Chevrolet IMPALA 3.9L 2009, Cng System Installer Manual, Page: 12 / 32

© 2009 IMPCO Technologies, Inc. -10- 2009 3.5/3.9L Impala CNG
7) Assemble the fuel hoses by inserting the
barbed hose fittings through the 8mm
special nuts and into the ends of the fuel
hoses. Install two clamps over the hoses
centering them over the barbed fittings
and clamping them with the hose clamp
pliers.
8) Thread the fuel nozzles into one end of
the fuel hoses and torque them to 62 in-
lbs (7 Nm).
NOTE: Hose illustrated not actual length.
Sample Illustration
9) After all fuel hoses have been cut to
length and assembled, wrap one of the
maximum fuel working pressure labels
around EACH hose.
10) Wrap the label around the hose “Towards
one end of the hose” (as illustrated). DO
NOT affix the label along a bend in the
hose as it may cause a kink in the hose
restricting fuel flow.
11) One of these labels must be affixed to
every fuel hose between the regulator
outlet and the intake manifold to
comply with government regulations.