I am refurbishing the entire fuel system with new hoses. I pulled the fuel rail and the EFI's to facilitate the work. All new hoses are installed with cleaned ferrules.
EFI's were all soaked, cleaned and pressure spray tested. Three pintel caps had to be replaced. Warming them up with a hair dryer is necessary.

Q: When the fuel rail came off the pintel pins were all protruding a bit. (they are sharp) Then at one point they all retracted. On advice I connected each EFI to a 9V battery. I have spark, I can hear a click but the pin does not extend or retract, close/open.

Am I good or is there something else I need to check/do?

Second: Finally got the second brake pad broke free from the disc on the spare IRS. Both calipers are removed with brake lines, Shocks are gone. Drive shafts are unbolted from the differential. Had four (4) shims on each. Diff is removed from the cage. Wishbone arms are off. Ready for complete rebuild including new Diff fluid after thorough cleaning and new paint. Once all is ready will Drop and Swap refurbished IRS with one in car and then do the same to the swapped IRS cage for installation in my friends car.
Entire process seems pretty straight forward and uncomplicated. Am I missing anything or need to be aware of something in particular? Thx.

PS...When the cage comes out the car gets new over the cage fuel line hoses as well.