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(203)
PART
9-3
SPECIFICATIONS
DISTRIBUTOR
GENERAL
Conventional Ignition System
Breaker Arm Spring Tension (Ounces)
......... 17-20
Contact Spacing (Inches) . . . . . . . . . . .
. .. 0.014-0.018
Dwell Angle at Idle Speed . . . . . . . . . .
. .... 26°-28;6
o
Transistor Ignition System
Breaker Arm Spring Tension (Ounces)
......... 19-21
Contact Spacing (Inches) ............... 0.019-0.021
Dwell Angle at Idle Speed . . . . . . . . . .
. ...... 22°-24°
DIMENSIONS
Shaft End Play With Distributor
Removed (Inches) . . . . . . . . . . . . . . . . .
. ... 0.022-0.030
Gear Location Dimension, From Bottom
of
Gear
to Bottom of Mounting Rib (Inches) .
. ... 3.071-3.077
CONDENSER
Capacity (Microfarads) ...............
3
Maximum Leakage (Megohms) ...... .
a._M_a_x_im_um __ Se_r_i_es_R_e_s_is-ta_n_c_e_( o_h_m_s_)_ .. _._
1
IGNITION TIMING
Recommended Setting* . . . . . . . . . . . . . . . . ...... 6
o
BTDC
*If
the individual requirements of the car and/or if sub-
standard fuels dictate, the initial timing may have to be
retarded from the recommended setting to eliminate detona-
ltion (spark knock) . If retarding is necessary it should be
done progressively and not to exceed 2" BTDC.
ADVANCE CHARACTERISTICS
Note: The advance characteristics that are given apply to
the distributor number as stamped on the distrib-
utor housing or on a plate attached to the distrib-
utor housing.
Conventional Ignition System (Distributor
No. C4VF-12127-B)
CENTRIFUGAL ADVANCE. Set the tt:st stand to
oo
at
250 rpm and 0 inches of vacuum.
Distributor
(rpm)
500
600
800
1600
2000
Maximum Advance Limit
Advance
(Degrees)
l1.4-2Y4
2%-3%
4-5
6%-8%
8%-9
3
/<i
Vacuum (Inches
of Mercury)
0
0
0
0
0
... Not applicable
ADVANCE CHARACTERISTICS (Continued)
VACUUM ADVANCE. Set the test stand to
oo
at 1000 rpm
and 0 inches of vacuum.
Distributor
(rpm)
1000
1000
1000
1000
Maximum Advance Limit
Advance
Vacuum {Inches
(Degrees)
of Mercury)
Y2-3Y2
8
2;6-5;6
10
4-7
12
41h-7;6
20
........................ 7;6
0
Transistor Ignition System (Distributor
No. C4VF-12127-C)
CENTRIFUGAL ADVANCE. Set the test stand to
oo
at
250 rpm and 0 inches of vacuum.
Distributor
Advance
Vacuum (Inches
(rpm)
(Degrees)
of Mercury)
500
11;4 -2Y4
0
600
2%-3%
0
800
4-5
0
1600
6%-81;4
0
2000
8Y4-9%
0
Maximum Advance Limit ............... Not applicable
VACUUM ADVANCE. Set the test stand to
oo
at 1000 rpm
and 0 inches of vacuum.
Distributor
(rpm)
1000
1000
1000
1000
Maximum Advance Limit
SPARK PLUGS
Advance
Vacuum (Inches
(Degrees)
of Mercury)
1
h-3;6
8
2Y2-5;6
10
4-7
12
4Y2-7Y2
20
........................ 7lh0
Type ............................... Auto Lite BF-42
Size ........................................
18
mm.
Gap (Inches)
Conventional Ignition System ............. 0.032-0.036
Transistor Ignition System ................ 0.028-0.032
Torque
(F~Ibs)
.............................. 15-20*
*When a new spark plug is installed in a new replacement
cylinder head, torque the spark plugs to 20-30 ft-lbs.
COIL
Conventional Ignition System
Primary Resistance (Ohms)* ........ 1.40-1.54 (75° F.)
Secondary Resistance (Ohms) ...... 8000-8800 (75° F.)
Amperage Draw
Engine Stopped .............................. 4.5
Engine Idling ................................ 2.5
*Primary Circuit Resistor ........... 1.30-1.40 (75° F.)
Transistor Ignition System
Primary Resistance (Ohms)* ........ 7.00-9.00 (75o F.)
Secondary Resistance (Ohms) ...... 5000-7000 (75° F.)
Amperage Draw
Engine Cranking ............................. 4.0
Engine Idling ................................ 5.0
*Primary Circuit Resistor .......... 7.00-9.00 (75° F.)
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