30PSI speaks the truth.
Mine started clicking on the recent bank holiday friday.
* took it off - found it an arse to get to, could probably do it a bit easier now I have located the two bolts.
* took it apart (dont take the c clip of the main shaft like i did
)
* put it back together after cleaning with WD40 and then luubing with a tiny amount of copper grease.
* works fine now
cost of new starter saved = £120 or if you go to Halfords £283!