Helicoil problem

[Peter Naulls]

Can anyone advise how to deal with a protruding helicoil? Copious amounts of oil started leaking from the camshaft bush retaining bolt and today I found out why. It looks as thought the helicoil insert has wound itself out by a turn or so, though it doesn't seem to be loose. 

Should I dremel the end of the insert? I'm a bit concerned about getting swarf everywhere and access is pretty limited. Also wondering if it will do the same again when I reassemble everything. I don't think there is enough to get hold of and remove it.