I've often wondered if the technique of 'beating' the seats in isn't some of the problem with them coming loose later. If I ever decide that inserts are necessary I think I'd try a dry ice chill and try for a shrink fit rather than a press fit. IIRC, for the same interference, a shrink fit has 3-4 times the holding power of a press fit.


"We live in a time when intelligent people are being silenced so that stupid people won't be offended".