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17 ENGINE TUNE-UP
FIGURE 14
NOTE: If the car is out of warranty the voltage
regulator can be set by bending the spring
hanger to get this necessary reading. The unit
must be final-checked with the voltage regula-
tor cover in place as generally it will change
the reading from .1 to .2 of a volt and must be
compensated for in making this adjustment.
5. Stop engine, disconnect battery negative termi-
nal and then proceed to remove the tester leaks
from the voltage regulator and install the wires
back on the "B" terminal of the regulator.
6. Install voltage regulator cover.
VOLTAGE REGULATOR ADJUSTMENT
1. Remove cover and change the armature spring
tension by bending the lower spring hanger.
Increasing the tension raises the operating volt-
age; decreasing the tension lowers it.
2. Replace cover and recheck.
3. After each adjustment, stop the engine and
restart. Bring up engine speed to deliver 15
amperes before taking a reading.
CURRENT REGULATOR CHECK
1. Disconnect the battery wire terminal "B"and
connect the test ammeter between the voltage
regulator "B" terminal and the wire disconnected,
Figure 15.
FIGURE 15
2. Connect a Starter-Battery Tester directly across
the battery and set load to 45 amperes or use the
equivalent in sealed beam lamps.
3. Run engine to approximately 2000 R.P.M. am-
perage reading should be 36 amperes. If it is not
within a tolerance of one or two amperes of this
reading, the unit should be taken to an autho-
rized Auto-Lite dealer for replacement.
NOTE: If car is out of warranty, remove the
voltage cover and adjust the current regulator
spring hanger to the necessary 36 ampere out-
put. To prevent operation of the voltage regula-
tor unit place a jumper across voltage regulator
points during this test. For final test always
replace the cover on the unit.
CAUTION: Momentarily touch t he negative
battery cable to the battery negative post to
determine that there is no spark between the
battery negative post and cable terminal then
connect negative cable.
CURRENT REGULATOR ADJUSTMENT
1. Remove cover and change armature spring ten-
sion by bending the lower spring hanger. In-
creasing the tension raises the operating
amperage, decreasing the tension lowers it.
2. Replace cover and recheck. Stop and start engine
after each adjustment. Take readings with cover
in place.
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