Piper Comanche PA-24 Service Manual page 594

PIPER COMANCHE SERVICE MANUAL
NORMAL POINT IS SMOOTH
AND FLAT. SURFACE HAS
001.1. GRAY "SANDBLASTE!)"
APPEARANCE
-
MINOR IRREGULARITIES -
SMOOTH ROI.I.ING HII.I.S
AND OA I.ES WITHOUT AN Y
DEEP PITS OR HIGH PEAKS.
TMIS IS A NORMAL CON-
DITION OF POINT WEAR.
FIGURE 7C·9. CONTACT POINTS
WELL DEFINE!) MOUND
EXTENDING NOTICEABLY
ABOVE SURROUND ING
SURFACE.
s.
Check
condition of the
am
foUower felt. Squeeze felt tiahdy
between
thumb and forer""er. If
fiDlers ue no. moistened with oil. re-oil
usiDJ
Z or 3 drops of Scintilla 1().86'27 Illbricant. AUow
approxim&tely
30
minlltCS for felt to aboorb the oil. Blot off the
excess
WIth a clean cloth. Too milch oil
may f01l1 con,"" points and cause excessive bumiDJ.
h.
Cbeclt the capacitor mOllntins brack .. for crackJ or looscness. Using the Scintilla 11·1767·1.·2 or
·3 Condenser Tenor or eqlliYalcnt. <beck capaator for capaatantc. scri .. rcsi5tantc and leaUge. _
Capacitance sh&i.l be at IC2St 0.30 microfuads. , . ,
I.
Check m ...... o to engine timing
as
foUows,
1. Connect Scintilla 11-8'1 TimiDJ Light or equivalent across the main contact .... mbly.
2. Slowly bring the engine up to number one cylinder advance
firing
position as
U1strUCted
in
paragnph 7C·' 3. At this instant the timing light should go out. If it docs. the
magn ..
o is properly wned to
the engme. If the timing light docs not go out. removal of the magn .. o for internal tuning check and
inspection is recommended. .
NOTE
The magneto
5eMCC
instructions In this manual are to
COVet
minor
rep"" and timing. For fllrther .. pain and adjumnmts of the magn«o.
it is recommended that the manl.Lfac:rurer's recommended service
lnsuuctions be followed.
POWER PLANT
ISSUED:
8/18/72
2
H12