27-08-2018, 08:11 AM
(This post was last modified: 27-08-2018, 08:20 AM by Ruairidh Dunford.)
I am interested to know what the effect on this type of ring would be if the gap was too small or too large - the picture suggests, to my mind, that the ring has opened up beyond circular and the section opposite the gap is not making contact with the bore?