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AMERICAN MOTORS
1965-75 Tune-up Specifications

 
Year
Engine or 
Car Model
Spark Plug
Type (M) 
- Gap
Point
Gap
Dwell
Angle
Firing
Order
Ignition Timing 
(BTDC or Mark)
Hot Idle 3
Std.
Tran
Auto
Tran 
1965
American L-head 6
H10-.035
.016
31-34
153624
550  5
500N 5
American OHV-6 7
H18Y-.035
.016
31-34
153624
8°
550  5
N/A
American OHV-6 6
H18Y-.035
.016
31-34
153624
10°
N/A
500N 5
6-199,232
N14Y-.035
.016
31-34
153624
550  5
550N 5
V8-287,327
N14Y-.035
.016
28-32
18436572
550  5
500N 5
1966
6-199
N14Y-.035
.016
31-34
153624
10° 10
550  6
550N 5
6-232
N14Y-.035
.016
31-34
153624
5°   10
550  5
550N 5
V8-287,327
N14Y-.035
.016
28-32
18436572
2.5°
550  5
550N 5
V8-290  200HP
N12Y-.035
.016
29-31
18436572
TDC
500  5
500N 5
V8-290  225HP
N12Y-.035
.016
29-31
18436572
TDC
500  5
500N 5
1967
6-199 Delco-Remy
N14Y-.035
.016
31-34
153624
   10
600  5
525D  5
6-199 Prestolite
N14Y-.035
.019 36-42 153624
   10
600 5
525D 5
6-232 Delco-Remy
N14Y-.035
.016
31-34
153624
5°  10
600  5
600N 5
6-232 Prestolite
N14Y-.035
.020
36-42
153624
5°  10
600  5
600N 5
V8s Delco-Remy
N12Y-.035
.016
29-31
18436572
TDC
600  5
600N 5
V8s Prestolite
N12Y-.035
.016
27-32
18436572
TDC
600 5
600N 5
1968-69
6-199,232 Std. tran
N14Y-.035
.016 31-34 153624 TDC
600 5
N/A
6-199,232 Auto tran
N14Y-.035
.016
31-34
153624
5°
N/A
525D 5
V8-290,343,390
N12Y-.035
.016
29-31
18436572
TDC
650 5
550D 5
1970
6-199,232
N14Y-.035
.016
31-34
153624
3°
600
550D
V8-304,360,390
N12Y-.035
.016
29-31
18436572
5° 4
650
600D
1971
6-232 Std. tran
N12Y-.035
.016
31-34
153624
3°
700
N/A
6-232 Auto tran
N12Y-.035
.016
31-34
153624
5°
N/A
600D
6-258
N12Y-.035
.016
31-34
153624
5°
700
600D
V8-304,360,401
N12Y-.035
.016
29-31
18436572
2.5°
750
650D
1972
6-232 Exc. CA
N12Y-.035
.016
31-34
153624
5°
600
550D
6-232 CA
N12Y-.035
.016
31-34
153624
3°
700
600D
6-258  Exc. CA
N12Y-.035
.016
31-34
153624
5°
600
550D
6-258 CA
N12Y-.035
.016
31-34
153624
3°
700
600D
V8-304 Exc. CA
N12Y-.035
.016
29-31
18436572
5°
750
650D
V8-304 CA
N12Y-.035
.016
29-31
18436572
5°
750
700D
V8-360
N12Y-.035
.016
29-31
18436572
5°
750
700D
V8-401 Exc. CA
N12Y-.035
.016
29-31
18436572
5°
700
650D
V8-401 CA
N12Y-.035
.016
29-31
18436572
5°
700
700D
1973
6-232
N12Y-.035
.016
31-34
153624
700 8
600D 11
6-258
N12Y-.035
.016
31-34
153624
700 8
600D 11
V8-304
N12Y-.035
.016
29-31
18436572
750
700D
V8-360
N12Y-.035
.016
29-31
18436572
750
700D
V8-401
N12Y-.035
.016
29-31
18436572
750
700D
1974
6-232 L/EGR
N12Y-.035
.016
31-34
153624
700
600D
6-232 W/EGR
N12Y-.035
.016
31-34
153624
600
550D
6-232 CA
N12Y-.035
.016
31-34
153624
600
700D
6-258 L/EGR
N12Y-.035
.016
31-34
153624
550
700D
6-258 W/EGR
N12Y-.035
.016
31-34
153624
550
600D
6-258 CA
N12Y-.035
.016
31-34
153624
600
700D
V8-304
N12Y-.035
.016
29-31
18436572
12
750
700D
V8-360
N12Y-.035
.016
29-31
18436572
750
700D
V8-401
N12Y-.035
.016
29-31
18436572
750
700D
1975
6-232,258
N12Y-.035
-
-
153624
600
550D
6-232,258 CA N12Y-.035 - - 153624
3°
600 700D
V8-304 N12Y-.035 - - 18436572
750 700D
V8-360 N12Y-.035 - - 18436572
N/A 700D
1- BTDC - Before top dead center

2- D- Drive       N- neutral

3 - Where two speeds are listed,
lower speed indicates idle 
solenoid disconnected.

4 - V8-390 with distributor
1111948 set at TDC
5 - A/C switch full on

6 - Auto tranny

 7- Std. tranny

8- Set Matador wagon at
600 rpm.
9- Early 5°, Late 8°

10- California vehicles TDC

11- Set Matador at 650D
12- Exc. CA auto trans  BTDC
CA auto trans 2. BTDC