Announced today that all 12 bearings on 3801 will be replaced as a precaution so that the loco can remain in service for a long period time. Seems reasonable to me. While they are at it why not source a set for 3830 and use 3801's German boiler on 3830. Then repair 3830's boiler as a spare.
The actual report stated 20 bearings, presumably including the tender.
In January they remarked on how smoothly the chassis rolled (on the old bearings).
Has there been any suggestion that 3830 needs new bearings?
It was restored at least nine years later than 3801, so must have run less distance.
I'm sure there are plenty of comments in this thread on the problems with the all welded boiler.
However, I understand that the firebox is too deep below the boiler to fit on a 38 class frame.
This is not the problem of the Germans, since it was built to drawings agreed by the owners of 3801.
So they don't have to "fix" it.
It would probably be cheaper to repair 3830s boiler rather than modify the German boiler to fit.
That certainly was the case with 3801's old boiler.
But if 3830's bearings are OK, why not fit 3801's boiler to it and run it while we are waiting for the new bearings.
Then we could fit 3801 with 3830's repaired boiler.