Piper Cherokee Six - Page 420

PIPER CHEROKEE
SIX SERVICE
MANUAL
g.
Check the
condition
of the
cam
follower
felt. Squeeze
felt
tightly
between
thumb and
forefinger.
If fingers
are not moistened
with
oil, re-oil
using 2 or
3
drops
of Scintilla
10-391200
lubricant.
Allow approximately
30 minutes
for felt to
absorb
the oil.
Blot off the
excess
with a clean
cloth. Too
muchoil may
foul con-
tact
points
and cause
excessive
burning.
h. Check
the capacitor
mounting
bracket
for cracks
or
looseness.
Using
the
Scintilla
11-1767-1,
-2 or -3
Condenser
Tester
or equivalent,
check
capacitor
for
capacitance,
series resistance
and
leakage.
Capacitance
shall be
at least
0.30 microfarads.
i.
Check
magneto
to
engine
timing
as follows:
1. Connect
Scintilla
11-851 Timing
Light or
equivalent
across
the
contact
assembly.
2.
Slowly
bring the
engine
up to number
one cylinder
advance
firing
posi-
tion as
instructed
in paragraph
7A-30.
At this instant
the timing
light should
go
out. If
it does,
the magneto
is
properly
timed to
the engine.
If
the timing
light
does not
go out,
removal
of the magneto
for
internal
timing
check
and inspection
is recommended.
NOTE
The
magneto
service
instructions
in this
manual
are
to cover
minor
repairs
and
timing.
For
further
re-
pairs
and
adjustments
of the
magneto,
it is
recom-
mended that the manufacturer's
recommended
serv-
ice
instructions
be
followed.
7A-28.
REMOVAL
OF
MAGNETO.
Before removing
the
magneto,
make sure
magneto
switches
are
off.
a. Remove
the
harness
assembly
terminal
plate
from the
magneto.
WARNING
The
magneto
is not
internally
grounded;
when
the
ground
lead is
disconnected,
the magneto
is
hot.
Removing
the
harness
assembly
terminal
plate
first
and
instal-
ling
them
last
minimizes
the danger
of starting
the en-
gine
accidentallywhen
the ground
lead
is removed
from
the
magneto.
b.
Disconnect
the
ground
lead
at the
magneto.
c. Remove
the
nuts
and washers
and
draw
the magneto
from
the engine.
POWER
PLANT
Revised:
8/14/73
2G24