Part 9: Boring the crank pin holes—May 2001

This update contains a couple of photos showing the crank pin holes being bored on a horizontal boring machine at Perry Engineering Division of Air Ride Technology. The second set was completed on Tuesday 1 May, and all four should be complete by the end of the week. During setting up for the quartering process (done by co-ordinate measurement on the machines' digital readout system) the two sets of wheels done so far were found to have a difference in quartering angle representing about 1mm at the crank pin. This would not have been conducive to good bearing life.