Quote Originally Posted by frankwrench View Post
Right, during some inspections yesterday I was able to determine that the leak(s), as far as I can tell, are between the aluminum return washers and the return pipe *and* between the return pipe and the nut holding it onto the injector.

My current hypothesis is that my fuel return pipe is bent and is not sitting flush on the injector return gaskets. This is corroborated by the difficulty I had in prying the damned thing off when I was inspecting the injectors this weekend.


I'm wondering if I can apply a little bit of sealant around the nuts or if I should just try to source a new fuel return pipe :-/


This hypothesis was incorrect. After cleaning things up and re-installing the fuel return pipe, tightening it along the way, I was able to identify fuel pushing out between the fuel return pipe and the nut which holds the pipe onto the injector assembly.

Upon further inspection it looks like the nuts may have been over-tightened in the past, leading to some scoring on the fuel return pipe's nut-portion.


I'm contemplating fitting crush or silicon washers between the nut and the fuel return pipe to enforce a stronger seal. Thoughts?