Join Date: Aug 2011
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Looks like the chick is installing aftermarket injectors. Aftermarket injectors come with aftermarket rubber seals. The box she holds says RC Injectors, although these don't look like RC Injectors to me. Pretending they are, for proper installation it is advised to remove fuel rail spacers to ensure adequate seal formation between injectors and the rubber seal. It's important to note that without fuel rail spacers there is nothing stopping fuel rail from moving to far in. Installer must take care not to force the fuel rail too far in - damaging rubber seal as a result. Custom spacers (washers) may be installed to allow fuel rail nuts to be properly torqued. Without custom spacers, one must apply thread lock or fuel rail nuts will eventually come out. Although RC injectors may look like they need to go in further, they actually don't. Unlike OEM injectors, RC injectors seat on top of the rubber seal, not go through it. RC rubber seals will begin to "deflate" from RC injectors pressing against them. That is an indicator that fuel rail bolts are tight.
Back to the subject. If rubber seals are marginally thinner, you need to confirm that injector is not moving following fuel rail installation. Otherwise, you may be running a risk of catching a fire.
Last edited by Built_not_bought; 01-30-2018 at 06:04 PM.