This is getting a bit, well, nit picking but, instead of writing by hand on each and every oil pump, how about writing once on the box you put them all in?
As far as the warrantee aspect â€¦.. are you saying that this is the only part that requires tracking? 'cause it is the only part with a hand written date on it! the pump on my bike is still going strong after 52 years, bugger all else is, but nothing else is tracked by date.
It is just as well that the British Motorcycle industry didn't produce at the rate of the Japanese, can you imagine how many people would have to be employed to hand write the date on the 500,000 plus oil pumps of the Honda 4 alone (if it has one!)?!!!!