flyvulcan
Well-Known Member
We are installing a Rotax 912ULS into our Lightning Bug and we note that in the Rotax installation manual that between the fuel pump and the carbies is a fuel manifold that splits the single fuel line into two which go to the individual carbies. This manifold also has a fitting for a fuel pressure sensor, as well as a return line to the tank with a restrictor in it (items 13-25 in the attached wrongly oriented diagram).
My question is whether this component (including fuel return line) is a requirement to be fitted or is it optional?
The reason that I ask is that we have seen some 912 installations that do not appear to include this fitting in their fuel systems. We wonder whether these installations are incorrect or whether the use of this component is optional. If so, under what conditions should it be used, or not used?
Of course I will be consulting the Rotax agents, but I'd appreciate some feedback from Rotax 912 experienced forumites.
Thanks,
Dave
My question is whether this component (including fuel return line) is a requirement to be fitted or is it optional?
The reason that I ask is that we have seen some 912 installations that do not appear to include this fitting in their fuel systems. We wonder whether these installations are incorrect or whether the use of this component is optional. If so, under what conditions should it be used, or not used?
Of course I will be consulting the Rotax agents, but I'd appreciate some feedback from Rotax 912 experienced forumites.
Thanks,
Dave
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