System Case Lock Tumbler comes out

[Rcgreaves]

So this article sort of addresses my challenge, but I don't see a tang ( orange drink, went to Moon), or a grub screw hole or something that will keep this thing from working its way out at inopportune times.

PO filed some tangs off, perhaps the one that holds it was ground off? I can do pics after a morning ride. Yee Haa!

[Laitch]

Which article would that be, Rc? This one or this one? There are no tumblers. There is a lock cylinder and core with wafers protruding from it. The end wafer indicated by the arrow is the one that anchors the cylinder into the plastic housing. Sometimes, its spring loses tension and/or its detent fails to keep it in position. The other wafers interact with the key allowing the lock core to turn within the cylinder.

I haven't had success replacing the spring acting on that wafer if that wafer has loosened until the whole cylinder gets pulled from, or drops out of, the housing, but I still believe it's possible to repair it.

[Martin]

I had the locking tangs repaired about 10 years ago by our local really good locksmith/gunsmith I had four that were dodgy. There are good locksmiths and the little shopping mall kiosk ones who can't do anything too complicated. Three have stayed repaired but one failed again a few years ago. I have some spare tumblers and now that you've remaindered me I should maybe possibly look at replacing the faulty one.
Regards Martin.

[Rcgreaves]

Tangs and wafers - check.  Thanks.  Clearly my anchor tang was ground off by a PO. 

Which article would that be, Rc? This one or this one? There are no tumblers. There is a lock cylinder and core with wafers protruding from it. The end wafer indicated by the arrow is the one that anchors the cylinder into the plastic housing. Sometimes, its spring loses tension and/or its detent fails to keep it in position. The other wafers interact with the key allowing the lock core to turn within the cylinder.

I haven't had success replacing the spring acting on that wafer if that wafer has loosened until the whole cylinder gets pulled from, or drops out of, the housing, but I still believe it's possible to repair it.