PICK-UP COIL
5 OHMS
AIR
GAP
_
.5 OHMS
VOLTMETER
IGNITION
+
SWITCH
_
COIL
+
DISTRIBUTOR
DUAL LEAD
RELUCTOR
CONNECTOR
2
AMP
1
METER
3
4
5
DISTRIBUTOR
ADJUSTMENT
SCREW
ASf06058
ASf06056
_
+
Figure 6-56.--Air gap adjustment.
You can substitute a 20,000-volt-ohmmeter that
uses a 1 1/2-volt battery for the tester. To ensure your
BATTERY
meter is in calibration, check the reluctor-to-pickup coil
Figure 6-58.--Harness connector No. 2 test.
air gap with a .006 inch NONMAGNETIC feeler
good ground. Connect the positive (+) lead of the
gauge. The gauge should fit snugly (fig. 6-56) without
voltmeter to the wiring harness connector, cavity 1 (fig.
being forced. Adjust as required. Check the primary
6-57). Available voltage should be within 1 volt of
wire at the ignition coil and ballast resistor for
battery voltage with the accessories off. If there is more
tightness. If these checks do not alleviate the problem,
than a 1-volt difference between the reading and the
the following procedures will determine if a component
battery voltage, check circuit 1 (bold printed). Refer to
is faulty.
the applicable technical manual for appropriate
Check and note the battery reading, which should
color-coding of wires.
be at least 12 volts. Turn the ignition switch to the OFF
Follow the same procedure when connecting
position, and remove the multiwiring connector from
positive (+) leads to cavities 2 and 3 (figs. 6-58 and
the control unit. Turn the ignition switch to the ON
6-59). If more than a 1-volt difference occurs in either
position. Connect the negative lead of the voltmeter to a
5 OHMS
5 OHMS
_
_
.5 OHMS
.5 OHMS
IGNITION
IGNITION
+
+
SWITCH
SWITCH
_
_
COIL
+
COIL
+
DISTRIBUTOR
DISTRIBUTOR
DUAL LEAD
DUAL LEAD
CONNECTOR
CONNECTOR
2
2
AMP
AMP
1
1
METER
METER
3
3
4
4
5
5
DISTRIBUTOR
DISTRIBUTOR
ASf06059
ASf06057
_
_
+
+
BATTERY
BATTERY
Figure 6-57.--Harness connector No. 1 test.
Figure 6-59.--Harness connector No. 3 test.
6-50