FORD * MERCURY
1970-75 Tune-up Specifications
| Year | Engine Car Model | Spark Plug Type
(A)
- Gap |
Point Gap | Dwell Angle | Firing Order | Ignition Timing
(BTDC
or Mark)
1 |
Hot Idle | |
| Std. Tran | Auto Tran
2 |
|||||||
| 1970 | 6-170 | BF-82/.035 | .027 | 35-40 | 153624 | 6° | 750 | 550 |
| 6-200 | BF-82/.035 | .027 | 35-40 | 153624 | 6° | 750 | 550 | |
| 6-250 | BF-82/.035 | .027 | 35-40 | 153624 | 6° | 800/500
12 |
500 | |
| 8-302 | BF-42/.035 | .021 | 24-29 | 15426378 | 6° | 800/500
12 |
600/500D
12 |
|
| 8-302
BOSS |
AF-32/.034 | .020 | 30-33 | 15426378 | 16° | 800/500
12 |
- | |
| 8-351
5, 7 |
AF-42/.034 | 3 |
3 |
13726548 | 6° | 700/500
12 |
600/500D
12 |
|
| 8-351
Std. trans 5, 8 |
BF-42/.034 | 3 |
3 |
13726548 | 6° | 700/500
12 |
- | |
| 8-351
Auto trans5, 8 |
BF-42/.034 | 3 |
3 |
13726548 | 10° | 700/500
12 |
- | |
| 8-351
6 |
AF-32/.034 | 3 |
3 |
13726548 | 6° | 800/500
12 |
600/
500D
12 |
|
| 8-428 | BF-32/.034 | 3 |
3 |
15426378 | 6° | 800/500
12 |
600/
500D
12 |
|
| 8-429
Auto trans6 |
BF-42/.034 | 3 |
3 |
15426378 | 4° | 700/500
12 |
700/500
12 |
|
| 8-429
CJ |
AF-32/.034 | 3 |
3 |
15426378 | 10° | 700 | 600 | |
| 8-429
BOSS |
AF-32/.034 | .020 | 30-33 | 15426378 | 10° | 700 | - | |
| 1971 | 6-170 | BRF-82/.034 | .027 | 35-40 | 153624 | 6° | 750
16 |
- |
| 6-200 | BRF-82/.034 | .027 | 35-40 | 153624 | 6° | 750
16 |
550D
16 |
|
| 6-250 | BRF-82/.034 | 4 |
4 |
153624 | 6° | 750/500
12 |
600/
500D
12 |
|
| 8-302 | BRF-42/.034 | .021 | 24-29 | 1546378 | 6° | 800/500
12 |
600/
500D
12 |
|
| 8-302
BOSS |
AF-32/.034 | .020 | 30-33 | 1546378 | 16° | 800/500
12 |
- | |
| 8-351
5 |
ARF-42/.034 | 3 |
3 |
13726548 | 6° | 700/500
12 |
600D | |
| 8-351
6 |
ARF-42/.034 | .021 | 24-29 | 13726548 | 6° | 800/500
12 |
600D | |
| 8-429
CJ |
AF-32/.034 | .021 | 24-29 | 15426378 | 10° | 700/500
12 |
650
/500D
12 |
|
| 8-429
SCJ |
AF-32/.034 | .021 | 24-29 | 15426378 | 10° | 650/500
12 |
700/
500D
12 |
|
| 1972 | 6-170 | BRF-82/.034 | .027 | 35-39 | 153624 | 6° | 750 | - |
| 6-200
no A/C |
BRF-82/.034 | .027 | 35-39 | 153624 | 6° | 750 | 550D | |
| 6-200
A/C |
BRF-82/.034 | .027 | 35-39 | 153624 | 6° | 800/500
12 |
600/
500D
12 |
|
| 6-250 | BRF-82/.034 | .027 | 35-39 | 153624 | 6° | 550 | 550D | |
| 6-250 | BRF-82/.034 | .027 | 35-39 | 153624 | 6° | 750/500
12 |
600/
500D
12 |
|
| 8-302 | BRF-82/.034 | .017 | 26-30 | 15426378 | 6° | 575 | 575D | |
| 8-302 | BRF-82/.034 | .017 | 26-30 | 15426378 | 6° | 800/500
12 |
600/
500D
12 |
|
| 8-351
5 |
ARF-82/.034 | .017 | 26-30 | 13726548 | 6° | 750/500
12 |
575/
500D
12 |
|
| 8-351
CA 5 |
ARF-42/.034 | .017 | 26-30 | 13726548 | 6° | - | 625/
500D
12 |
|
| 8-351
Std. trans 6 |
ARF-42/.034 | .020 | 26-30 | 13726548 | 16° | 1000/
500
12 |
- | |
| 8-351
Auto trans 6 |
ARF-42/.034 | .017 | 26-30 | 13726548 | 16°
10 |
- | 700/500
12 |
|
| 8-351
Auto trans CA 6 |
ARF-42/.034 | .017 | 26-30 | 13726548 | 16° | - | 800/500
12 |
|
| 8-352
H.O. |
ARF-42/.034 | .020 | 26-30 | 13726548 | 10° | 1000/
