Beechcraft C23 SUNDOWNER 180 Pilot Operating Handbook page 158

Section VII BEECHCRAFT Sundowner 180
Systems Description
C23 (M-1285 and After)
FUEL
SYSTEM SCHEMATIC
ENGINE DRIVEN
FUEL PUMP
CARBURETOR
FIREWALL
FITTINGS
FIREWALL
CHECK VALVE
FUEL
PRESSURE
GAGE
BOOST
PUMP
FUEL STRAINER
AND
DRAIN
FUEL SELECTOR VALVE
AND
LEFT FUEL
STRAINER
HIGHT FUEL
TANK
TANK
EFFECTIVE M-1820, M-1837, M-1842, M-1845, M-1853,
M-1854, M-1856, M-1860, M-1861, M-1862, M-1865, M-1866,
M-1869, M-1871
AND
AFTER.
7-22
February 1979