Replacing Hornby worm

Does anyone know how to get a nylon worm off a Hornby 0-4-0 so that I can replace it with a new one? Will it just pull off by hand, or is it a bit more complex?

Reply to
Gerald H
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I don't know the loco in question, but this works for most motors/shafts:

Cut a solt in a piece of metal so that the motor shaft can be slid into the slot; motor below the metal, worm above. Grip/support the metal over a vice (or similar) such that the motor is **not** gripped. Use a hammer (and optionally a punch) to tap the motor shaft downwards, causing the worm to slide up the shaft. Be ready to catch the motor if/when it slides free.

The method means that the chances of bending the motor shaft, or buggering the motor bearings are much reduced.

Alternatively, as its plastic and if you plan to throw the worm away, then a hot soldering iron will melt the worm quickly so it can be removed.

- Nigel

Reply to
Nigel Cliffe

In line with Nigel's idea of melting the worm ...

Grip the drive shaft between the motor and the worm with a pair of pointed nose pliers to also act as heat sink.

Get a low wattage soldering iron with a fine tip and place on worm end of shaft and hold until worm loosens and slide off.

Try to clean off all the glue from the shaft prior to it cooling.

Reply to
Dragon Heart

"Gerald H" wrote

Just pull.

John.

Reply to
John Turner

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