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FORD * MERCURY

 

1970-75 Tune-up Specifications

1965-69
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 750 550
6-200 BF-82/.035 .027 35-40 153624 750 550
6-250 BF-82/.035 .027 35-40 153624 800/500
12
500
8-302 BF-42/.035 .021 24-29 15426378 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 700/500
12
600/500D
12
8-351
Std. trans 5, 8
BF-42/.034
3
3
13726548 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 800/500
12
600/ 500D
12
8-428 BF-32/.034
3
3
15426378 800/500
12
600/ 500D
12
8-429
Auto trans6
BF-42/.034
3
3
15426378 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 750
16
-
6-200 BRF-82/.034 .027 35-40 153624 750
16
550D
16
6-250 BRF-82/.034
4
4
153624 750/500
12
600/ 500D
12
8-302 BRF-42/.034 .021 24-29 1546378 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 700/500
12
600D
8-351
6
ARF-42/.034 .021 24-29 13726548 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 750 -
6-200
no A/C
BRF-82/.034 .027 35-39 153624 750 550D
6-200
A/C
BRF-82/.034 .027 35-39 153624 800/500
12
600/ 500D
12
6-250 BRF-82/.034 .027 35-39 153624 550 550D
6-250 BRF-82/.034 .027 35-39 153624 750/500
12
600/ 500D
12
8-302 BRF-82/.034 .017 26-30 15426378 575 575D
8-302 BRF-82/.034 .017 26-30 15426378 800/500
12
600/ 500D
12
8-351
5
ARF-82/.034 .017 26-30 13726548 750/500
12
575/ 500D
12
8-351
CA 5
ARF-42/.034 .017 26-30 13726548 - 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 800 650D
6-250 BRF-82/.034 .025 37-39 153624 750 600D
8-302 BRF-42/.034 .017 24-30 15426378 800 650D
8-351
5, 9
BRF-42/.034 .017 30-33 13726548 - 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 - 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 750 550D
6-200
21
BRF-82/.034 - - 153624 750 550D
6-250 BRF-82/.034 .025 33 153624 600 600D
6-250
21
BRF-82/.034 - - 153624 600 600D
8-302 BRF-42/.034 .017 26-30 15426378 850 575D
8-302
21
BRF-42/.034 - - 15426378 850 575D
8-351
5, 9
BRF-42/.034 .017 26-30 13726548 - 600D
8-351
5, 9, 21
BRF-42/.034 - - 13726548 - 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 750 600D
6-250
21
BRF-82/.044 - - 153624 750 600D
8-302
21
ARF-42/.044 - - 15426378 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