I am converting an O360 that had a horizontal pressure carb to a downdraft sump to use in my RV4. I purchased a used sump for this conversion. This sump has connection tubes that taper from 1 ?? to 1 ?? where they enter the sump. I have since been told that this sump was for an O320 since the tubes tapered. An old Lycoming parts manual for O360s list this sump (#71871) as being used on several different 180 hp engines. But the newer parts manual list a different number (#78915) for 180 hp. Has anyone else run into this?
Thanks in advance,
Cameron Smith
Thanks in advance,
Cameron Smith