The argument is that for pre 2004 cars where the nipple replaces the oiler pipe then the hole drilled through the kingpin is very small so very little grease if any gets through it and it comes out above the stub axle so does nothing. Read Gomog for the various arguments.
http://www.gomog.com/allmorgan/remotegreasing.htmlExactly. If they've started fitting top nipples again then it implies that the diameter and exit location of the king pin drilling has been changed. Can anyone confirm?
Yes on latest cars there is a circumferal groove machined into kingpin, below static height of stub axle, with cross drillings at base of groove approx 2-3mm if memory serves. These intercept the vertical hole drilled from top of kingpin to allow passage of grease.
