So I'm hung up on a fuel leak and realized there is an O ring missing from where the threaded lines attach to the injector rail . The m44 has 2 hard line ports on the rail, and the only pic I get on real oem must be m42.
Who's pulled these for cooling r/r? Do both get lines get orings?
I happened to find a tiny o ring sitting low on the side of the engine, in one of the cast/rib nooks.... I'm wondering if it's one of them?
Help w M44 fuel rail/ hard line 
Threaded Mode