Tezza42 wrote:
I struggled with this so I can sympathise. I fitted the O ring into the groove and leaving a "loop". Make sure the O ring is not twisted.Then I "worked" as deep as possible into the groove with a smooth part of a pick. A small screwdriver would do.Eventually the "loop" gets smaller until it can be "sprung" into the groove.Very frustrating but it can be done.Your initial idea looks better but the tool (sharpie cap) would need to be a fairly close fit in the bore. Try an alternative perhaps?Sorry for all the quotes and the vague description but it's hard to describe and I'm not taking out again to video it!EDIT:To clarify, I had the "loop" projecting into the bore.
It's not my idea, it's from here. It is not clear to me whether the cap should go all the way to the bottom or only to the groove. And I can't see anything anyways, so I'd be working blind. If the cap is thinner, it won't hold enough of the o-ring.
I found that, if the loop goes below the groove, it's game over - I can't lift it any more without disturbing the whole o-ring. If it's above the groove, like on picture 1, I might still have a chance.