...So, today I disassembled the old pump just for giggles. Note
that there is a number, 829, stamped into the frame:
Looks like the older pump was manufactured on the 82 day of
1989.
My old pump is still going strong with no adverse operations. It
is a 1987 dated pump (#1427). The only teething problems I had in the
beginning were the VEP pressure switches which caused me to burn out a
gear pump relay (I replaced both relays). I did send the pump to
Oildyne in the first year of flight for their valve upgrades.
Gary Edwards
LNC2 N21SN
Medford, Oregon