If you have no luck getting it out you might try a local machine shop. Many have a "EDM" machine now that can electronically burn out the screw without damaging the threads.
Roger
One trick for removing screws or bolts that are corroded is to hit them with a hammer before trying to remove them. This will loosen the corrosion. However, on a small screw like a side rod screw, you must use caution not to hit the screw too hard or you will break it.
If the screw is already broken, use a small drift punch to hit the screw, and then use a Dremel cut off disc to put a small slot in it. You need a very narrow slot.
Bruce Baker
If there is any of the old screw still sticking up above the wheel surface you may be able to cut a small groove in it and use a small screw driver. A dremmel tool with cut off wheel has saved me a couple times.
George
Probably a lot of people out there have had THIS experience. You try to remove the side-rod screw on an old Lionel engine and the screw head breaks off. On larger screws or bolts, you can drill down through the remnant shaft and insert a reverse-thread removal tool, which then can be hand-turned to remove the broken screw shaft without damaging the female threads. Does anyone know of a similar tool SMALL enough to work with the screw sizes applicable to Lionel steamers, motorized units, etc.?
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