Piper Comanche PA-24 Service Manual page 601

PIPER COMANCHE SERVICE MANUAL
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FIGURE 7e·la. REMOVING FROZEN SPARK PLUG
NOTE
Torque indicatins llandle should not be .... d for spark plug remov:ll
because of the grater torque requlI'CmCDt.
c.
Place spark plup in a tray that
will identify their
positi~n
in the engine as soon as they are
removed.
NOTE
Spark plup should not be used if they have been dropped.
d. Remov:ll of seIZed spark plug> In the cylinder may be accomplished by application of liquid carbon
dioxide by a Conical metal funnel adapter with a. nole at the apex
JUSt
large enough to accommodate the
funnel of a C02 bottle. <Refer to FIgUre 7C·16.) When a seized spark plug cannot be removed by norm:ll
means. the funnel adapter is placed over and uound the spark plug. Place the funnel of the C02 bonie
inSIde the funnel ,ldaptcr and release the carbo_" dioxide to chill and contract the spark plug. Break the
spark plug loose
With 1
wrench. A warm cylinder head
a[
the tunc the carbon
diOXide
is applied will aid in
the rcmovill of an excessively seized plug.
c. Do not allow foretgn objects to enter the spark plUI hole.
2
H19
POWER PLANT
ISSUED: 8/18/72