jump start terminals CHEVROLET CAMARO 1967 1.G Chassis Workshop Manual

ENGINE-ELECTRICAL 6Y-11

I
BAT
JUNCTION BLOCK
DELCOTRON

—GRQ

BATTERY

&HJVVWV

0 VA OHM TEST RELAY >

RESISTOR [ 1 d

FUSIBLE

LINK

TO CRANKING

MOTOR
Ik

REGULATOR

VOLTMETER

FUSIBLE LINK

IGN.
SWITCH

Fig.
7c—Voltage Setting Test Connections

NOTE:
Voltage will not greatly exceed 12-1/2

volts until the battery develops a surface charge,

a few minutes generally, unless the battery is

severely discharged or is hot.

If reading is:

a. 12-1/2 volts or more, turn off electrical loads,

stop engine and proceed to Step 7.

b.
Less than 12-1/2 volts, perform "Delcotron Out-

put Test-Voltmeter Method."

(1) Delcotron tests bad—refer to "Service Op-

erations" and repair Delcotron, then repeat

Step 6.

(2) Delcotron tests good—disconnect regulator

connector, remove regulator cover and recon-

nect the connector. Then repeat Step 6 and

turn voltage adjusting screw (fig. 6c) to raise

setting to 12-1/2 volts. On transistor regula-

tor remove pipe plug (fig. 6c), insert screw

driver into slot and turn clockwise one or two

notches to increase setting. Turning counter-

clockwise decreases setting. For each notch

moved, the voltage setting will change ap-

proximately .3 volt. Turn off loads, stop en-

gine and proceed to Step 7. If 12-1/2 volts

cannot be obtained, install a new regulator and

repeat Step 6.

ADJUSTING REGULATOR VOLTAGE

7. Connect a 1/4 ohm-25 watt fixed resistor (purchased

commercially) into the charging circuit at the junc-

tion block as shown in Figure 7c.

NOTE:
Between both leads and the terminal.

8. Run engine at 1500 rpm or above for at least 15

minutes of warm-up, then cycle regulator voltage

control (by disconnecting and re-connecting regulator

connector) and read voltage.

If voltage is 13.5 to 15.2, the regulator is okay.

If voltage is not within 13.5 to 15.2 volts, leave en-

gine running at 1500 rpm or above and:
a. Disconnect four terminal connector and remove

regulator cover. Then re-connect four terminal

connector and adjust voltage to i4.2 to 14.6.

(Refer to Step 6 and fig. 6c).

b.
Disconnect four terminal connector and reinstall

regulator cover, then reinstall connector.

c. Continue running engine at 1500 rpm for 5-10

minutes to re-establish regulator internal

temperature.

d. Cycle regulator voltage by disconnecting and re-

connecting regulator connector. Read voltage. A

reading between 13.5 and 15.2 indicates a good

regulator.

CAUTION: Be sure four terminal regulator

connector is disconnected when removing or in-

stalling cover. This is to prevent regulator

damage by short circuits.

DELCOTRON OUTPUT TEST

Ammeter Method (Fig. 8c)

1.
Disconnect the battery ground cable at the battery.

2.
Disconnect the red wire at Delcotron battery termi-

nal and connect an ammeter in series between the

wire and terminal.

3.
Connect a voltmeter from battery terminal to a good

ground on the generator.

4.
Disconnect the F-R terminal connector at the

Delcotron.

5. Connect the jumper wire between Delcotron "F" and

battery terminals.

6. Connect the battery ground cable at the battery.

7. Connect an adjustable carbon pile across the battery

posts.

8. Start the engine and slowly bring the speed to 1500

RPM and at the same time adjust the carbon pile

load to hold the voltage at 14 volts.

9. Read the amperage and compare with a specifications

chart.

CHEVROLET CHASSIS SERVICE MANUAL