I've got a 3 speed Sturmey Archer SRF3 hub, which I recently overhauled after sounding pretty grotty. I replaced a pawl spring on the gear ring assembly, and cleaned and relubricated the whole thing.
It's running very smoothly now, but occasionally the freewheel won't engage immediately after coasting. The pedals spin for a couple of rotations before the freewheel reengages. I can't see any suggestions about this issue in the service manual. I've experienced it most commonly, but not exclusively, shifting down between 3rd and 2nd gear. It's fine once it's engaged and pedalling - doesn't slip.
Has anyone got any suggestions of where should I be looking in the hub to fix this?