Hey Kevin: It sounds like someone has switched the tanks. I believe the 8
gallon tanks were the ternplate tanks. These were used to replace the early
tanks and ended up with an AD which required inspection every 25 hours (could
be
owner completed) and were mostly replaced by the 9 gallon aluminum tanks. The
ternplate material is lighter than the stainless steel, does not respond to
a magnet, and was used for the 8 gallon tanks.
You are correct that you need to use the fuel line diagram for earlier
serial numbers in order for those to work in your system. I do not have any of
the books in front of me, but as I recall, the fuel shut off to the engine
pump was placed in the cross over line between the tanks but close to the
right tank. The fuel line to the pump came out of the shut off and ran along
the
right side wall out to the engine. The fuel return line, from the header
tank, only went to the right wing tank.
Lynn Nelsen
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