500
12 |
- | |
| 8-400 | ARF-32/.030 | .017 | 26-30 | 13726548 | 11 |
- | 625/500D
12 |
|
| 8-429 | BRF-42/.034 | .017 | 26-30 | 15426378 | 10° | - | 600/500D
12 |
|
| 1973 | 6-200 | BRF-82/.034 | .027 | 35-39 | 153624 | 6° | 800 | 650D |
| 6-250 | BRF-82/.034 | .025 | 37-39 | 153624 | 6° | 750 | 600D | |
| 8-302 | BRF-42/.034 | .017 | 24-30 | 15426378 | 6° | 800 | 650D | |
| 8-351
5, 9 |
BRF-42/.034 | .017 | 30-33 | 13726548 | 6° | - | 625D | |
| 8-351
5, 13 |
ARF-42/.034 | .017 | 30-33 | 13726548 | 10° | - | 625D | |
| 8-351
6 |
ARF-42/.034 | 17 |
18 |
13726548 | 14 |
900 | 700D | |
| 8-400 | ARF-42/.034 | .017 | 24-30 | 13726548 | 6° | - | 625D | |
| 8-429 | ARF-42/.034 | .017 | 24-30 | 15426378 | 18° | - | 600D | |
| 8-460 | ARF-42/.034 | .017 | 24-30 | 15426378 | 14° | - | 600D | |
| 1974 | 6-200 | BRF-82/.034 | .025 | 33 | 153624 | 6° | 750 | 550D |
| 6-200
21 |
BRF-82/.034 | - | - | 153624 | 6° | 750 | 550D | |
| 6-250 | BRF-82/.034 | .025 | 33 | 153624 | 6° | 600 | 600D | |
| 6-250
21 |
BRF-82/.034 | - | - | 153624 | 6° | 600 | 600D | |
| 8-302 | BRF-42/.034 | .017 | 26-30 | 15426378 | 6° | 850 | 575D | |
| 8-302
21 |
BRF-42/.034 | - | - | 15426378 | 6° | 850 | 575D | |
| 8-351
5, 9 |
BRF-42/.034 | .017 | 26-30 | 13726548 | 6° | - | 600D | |
| 8-351
5, 9, 21 |
BRF-42/.034 | - | - | 13726548 | 6° | - | 600D | |
| 8-351
5, 13 |
ARF-42/.044 | .017 | 26-30 | 13726548 | 10° | - | 650D | |
| 8-351
5, 13 , 21 |
ARF-42/.044 | - | - | 13726548 | 10° | - | 650D | |
| 8-351
6 |
ARF-42/.034 | .017
17 |
26-31 | 13726548 | 14 |
900 | 800D | |
| 8-351
6, 21 |
ARF-42/.034 | - | - | 13726548 | 14 |
900 | 800D | |
| 8-400
21 |
ARF-42/.044 | - | - | 13726548 | 19 |
- | 625D | |
| 8-460
21 |
ARF-52/.054 | - | - | 15426378 | 20 |
- | 650D | |
| 1975 | 6-200
21 |
BRF-82/.044 | - | - | 153624 | 6° | 750 | 600D |
| 6-250
21 |
BRF-82/.044 | - | - | 153624 | 6° | 750 | 600D | |
| 8-302
21 |
ARF-42/.044 | - | - | 15426378 | 6° | 900 | 650D | |
| 8-351
15, 21 |
ARF-42/.044 | - | - | 13726548 | 14° | 650D | ||
| 8-351
9, 21 |
ARF-42/.044 | - | - | 13726548 | - | 650D | ||
| 8-400
21 |
ARF-42/.044 | - | - | 13726548 | 12° | 650D | ||
| 8-460
21 |
ARF-52/.044 | - | - | 15426378 | 14° | 650D | ||
A- Autolite
1- BTDC - Before top dead center
2 - D- Drive
3 - Dual diaphragm .021 gap, 24-29° dwell. Single diaphragm .017 gap, 26-3°1 dwell.
4 - Dual diaphragm .027 gap, 35-40° dwell. Single diaphragm .025 gap, 37-42° dwell.
5-Two barrel Carburetor
6 - Four barrel carb.
7- Fairlane & Montego
8- Mustang & Cougar
9- Windsor engine
10- Cougar with 12 inch converter 10° BTDC 11- Exc CA 8° , CA 6°
12- Higher figure is with throttle solenoid energized
13- Cleveland engine
14- Manual trans 16° BTDC, Auto trans 18° BTDC
15- Modified engine
16- A/C add 50 rpm with head light high beams on and A/C off
17- Manual .020, Auto tran .017
18- Manual 32-35° Auto 24-30°
19- Cougar 14° ,all others 6°
20- Cougar 14° ,all others 10°
21- Breakerless distributor