I thought I would post this fix - my pressure converters went bad again after 7 years / 80,000km. When doing the diagnosis, i realized all my vacuum lines had hardened (again, after 7 years). When pulling off the old vacuum lines, I broke a barb off the vacuum reservoir. They are now over $100 to replace. So - dig into my parts bin and found a brass barb union that I tapped some threads into, drilled out the old barb and tapped mating threads into, and reassembled using some epoxy. Nice solid repair, back on the road again with full boost.





I also tried upgrading the vacuum lines - got some high temperature fluorosilicone tubing and high temperature fibreglass jacket material for the replacement this time. Hoping that this tubing lasts longer than the last.