Piper PA-24 Comanche Service Manual page 464

PIPER COMANCHE SERVICE MANUAL
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NORMAl. POINT IS SMOOTH
~NO
FUT. SURFACE HAS
CULL GRAY "SANOElUSTEO"
APPEARANCE
MINOR IRREGUL.ARITIES -
SMOOTH ROL.L.ING HIL.LS
ANO OAL.ES WITHOUT ANY
DEEP PITS OR HIGH PEAKS.
Tl-IIS IS A NORMAL. CON-
OITION OF POINT WEAR.
WEL.L. OEFINED MOUNO
EXTENOING NOTICEABLY
ABOVE SURROUND ING
SURFACE.
FIGURE lC·S. CONTACT POINTS
g. Check condition of the am foUower felt. Squeeze felt updy between thumb and forefm,er. If
fingers are not moistcnecl with oil, re-oil usiq Z or 3 drop. of Scintilla 10-865Z7 lubricant. Allow
approximately 30 minutes for felt to absorb the oil. Blot off the exccu with a dean doth. Too much oil
may foul contact poino and
c:&1ISC
excessivebllminJ.
h. Check the capacitor mOllntir!t bracket for cncks or lootenesa. Usi", the Scintilla 11-176i-1.
·z
or
-3 Condenxr Testor or equiva1ent. check capacitor for capacitance. series resistance and leakate. •
Capacitance shall be at lean 0.30 microfarads.
i, Check ma,ncto to enciDe
timin,
as foUows:
1.
Connect Scintilla 11-851 TimiD( Litht or tquivalent
aero.
the
main
contact assembly.
2. Slowly brinf the engine up to number one cylinder advance
finn,
position as instructed in
paragraph 7C-S 3. At this inSWlt the timin,li,ht should
' 0
out. If it does. the
mapetO is properly timed to
the engu'le. If the timinl litht does not go Ollt. removal of the mqfteto for internal timing check and
inspection
is
recommended.
NOTE
The magneto service insmlctions
in
this manual are to cover minor
repairs and timing. For further repairs and adjllStlheDts of the magneto,
it
is recommended that the manufacturer's recommended service
instructions be followed.
POWER PLANT
ISSUED: 8/18/72
2
H12
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