame

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New Member
I just acquired an unbuilt Bowser T-1 Duplex locomotive kit from eBay. All the parts look to be complete, but there is a problem with the tender frame - it has a significant bow to it. Does anyone have any tips on straightening a white metal casting without breaking it? Or am I just better off fabricating a new frame?


Active Member
I've been told that GENTLE taps with a ball peen hammer on top of an anvil will work. Use the ball end and tap along the bow working along the bow a little at a time. Don't get in a hurry or you may crack the casting. Good luck.



Well-Known Member
I have no experience in this, but I would use a press, and I would get the frame fairly hot before pressing it. Not smoking hot, not glowing hot, but oven 300 deg hot. Then, use a wooden block to press it back into true on a hard planar surface using upper body weight or a hydraulic lift/press. If it busts, use epoxy to get it back together. Let it cure for a minimum of 24 full hours before lifting it and trying to use it for assembly.


Well-Known Member
Staff member
Can you put up a pic or 2, so we can see what we're dealing with? Might be simple, might not.


Railroad Photographer
Might be an idea to check with Bowser to see if they might have a frame they could sell you. I can't see anything working to straighten out a cast white metal frame, but who knows? Good luck and please keep us informed.

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