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IGNITION SYSTEM
8 4 7
C E N T E R LINE
OF ROTOR ELECTRODE
I
63x761
Fig.
7
7-Scribe
Line on Distributor Shaft
90
degrees from the old hole in the shaft and with
the scribed line centered between the two gear teeth
as shown.
NOTE: If it appears that the new pin hole may in-
terfere with the shaft oil groove, rotate the gear to
the centerline of the next pair of gear teeth, align-
ing again with the scribe mark on the end of the
shaft.
(e) Before drilling through the shaft and gear, place
C E N T E R LINE OF ROTOR ELECTRODE
MARK
O N
SHAFT
C ~ N T E R LINE OF SPACE
BETWEEN TWO
TEETH
63x762 A
Fig. 12-Aligning
Gear Teeth with Centerline
of Rotor Electrode
KER
ARM AND SPRING
NY703
Fig. 73-Testing
Breaker Arm Spring
Tension Uypicall
a
.007 inch feeler gauge between the gear and thrust
washer and after again observing that the centerline
between two of the gear teeth
is
in line with the cen-
terline of the rotor electrode (Fig. 12) drill a .124-
.129 inch hole and install the roll pin.
CAUTION: Support the hub of gear when installing
the roll pin so that the gear teeth will not be dam-
aged.
(9)
Install the oiler wick and oiler.
(10) Install the contact plate assembly, align the
condenser lead, movable contact spring, primary lead,
and install attaching screws.
(111 Install the felt wick in top of distributor cam
(Fig. 3).
(12) Attach the vacuum advance unit arm to the
contact plate and install the retainer clip.
(13) Install the vacuum unit attaching screws and
washers.
(14) Check the contact arm spring tension.
(15) Adjust the contact gap.
(16) Lubricate the felt pad in top of distributor
cam with 3 to 5 drops
of
light engine oil and install
the rotor.
TESTING CONTACT ARM
SPRING TENSION
(1) Hook a spring scale MTU-36 on the breaker arm
MOVABLE CONTACT ARM
TOOL--.-
STATIONARY
CONTACT
Fig. 14-Adjusting
Point Clearance with
Indicator (Typical)
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