I've just replaced the turbo on my S2 and have noticed some severe "twisting scratch marks" on the shaft of the actuator, where it looks like someone has turned the shaft with a pair of mole grips or pliers. Now I'm sure I read somewhere that doing that will knacker the actuator, is that right? Car seems to boost fine, would it be worth replacing or not?

 

probably somebody has used pliers/vise grips to hold it during adjustment in the past & the threads have been tight. if its boosting ok. keep it lit

 

I would think it could damage it, maybe split the diaphram or somthing...

But as Niall.b says if it works dont try and fix it.

 

Yes, this risks damaging the diaghragm, thing is, when it finally does go, your likely to be informed of it by a conrod popping out the front of your engine block as the boost hits excessive levels.. lol

 

unfortunately probably not that subtle.. usually lazy bastards who can't be arsed to disconnect the turnbuckle from the wastegate to adjust it, and just twist the rod instead