6G- 68
1973 OPEL SERVICE MANUAL
SPECIFICATIONS
TUNE-UP SPECIFICATIONS AND ADJUSTMENTS
Voltage Regulator
Voltage Regulator Setting in Volts at 2500 Engine RPM
. . . . . . . . . . . . . . . . . . . . . .
14+
.5
Ignition Coil
Ignition Coil Current Draw, Amperes at 12.5 Volts
Engine Stopped
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.8
Engine Idling
. . . . . . . . . . . . . . . . . .._................................................................................................
2.3
Total Advance (Centrifugal and Vacuum), Engine Degrees at 3600 Engine RPM
......
29-38
Centrifugal Advance, Engine Degrees and RPM
Start Advance, at RPM
........................................................................................
1000-1200
Medium Advance, Degrees at RPM
..............................................................
7.5-15 at 1400
Maximum Advance, Degrees at RPM
..........................................................
28-32 at 3600
Vacuum Advance, Engine Degrees and In. of Vacuum
Start Advance..
.........................................................................................
-5 at
2.9-4.1 In.
Maximum Advance..
................................................................................
1-5
at
4.5-5.0 In.
Vacuum Retard, Engine Degrees at Closed Throttle
............................................................
-5
Condenser Capacity in
MicroFarads
..............................................................................
.23-.32
Breaker Spring Tension in Ounces
..............................................................................
14 to 19
Breaker Point Gap in Inches
..............................................................................................
,016
Dwell Angle in Engine Degrees
..................................................................................
50
+
3
Firing Order
....................................................................................................................
l-3-4-2
Spark Plug or Coil Cable, Max. Resistance in
Ohms
.................................................. 10,000
Spark Plugs
Make and Model Production
....................................................................................
AC42FS
Make and Model
-
Replacement
..................................................................................
AC42FS
If carbon fouling occurs, use
....................................................................................
AC43FS
Spark Plug Torque in
Lb.Ft.
................................................................................................
.30
Spark Plug Gap in Inches
..................................................................................................
,030
Valve Lifter Adjustment
One full turn (clockwise) after zero clearance is obtained
-
refer to Valve Adjustment
Procedure
Ignition Timing
Align timing marks with distributor retard hose disconnected and plugged
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