Piper Cherokee Six - Page 434

PIPER
CHEROKEE SIX
SERVICE MANUAL
g. Check condition
of cam follower
felts for proper
lubrication.
If oil has migrated
from
one follower felt to
another, it may be
necessary to remove
the lubrication
from one
felt strip
while oiling
another. If felt
is over lubricated,
remove
oil by using
a clean, lintless
cloth.
If dry,
apply one
or two drops
of Bendix
Breaker Felt
Lubricant
10-86527.
h.
Check the
capacitors for
looseness
in the magneto
cover of
the harness
assembly and
for
any physical
damage. Using
a Bendix
1 1-1767-1,
-2 or -3 condenser
tester
or equivalent,
check
capacitors
for capacitance,
series
resistance and
leakage. Capacitance
shall
be 0.34 to
0.41 microfarads.
i. Check
magneto to engine
timing per instructions
given
in Paragraph 7A-39.
j. Check action of
impulse coupling. With the ignition
switch off, observe breaker cam
end
of rotor while
manually
cranking the
engine through
a firing sequence.
The
rotor should
alternately
stop
and then (with
an audible
snap) be
rotated rapidly
through
a retard firing
position.
If impulse action is not correct,
remove the magneto for
overhaul.
7A-39.
MAGNETO
INSTALLATION
AND
TIMING
PROCEDURE
(TIMING
MAGNETO
TO ENGINE).
WARNING
Do not attach
harness
spark plug ends
to the spark
plugs until
all magneto
to engine timing procedures
and magneto
to
switch
connections are
entirely completed.
NOTE
The
use of a timing
light unit
Part No. 1 1-91
10 or 11-9110-1
will simplify
the timing procedure. This
unit is available from
the Bendix
Corporation at Sidney,
New York 13838.
a. Remove
the spark plug from
the No. 1 cylinder
and turn the
crankshaft in the
direction of normal
rotation until the compression
stroke is reached.
b.
Continue turning
the crankshaft until
the 20 advance
timing mark is
in alignment
with
the small hole
located on the top
face of the starter
housing at the
two o'clock
position. (Refer to Figure 7A-13.)
c. The D-2000
series magneto
may be mounted
to the engine
without removing
the
cover
from the magneto.
The cover also
has switch terminal
outlets for the
right and left
sides of the
magneto, located
in the center of the
harness lead outlet
section of the
cover.
(Refer to Figure 7A-29.)
NOTE
It is recommended
that short adapter leads
be fabricated to
facilitate connecting
the timing light unit to
the switch outlet
terminals
of the cover. (Refer
to Figure 7A-29.)
POWER
PLANT
Revised:
7/28/75
2H14