I know the service manual has a figure with the "replace every disassembly" symbol, but these parts seam to be the hardest things to find. I've been trying to get them for two weeks and, frankly, I'm tired of waiting. These parts are holding up the re-assembly and installation of my engine. I tried the aftermarket stores, and the Nissan dealer has them on back orderwith no idea of availability. Has anyone re-used the fuel injector seals (not the o-rings) in the fuel rail, or the isolator pads under the fuel rail bolts? If so, was there any fuel leakage?