[1.2gees]

Mine were popped off on my turbo also, but I assumed it was because they were out of adjustment. Indeed if you just pop them on (re-using the old ones) they'll come off after you use power locks a few times. If you align everything correctly, the new ones should last longer. I'm on the original ones in my 191k mile turbo (86). They haven't come off in the last 10k miles or so, since I re-adjusted the spacing.
Ahmet