18-07-2015, 03:53 PM
Use a pick to scrape the worst of the rust out of the corners, then douse it in plusgas or similar and use a punch in the holes to knock the circlip around in both directions to free it up, as in knocking towards the other hole in the circlip if that makes sense. Means it's a piece of cake to then get out with the circlip pliers.