Condenser Testing - Lincoln Continental 1964 Shop Manual

9-16
2. Set the distributor in the sup-
port arm and enter the lower end
of the distributor shaft in the Syn-
crograph chuck.
3. Tighten the chuck on the dis-
tributor shaft, using the wrench lo-
cated near the support arm column.
4. Align the distributor shaft by
shifting the support arm and distrib-
utor, then tighten the clamp screw.
5. Clamp the distributor securely
in the distributor support arm clamp
so that it will nqt tum in its mount-
ing.
MECHANICAL OPERATION
1. Turn the OFF, SET, CAM,
SYNC. switch to SET.
2. Adjust the SET TACH control
so the tachometer pointer is on the
SET line.
3. Turn the OFF, SET, CAM,
SYNC. switch to SYNC. position.
4. Tum the MOTOR switch to the
LEFT position.
5. Adjust the speed control to vary
the distributor speed between 400
and 4000 engine rpm, or at the max-
imum speed of the engine on which
the distributor is used. Erratic or
thin faint flashes of light preceding
the regular flashes as the speed of
rotation is increased can be due to
weak breaker arm spring tension or
binding of the breaker arm on the
pivot pin.
6. Operate the distributor at ap-
proximately 2500 engine rpm and
move the protractor scale so that the
zero degree mark on the scale is op-
posite one of the neon flashes. The
balance of all the flashes should
come within 1
o,
plus or minus, even-
ly around the protractor scale. A
variation larger than 1
o
or erratic or
wandering flashes may be caused by
a worn cam or distributor shaft or
a bent distributor shaft.
DWELL ANGLE
1. Turn the OFF, SET, CAM,
SYNC. switch to the CAM position.
Operate the distributor at about 1000
rptn.
2. Adjust the breaker point gap
until the cam angle is to specifica-
tions.
DISTRIBUTOR SPARK
ADVANCE
The spark advance is checked to
determine if the ignition timing ad-
vances in proper relation to engine
speed and load.
1. Check the contact dwell. If the
contact dwell or the breaker point
GROUP 9-IGNITION SYSTEM
gap is not within specifications, ad-
just the breaker points.
2. Check the breaker arm spring
tension and adjust it, if necessary.
The dual advance distributor has
two independently operated spark
advance systems. Each system is ad-
justed separately. Adjust the cen-
trifugal advance bef01·e adjusting
the vacuum advance.
Centrifugal Advance
1. Do not connect the test set
vacuum line to the diaphragm. Set
the test set to
oo
advance and the
initial rpm setting listed in the speci-
fications.
2. Operate the distributor in the
direction of rotation ( counterclock-
wise) and slowly increase the rpm
to the setting specified for the first
advance reading listed in the speci-
fications.
If the correct advance is not indi-
cated at this rpm, stop the distrib-
utor and bend one spring adjust-
ment bracket to change its tension
(Fig. 27). Bend the adjustment
bracket away from the distributor
shaft to decrease advance (increase
spring tension) and toward the shaft
to increase advance (decrease spring
tension). After the adjustment is
made, identify the bracket.
3. After an adjustment has been
made to one spring, check the mini-
mum advance point again.
4. Operate the distributor at the
specified rpm to give an advance just
below the maximum. If this advance
is not to specifications, stop the dis-
tributor and bend the other spring
bracket to give the correct advance.
5. Check the advance at all rpm
settings listed in the specifications.
Operate tpe distributor both up and
down the rpm range.
Vacuum Advance
1. Connect the test set vacuum
line to the fitting on the diaphragm.
2. Set the test set to
oo
advance,
0 vacuum, and at 1000 rpm.
3. Check the advance at the first
vacuum setting given in the speci-
fications.
4. If the advance is incorrect,
change the calibration washers be-
tween the vacuum chamber spring
and nut (Fig. 28) . After installing
or removing the washers, position the
gasket and tighten the nut. The
addition of a washer will decrease
advance and the removal of a
washer will increase advance.
5. After one vacuum setting has
(192)
been adjusted, the others should be
checked. Do not change the orig-
inal rpm setting when going to a
different vacuum setting. If the
other settings are not within limits,
there is -incorrect spring tension,
leakage in the vacuum chamber and/
or line, or the wrong fiber stop has
been installed in the vacuum cham-
ber of the diaphragm housing.
DISTRIBUTOR TESTS-
SUN DT -600 TESTER
MOUNTING
1. Using the elevation crank, raise
the clamp arms high enough to per-
mit the shaft of the distributor to
clear the drive chuck.
2. Position the distributor in the
clamp with the vacuum diaphragm
pointing toward the right. Tighten
the clamp arms securely around the
distributor body. Install the proper
adapter to the vacuum diaphragm.
3. Lower the distributor with the
elevation crank until the gear or
% inch of the tip of the distributor
shaft enters the drive chuck, or until
the shaft engages the adapter if an
adapter is being used. Do not bot-
tom the distributor shaft in the
chuck.
4.
Tighten the chuck. Do not try
to raise or lower the distributor
after the chuck has been tightened.
CONDENSER TESTING
Condensers should be tested for
series resistance, capacity and leak-
age. The preparation procedure is
as follows:
1. Trip the motor switch to the
proper position for the rotation of
the distributor being tested.
2. Turn the condenser test -selec-
tor switch to the SERIES RESIST-
ANCE position and connect the con-
denser test leads to·gethet.
3. Turn the condenser calibrate
control clockwise from the OFF po-
sition.
4. Allow the tester to warm up for
approximately 30 seconds and then
adjust the calibrate control until the
condenser meter reads on the SET
LINE.
5. Rotate the distributor shaft until
the cam holds the breaker points
open.
6. Separate the test leads and con-
nect one to the distributor primary
lead and the other to the distributor
body.
Series Resistance. Turn the con-
denser test selector switch to the