©
2009 IMPCO Technologies, Inc.
-12-
2009 3.5/3.9L Impala CNG
4) Attach the long tap handle to the
combination 6x1mm tap & drill. Apply a
light coat of tapping oil to the tap threads
and tap the nozzle hole keeping the tap
perpendicular to the runner face. Repeat
steps 3 – 5 for the remaining five intake
runners. When finished, clean all traces of
metal chips from the intake runners.
5) Apply a light coat of Loxeal to each of the
fuel hose nozzle threads.
6) Thread the fuel hose/nozzle assemblies
into the tapped holes. Using the nozzle
crow’s foot tool (or 10mm wrench) tighten
each fuel hose/nozzle assembly
approximately ¼ turn past hand-tight.
Summary of Contents for IMPALA 3.9L 2009
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