I was about to declare victory. 622’s chassis was finally rolling reasonably smoothly, or at least more smoothly than #10, and I was giving it a fast run on the rolling road.
Suddenly, the left rear crankpin screw unwound and the connecting rod flew off. The chassis dropped off the rollers, and when I went to put it back together again, I found that the rear driver has lost its quarter!
This is very surprising because it means the epoxy holding the wheelset together failed.
I guess I will call it quits for the night. It’s days like this that make me think that perhaps modelling steam engines is just not for me.
Pembroke:87 
Aargh!
Of all the things to happen, how absolutely hair tearingly, chest thumpingly annoying.
RTR does have some advantages, I must admit but the pride, joy and sheer pleasure of creating your own working model cannot come out of a box!
Best walk away for a while until that creative urge returns in force.
Cheers, John.
Thanks John. Also best to walk away before the urge to throw the whole project against the wall in a fit of rage becomes unbearable!
Oh no! Keep going, though. I’m sure you can get that fixed. Your project is the inspiration for me while I work on getting to a P48 version of my own steam engines.
Thanks JD. I reckon I’ll keep going, but this is definitely one of those low points in the project.
I hope things look better in the morning Rene.
Thanks Mark, I think I have a plan…
Could this in any way be related to your problems with the connecting rod holes?
Craig
It might explain why I was getting some binding. That is, wheels that I thought were solidly quartered were not in fact quartered.