I wonder if that might be normal-ish compression of the rubber shocks inside the Vetus. Frankly doesn't sound like a big deal and I should think the Nylocs would be ok without Loctite. The problem ones I've seen (and had) were really loose - like rattling around. Will be interesting to see how they are when next you inspect them.
---In amelyachtowners@..., <divanz620@...> wrote :
They were not "loose" but I could take up about a sixth of a turn on each.
Nyloc nuts, washer, no Loctite...I might do that.
Bound for Vanuatu