The Unit with the front axle and worm wheel removed.
The Walker diesel Unit No.2 is now in the workshop after the worm drive in the gearbox was completely stripped. I had already ordered a new gearbox kit with the intention of replacing all of it. However, try as I might, I can't remove the steel worm drive from the motor shaft. It is undamaged and there is no wear so I might just as well leave it where it is. On sliding the new worm wheel on to the leading axle and trying it in the gearbox, the mesh seems perfect with no tightness or binding. I can't understand why the original one was stripped. To be on the safe side I will assemble the new gearbox and see how it goes.
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