Fuel pump O/H
Found this information last week when a friend with a 3 was worried about his 15+year old fuel pump, sorry, your looking at $400.00 at Spruce.
Basic Fuel Pump System
Sport Aviation - 8/87
By Tony Bingelis
Not many moons ago, the AC folks decided to cancel production of their fuel pump repair kits because too many fuel pumps were being improperly repaired. They figured that the cost difference between the repair of an old pump and the installment of a new one was not worth the problems being encountered. So, forget about overhauling your old AC type engine driven fuel pump.
Repair kits are no longer available.