Reply to "HELP! Lionel 728 not running smoothly"

jth877OGR Forum Member

Yup. Tap axle out straight as you can through the old bearings. The worm gear will come right off in the frame. Might as well order a new worm gear. When you press the new bearings on they don't get seated all the way home. Leave about 3/32" of it sticking out of the frame. This will limit the side to side motion of the wheel/axle assembly . The new bearings will need to be drilled/reamed to the right diameter or the axles will fit way too tight. Pressing the bearings closes their inner diameter ever so slightly. A good 3/32" spacer is a large washer of that thickness. Place washer over bearing after you start pushing it into the hole. Seat till it stops and you have perfect spacing .

2/18/1912:10 PM

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