- Oct 4, 2013
Lipped liners can still ‘drop’ a little, especially from new, if the alloy barrel material crushes or sinks.Richard, have the liners always been the same? When the head gasket blew on my 2013 CR I was told that the liners had dropped in the bores causing a gap, and that they were replacing with Nikasil liners (which lead me to believe that I didn't have these previously). The Norton workshop manual that I got with the bike showed the liners with a lip at the top, so I didn't understand how they could drop anyway. Does this make sense?