I have a 12mm p-pump currently and would like it to be 13mm for more fuel obviously. Now I found a site that I can purchase 13 mm plungers/barrels. Is it possible for me to do the swap? What all do I need? and is this even doable? :thankyou2:
It is possible if you have the tools to disassemble the pump and a test stand to calibrate it afterwards. Otherwise it is a job best left to a pump shop.