GWR Bird class - running trials
With the major work on the loco complete, the Bird has temporarily borrowed City of Truro's tender for some running trials:
Initial results are quite encouraging from a haulage and general smooth-running point of view, but one thing I'm struggling with is the outside cranks tending to go out of quarter if I handle the model. They were a very loose fit on the extended axles and the usual Loctite retainer I've used in the past quite successfully doesn't seem to be creating a firm enough bond. I remember the cranks on the City being quite a tight fit on their threads and almost not needing to be retained - they certainly took a bit of brute force to shift - but that's not the case with the Bird. The City's cranks were of the usual type where you have to solder a retaining washer on, whereas these ones are the sort where a bushed washer has to be screwed on, and I must say I prefer the former.
I'd be grateful for any suggestions as to how I can get the cranks to stay in quarter - araldite, perhaps? I presume soldering is out of the question due to the different alloys but perhaps I'm wrong.
- 8
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