PIPER
CHEROKEE
SIX
SERVICE
MANUAL
f. Check carburetor
air box for wear and full
travel of heat door.
g. Check adjustment
of idle mixture
and idle speed.
NOTE
If a pipe plug is found
to leak after it has
been tightened to
the above limits,
do not tighten further
but rather, remove
the plug and apply more
sealing compound to
the threads.
Reinstall the plug and tighten to the desired torque. When
plugs are tightened in a hot engine, reduce the recommended
torques by 20% owing to the different expansion
characteristics of the steel plugs and the housings.
7-2 la. THROTTLE ARM.
a. Remove screw securing the
throttle arm to the carburetor. Do
not remove the
throttle arm.
b.
Remove
and
discard
lock tab.
c. Examine
the screw to determine if there is
a hole through the head of the screw.
If
not, drill a 1/16 inch diameter hole through the head of the screw.
d. Reinstall the
screw, torque to 20 to
28 inch pounds.
NOTE
Be sure
the torque handle is correctly
calibrated to insure the
attaching screw is neither under nor over tightened.
e. Using a .032 inch diameter
safety wire, first tie the wire
to the idle stop lever and
then continue as shown in Figure 7-5.
f.
Depending upon the carburetor model,
the sequence and direction of tying
may vary
however, the idle stop arm, throttle arm and attaching screws must all be tied together.
7-22. ADJUSTMENT OF IDLE MIXTURE.
a. After performing the standard engine starting procedure, operate the engine for at
least 2 minutes between 800 to 1200 RPM to insure proper engine warm-up.
POWER PLANT
Issued:
8/17/72
2F5
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